Document:

<PAGE>

                                                                        Ex 10.61

                            LOAN REPAYMENT AGREEMENT

     AGREEMENT dated as of the 6th day of January, 2003 between DELTAGEN, INC.
("Company"), a Delaware Company and AUGUSTINE YEE ("Employee").

     WHEREAS, the Company made a relocation assistance loan to Borrower
evidenced by that certain Promissory Note Secured by Deed of Trust dated March
21, 2000 (the "Relocation Loan") in the original principal amount of $50,000;

     WHEREAS, the Relocation Loan is secured by a deed of trust lien on Mr.
Yee's personal residence located at 195 Hillside Avenue, Menlo Park (the
"Subject Property");

     WHEREAS, as of January 6, 2003, the Relocation Loan had an outstanding
balance of $58,607 ($50,000 principal and $8,607 interest);

     WHEREAS, the Yee Relocation Loan has a maturity date of May 1, 2004 (the
"Maturity Date");

     WHEREAS, the Board of Directors of the Company previously agreed to forgive
the Relocation Loan on the Maturity Date;

     WHEREAS, it has been proposed that it is in the best interest of the
Company and its shareholders to retire the Relocation Loan in its entirety prior
to the Maturity Date;

     WHEREAS, it has been proposed that it is in the best interest of the
Company and its shareholders that a percentage of the Relocation Loan be
forgiven (principal and interest) by the Company as of the date first written
above, with the forgiven percentage being a fraction with the numerator equal to
the number of months that have elapsed since the date of hire of Borrower (April
15, 1999) through January 6, 2003 and the denominator being equal to the number
of months in the term of the Relocation Loan (i.e., 44/60 or 73.3%) with the
remaining (unforgiven) principal and interest balance outstanding as of January
6, 2003 on the Relocation Loan, together with any withholding tax balance
thereon being paid by Borrower to the Company in shares of stock of the Company
owned by Borrower.

     WHEREAS, the Borrower and Company have each agreed to the terms of
forgiveness and repayment set forth herein; and

     WHEREAS, the Board of Directors of the Company has considered the proposed
terms and conditions of the Relocation Loan forgiveness contained herein and has
approved such terms.

     NOW THEREFORE, in consideration of the mutual covenants set forth in the
Agreement, the parties hereto agree as follows:

     1.   Partial Forgiveness. Company agrees to and does hereby forgive and
waive its right to receive 73.3% of the $50,000 principal amount due to it under
the Relocation Loan, together with all interest on the principal amount so
forgiven which accrued from the date of the Relocation Loan to the date of this
Agreement. Accordingly, the Relocation Loan shall be

<PAGE>

treated as if partially pre-paid in the amount set forth above, and the unpaid
principal ($13,350) and interest to the date of this Agreement ($2,298) (the
"Loan Remainder"), shall be repaid, together with $19,267 of tax withholding
(the "Withholding") relating to the forgiveness of principal and interest on the
Relocation Loan, through a sale of shares of the Company by Employee to the
Company.

     2.   Satisfaction of Remaining Amount; Withholding Tax. In order to satisfy
the Withholding and the Loan Remainder, Employee agrees to sell and Company
agrees to buy 64,657 shares of the Company's common stock at a price of $0.54
per share (such price equal to the closing sale price of the Company's common
stock on the Nasdaq National Market on the date hereof).

     3.   Note Cancellation; Lien Removal. As of the close of business on the
6th of January 2003, Company shall cancel the note related to the Relocation
Loan, record such cancellation on the books and records of Company, and as soon
a practicable thereafter, remove the lien related to the Relocation Loan from
the Subject Property and deliver the original note, mark cancelled, to Employee,
provided however, that Company's failure to perform any of the foregoing acts
shall not in any way affect the automatic cancellation of the debts and
obligations of Employee under the Note. Concurrently, Employee shall be forever
and unconditionally released from all obligations and liabilities whatsoever
under the Relocation Loan.

     4.   Jurisdiction, Venue and Governing Law. This Agreement shall be
governed by and construed and enforced in accordance with the laws of the State
of California (regardless of that jurisdiction or any other jurisdiction's
choice of law principles). To the extent permitted by law, the parties hereto
agree that all actions or proceedings arising in connection herewith, shall be
litigated in the state and federal courts located in the State of California,
and each party hereby waives any right it may have to assert the doctrine of
Forum Non Conveniens or to object to venue. The parties each hereby stipulate
that the state and federal courts located in the Counties of San Mateo or San
Francisco, State of California, shall have personal jurisdiction and venue over
each party for the purpose of litigating any such dispute, controversy or
proceeding arising out of or related to this Agreement. To the extent permitted
by law, service of process sufficient for personal jurisdiction in any action
against either party may be made by registered or certified mail, return receipt
requested, to its address indicated on the first page hereof.

     5.   Validity. In any one or more of the provisions (or any part thereof)
of this Agreement shall be held to be invalid, illegal or unenforceable in any
respect, the validity, legality and enforceability of the remaining provisions
(or any part thereof) shall not in any way be affected or impaired thereby.

     6.   Attorneys' Fees. The prevailing party shall be entitled to recover
from the losing party its attorneys' fees and cost incurred in any action or
proceeding, including arbitration, brought to interpret this Agreement or to
enforce any right arising out of this agreement.

     7.   No Waiver of Rights. The delay or failure of either party to enforce
at any time any provision of this Agreement shall in no way be considered a
waiver of any such provision, or any other provision, of this Agreement. No
waiver of, or delay or failure to enforce any

                                      -2-

<PAGE>

provision of this Agreement shall in any way be considered a continuing waiver
of any such provision, or any other provision of this Agreement.

     IN WITNESS WHEREOF, each of the undersigned has executed this document as
of the date and year first set forth above.

                                     DELTAGEN, INC.

                                     By:  /s/ Richard H. Hawkins
                                          --------------------------------------
                                          Name: Richard H. Hawkins
                                          Title: Chief Financial Officer

                                     AUGUSTINE YEE

                                     By:  /s/ Augustine Yee
                                          --------------------------------------

                                      -3-<PAGE>

                                                                   Exhibit 10.62

                            MASTER SECURITY AGREEMENT
                     dated as of June 15, 2000 ("Agreement")

     THIS AGREEMENT is between General Electric Capital Corporation (together
with its successors and assigns, if any, "Secured Party"), and Deltagen, Inc.
("Debtor"). Secured Party has an office at 5150 El Camino Real, Suite B-21, Los
Altos, CA 94022. Debtor is a corporation organized and existing under the laws
of the state of Delaware. Debtor's mailing address and chief place of business
is 1003 Hamilton Avenue, Menlo Park, CA 94025.

1.   CREATION OF SECURITY INTEREST.

     Debtor grants to Secured Party, its successors and assigns, a security
interest in and against all property listed on any collateral schedule now or in
the future annexed to or made a part of this Agreement ("Collateral Schedule"),
and in and against all additions, attachments, accessories and accessions to
such property, all substitutions, replacements or exchanges therefor, and all
insurance and/or other proceeds thereof (all such property is individually and
collectively called the "Collateral"). This security interest is given to secure
the payment and performance of all debts, obligations and liabilities of any
kind whatsoever of Debtor to Secured Party, now existing or arising in the
future, including but not limited to the payment and performance of certain
Promissory Notes from time to time identified on any Collateral Schedule
(collectively "Notes" and each a "Note"), and any renewals, extensions and
modifications of such debts, obligations and liabilities (such Notes, debts,
obligations and liabilities are called the "Indebtedness"). Notwithstanding
anything to the contrary contained in this Agreement, to the extent that Secured
Party asserts a purchase money security interest in any items of Collateral
("PMSI Collateral"): (i) the PMSI Collateral shall secure only that portion of
the Indebtedness which has been advanced by Secured Party to enable Debtor to
purchase, or acquire rights in or the use of such PMSI Collateral (the "PMSI
Indebtedness"), and (ii) no other Collateral shall secure the PMSI Indebtedness.

2.   REPRESENTATIONS, WARRANTIES AND COVENANTS OF DEBTOR.

     Debtor represents, warrants and covenants as of the date of this Agreement
and as of the date of each Collateral Schedule that:

     (a) Debtor is, and will remain, duly organized, existing and in good
standing under the laws of the State set forth in the preamble of this
Agreement, has its chief executive offices at the location specified in the
preamble, and is, and will remain, duly qualified and licensed in every
jurisdiction wherever necessary to carry on its business and operations;

     (b) Debtor has adequate power and capacity to enter into, and to perform
its obligations under this Agreement, each Note and any other documents
evidencing, or given in connection with, any of the Indebtedness (all of the
foregoing are called the "Debt Documents");

     (c) This Agreement and the other Debt Documents have been duly authorized,
executed and delivered by Debtor and constitute legal, valid and binding
agreements enforceable in accordance with their terms, except to the extent that
the enforcement of remedies may be limited under applicable bankruptcy and
insolvency laws;

     (d) No approval, consent or withholding of objections is required from any
governmental authority or instrumentality with respect to the entry into, or
performance by Debtor of any of the Debt Documents, except any already obtained;

     (e) The entry into, and performance by, Debtor of the Debt Documents will
not (i) violate any of the organizational documents of Debtor or any judgment,
order, law or regulation applicable to Debtor, or (ii) result in any breach of
or constitute a default under any contract to which Debtor is a party, or result
in the creation of any lien, claim or encumbrance on any of Debtor's property
(except for liens in favor of Secured Party) pursuant to any indenture,
mortgage, deed of trust, bank loan, credit agreement, or other agreement or
instrument to which Debtor is a party;

     (f) There are no suits or proceedings pending in court or before any
commission, board or other administrative agency against or affecting Debtor
which could, in the aggregate, have a material adverse effect on Debtor, its
business or operations, or its ability to perform its obligations under the Debt
Documents, nor does Debtor have reason to believe that any such suits or
proceedings are threatened;

     (g) All financial statements delivered to Secured Party in connection with
the Indebtedness have been prepared in accordance with generally accepted
accounting principles, and since the date of the most recent financial
statement, there has been no material adverse change in Debtors financial
condition;

     (h) The Collateral is not, and will not be, used by Debtor for personal,
family or household purposes;

<PAGE>

     (i) The Collateral is, and will remain, in good condition and repair and
Debtor will not be negligent in its care and use;

     (j) Debtor is, and will remain, the sole and lawful owner, and in
possession of, the Collateral, and has the sole right and lawful authority to
grant the security interest described in this Agreement; and

     (k) The Collateral is, and will remain, free and clear of all liens, claims
and encumbrances of any kind whatsoever, except for (i) liens in favor of
Secured Party, (ii) liens for taxes not yet due or for taxes being contested in
good faith and which do not involve, in the judgment of Secured Party, any risk
of the sale, forfeiture or loss of any of the Collateral, and (iii) inchoate
materialmen's, mechanic's, repairmen's and similar liens arising by operation of
law in the normal course of business for amounts which are not delinquent (all
of such liens are called "Permitted Liens").

3.   COLLATERAL.

     (a) Until the declaration of any default, Debtor shall remain in possession
of the Collateral; except that Secured Party shall have the right to possess (i)
any chattel paper or instrument that constitutes a part of the Collateral, and
(ii) any other Collateral in which Secured Party's security interest may be
perfected only by possession. Secured Party may inspect any of the Collateral
during normal business hours after giving Debtor reasonable prior notice. If
Secured Party asks, Debtor will promptly notify Secured Party in writing of the
location of any Collateral.

     (b) Debtor shall (i) use the Collateral only in its trade or business, (ii)
maintain all of the Collateral in good operating order and repair, normal wear
and tear excepted, (iii) use and maintain the Collateral only in compliance with
manufacturers recommendations and all applicable laws, and (iv) keep all of the
Collateral free and clear of all liens, claims and encumbrances (except for
Permitted Liens).

     (c) Debtor shall not, without the prior written consent of Secured Party,
(i) part with possession of any of the Collateral (except to Secured Party or
for maintenance and repair), (ii) remove any of the Collateral from the
continental United States, or (iii) sell, rent, lease, mortgage, grant a
security interest in or otherwise transfer or encumber (except for Permitted
Liens) any of the Collateral.

     (d) Debtor shall pay promptly when due all taxes, license fees, assessments
and public and private charges levied or assessed on any of the Collateral, on
its use, or on this Agreement or any of the other Debt Documents. At its option,
Secured Party may discharge taxes, liens, security interests or other
encumbrances at any time levied or placed on the Collateral and may pay for the
maintenance, insurance and preservation of the Collateral and effect compliance
with the terms of this Agreement or any of the other Debt Documents. Debtor
agrees to reimburse Secured Party, on demand, all costs and expenses incurred by
Secured Party in connection with such payment or performance and agrees that
such reimbursement obligation shall constitute Indebtedness.

     (e) Debtor shall, at all times, keep accurate and complete records of the
Collateral, and Secured Party shall have the right to inspect and make copies of
all of Debtor's books and records relating to the Collateral during normal
business hours, after giving Debtor reasonable prior notice.

     (f) Debtor agrees and acknowledges that any third person who may at any
time possess all or any portion of the Collateral shall be deemed to hold, and
shall hold, the Collateral as the agent of, and as pledge holder for, Secured
Party. Secured Party may at any time give notice to any third person described
in the preceding sentence that such third person is holding the Collateral as
the agent of, and as pledge holder for, the Secured Party.

4. INSURANCE.

     (a) Debtor shall at all times bear the entire risk of any loss, theft,
damage to, or destruction of, any of the Collateral from any cause whatsoever.

     (b) Debtor agrees to keep the Collateral insured against loss or damage by
fire and extended coverage perils, theft, burglary, and for any or all
Collateral which are vehicles, for risk of loss by collision, and if requested
by Secured Party, against such other risks as Secured Party may reasonably
require. The insurance coverage shall be in an amount no less than the full
replacement value of the Collateral, and deductible amounts, insurers and
policies shall be acceptable to Secured Party. Debtor shall deliver to Secured
Party policies or certificates of insurance evidencing such coverage. Each
policy shall name Secured Party as a loss payee, shall provide for coverage to
Secured Party regardless of the breach by Debtor of any warranty or
representation made therein, shall not be subject to co-insurance, and shall
provide that coverage may not be canceled or altered by the insurer except upon
thirty (30) days prior written notice to Secured Party. Debtor appoints Secured
Party as its attorney-in-fact to make proof of loss, claim for insurance and
adjustments with insurers, and to receive payment of and execute or endorse all
documents, checks or drafts in connection with insurance payments. Secured Party
shall not act as Debtors attorney-in-fact unless Debtor is in default. Proceeds
of insurance shall be applied, at the option of Secured Party, to repair or
replace the Collateral or to reduce any of the Indebtedness.

<PAGE>

5.   REPORTS.

     (a) Debtor shall promptly notify Secured Party of (i) any change in the
name of Debtor, (ii) any relocation of its chief executive offices, (iii) any
relocation of any of the Collateral, (iv) any of the Collateral being lost,
stolen, missing, destroyed, materially damaged or worn out, or (v) any lien,
claim or encumbrance other than Permitted Liens attaching to or being made
against any of the Collateral.

     (b) Debtor will deliver to Secured Party Debtors complete financial
statements, certified by a recognized firm of certified public accountants,
within ninety (90) days of the close of each fiscal year of Debtor. If Secured
Party requests, Debtor will deliver to Secured Party copies of Debtors quarterly
financial reports certified by Debtors chief financial officer, within ninety
(90) days after the close of each of Debtors fiscal quarter. Debtor will deliver
to Secured Party copies of all Forms 10-K and l0-Q, if any, within 30 days after
the dates on which they are filed with the Securities and Exchange Commission.

6.   FURTHER ASSURANCES.

     (a) Debtor shall, upon request of Secured Party, furnish to Secured Party
such further information, execute and deliver to Secured Party such documents
and instruments (including, without limitation, Uniform Commercial Code
financing statements) and shall do such other acts and things as Secured Party
may at any time reasonably request relating to the perfection or protection of
the security interest created by this Agreement or for the purpose of carrying
out the intent of this Agreement. Without limiting the foregoing, Debtor shall
cooperate and do all acts deemed necessary or advisable by Secured Party to
continue in Secured Party a perfected first security interest in the Collateral,
and shall obtain and furnish to Secured Party any subordinations, releases,
landlord, lessor, or mortgagee waivers, and similar documents as may be from
time to time requested by, and in form and substance satisfactory to, Secured
Party.

     (b) Debtor irrevocably grants to Secured Party the power to sign Debtor's
name and generally to act on behalf of Debtor to execute and file applications
for title, transfers of title, financing statements, notices of lien and other
documents pertaining to any or all of the Collateral; this power is coupled with
Secured Party's interest in the Collateral. Debtor shall, if any certificate of
title be required or permitted by law for any of the Collateral, obtain and
promptly deliver to Secured Party such certificate showing the lien of this
Agreement with respect to the Collateral.

     (c) Debtor shall indemnify and defend the Secured Party, its successors and
assigns, and their respective directors, officers and employees, from and
against all claims, actions and suits (including, without limitation, related
attorneys' fees) of any kind whatsoever arising, directly or indirectly, in
connection with any of the Collateral.

7.   DEFAULT AND REMEDIES.

     (a) Debtor shall be in default under this Agreement and each of the other
Debt Documents if:

          (i) Debtor breaches its obligation to pay when due any installment or
other amount due or coming due under any of the Debt Documents;

          (ii) Debtor, without the prior written consent of Secured Party,
attempts to or does sell, rent, lease, mortgage, grant a security interest in,
or otherwise transfer or encumber (except for Permitted Liens) any of the
Collateral;

          (iii) Debtor breaches any of its insurance obligations under Section
4;

          (iv) Debtor breaches any of its other obligations under any of the
Debt Documents and fails to cure that breach within thirty (30) days after
written notice from Secured Party;

          (v) Any warranty, representation or statement made by Debtor in any of
the Debt Documents or otherwise in connection with any of the Indebtedness shall
be false or misleading in any material respect;

          (vi) Any of the Collateral is subjected to attachment, execution,
levy, seizure or confiscation in any legal proceeding or otherwise, or if any
legal or administrative proceeding is commenced against Debtor or any of the
Collateral, which in the good faith judgment of Secured Party subjects any of
the Collateral to a material risk of attachment, execution, levy, seizure or
confiscation and no bond is posted or protective order obtained to negate such
risk;

          (vii) Debtor breaches or is in default under any other agreement
between Debtor and Secured Party;

<PAGE>

          (viii) Debtor or any guarantor or other obligor for any of the
Indebtedness (collectively "Guarantor") dissolves, terminates its existence,
becomes insolvent or ceases to do business as a going concern:

          (ix) If Debtor or any Guarantor is a natural person, Debtor or any
such Guarantor dies or becomes incompetent;

          (x) A receiver is appointed for all or of any part of the property of
Debtor or any Guarantor, or Debtor or any Guarantor makes any assignment for the
benefit of creditors; or

          (xi) Debtor or any Guarantor files a petition under any bankruptcy,
insolvency or similar Law, or any such petition is filed against Debtor or any
Guarantor and is not dismissed within forty-five (45) days.

     (b) If Debtor is in default, the Secured Party, at its option, may declare
any or all of the Indebtedness to be immediately due and payable, without demand
or notice to Debtor or any Guarantor. The accelerated obligations and
liabilities shall bear interest (both before and after any judgment) until paid
in full at the lower of eighteen percent (18%) per annum or the maximum rate not
prohibited by applicable law.

     (c) After default, Secured Party shall have all of the rights and remedies
of a Secured Party under the Uniform Commercial Code, and under any other
applicable law. Without limiting the foregoing, Secured Party shall have the
right to (i) notify any account debtor of Debtor or any obligor on any
instrument which constitutes part of the Collateral to make payment to the
Secured Party, (ii) with or without legal process, enter any premises where the
Collateral may be and take possession of and remove the Collateral from the
premises or store it on the premises, (iii) sell the Collateral at public or
private sale, in whole or in part, and have the right to bid and purchase at
said sale, or (iv) lease or otherwise dispose of all or part of the Collateral,
applying proceeds from such disposition to the obligations then in default. If
requested by Secured Party, Debtor shall promptly assemble the Collateral and
make it available to Secured Party at a place to be designated by Secured Party
which is reasonably convenient to both parties. Secured Party may also render
any or all of the Collateral unusable at the Debtor's premises and may dispose
of such Collateral on such premises without liability for rent or costs. Any
notice that Secured Party is required to give to Debtor under the Uniform
Commercial Code of the time and place of any public sale or the time after which
any private sale or other intended disposition of the Collateral is to be made
shall be deemed to constitute reasonable notice if such notice is given to the
last known address of Debtor at least five (5) days prior to such action.

     (d) Proceeds from any sale or lease or other disposition shall be applied:
first, to all costs of repossession, storage, and disposition including without
limitation attorneys', appraisers', and auctioneers' fees; second, to discharge
the obligations then in default; third, to discharge any other Indebtedness of
Debtor to Secured Party, whether as obligor, endorser, guarantor, surety or
indemnitor; fourth, to expenses incurred in paying or settling liens and claims
against the Collateral; and lastly, to Debtor, if there exists any surplus.
Debtor shall remain fully liable for any deficiency.

     (e) Debtor agrees to pay all reasonable attorneys' fees and other costs
incurred by Secured Party in connection with the enforcement, assertion, defense
or preservation of Secured Party's rights and remedies under this Agreement, or
if prohibited by law, such lesser sum as may be permitted. Debtor further agrees
that such fees and costs shall constitute Indebtedness.

     (f) Secured Party's rights and remedies under this Agreement or otherwise
arising are cumulative and may be exercised singularly or concurrently. Neither
the failure nor any delay on the part of the Secured Party to exercise any
right, power or privilege under this Agreement shall operate as a waiver, nor
shall any single or partial exercise of any right, power or privilege preclude
any other or further exercise of that or any other right, power or privilege.
SECURED PARTY SHALL NOT BE DEEMED TO HAVE WAIVED ANY OF ITS RIGHTS UNDER THIS
AGREEMENT OR UNDER ANY OTHER AGREEMENT, INSTRUMENT OR PAPER SIGNED BY DEBTOR
UNLESS SUCH WAIVER IS EXPRESSED IN WRITING AND SIGNED BY SECURED PARTY. A waiver
on any one occasion shall not be construed as a bar to or waiver of any right or
remedy on any future occasion,

     (g) DEBTOR AND SECURED PARTY UNCONDITIONALLY WAIVE THEIR RIGHTS TO A JURY
TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF THIS
AGREEMENT, ANY OF THE OTHER DEBT DOCUMENTS, ANY OF THE INDEBTEDNESS SECURED
HEREBY, ANY DEALINGS BETWEEN DEBTOR AND SECURED PARTY RELATING TO THE SUBJECT
MATTER OF THIS TRANSACTION OR ANY RELATED TRANSACTIONS, AND/OR THE RELATIONSHIP
THAT IS BEING ESTABLISHED BETWEEN DEBTOR AND SECURED PARTY. THE SCOPE OF THIS
WAIVER IS INTENDED TO BE ALL ENCOMPASSING OF ANY AND ALL DISPUTES THAT MAY BE
FILED IN ANY COURT. THIS WAIVER IS IRREVOCABLE. THIS WAIVER MAY NOT BE MODIFIED
EITHER ORALLY OR IN WRITING. THE WAIVER ALSO SHALL APPLY TO ANY SUBSEQUENT
AMENDMENTS, RENEWALS, SUPPLEMENTS OR MODIFICATIONS TO THIS AGREEMENT, ANY OTHER
DEBT DOCUMENTS, OR TO ANY OTHER DOCUMENTS OR AGREEMENTS RELATING TO THIS
TRANSACTION OR ANY RELATED TRANSACTION. THIS AGREEMENT MAY BE FILED AS A WRITTEN
CONSENT TO A TRIAL BY THE COURT.

<PAGE>

8.   MISCELLANEOUS.

     (a) This Agreement, any Note and/or any of the other Debt Documents may be
assigned, in whole or in part, by Secured Party without notice to Debtor, and
Debtor agrees not to assert against any such assignee, or assignee's assigns,
any defense, set-off, recoupment claim or counterclaim which Debtor has or may
at any time have against Secured Party for any reason whatsoever. Debtor agrees
that if Debtor receives written notice of an assignment from Secured Party,
Debtor will pay all amounts payable under any assigned Debt Documents to such
assignee or as instructed by Secured Party. Debtor also agrees to confirm in
writing receipt of the notice of assignment as may be reasonably requested by
assignee.

     (b) All notices to be given in connection with this Agreement shall be in
writing, shall be addressed to the parties at their respective addresses set
forth in this Agreement (unless and until a different address may be specified
in a written notice to the other party), and shall be deemed given (i) on the
date of receipt if delivered in hand or by facsimile transmission, (ii) on the
next business day after being sent by express mail, and (iii) on the fourth
business day after being sent by regular, registered or certified mail. As used
herein, the term "business day" shall mean and include any day other than
Saturdays, Sundays, or other days on which commercial banks in New York, New
York are required or authorized to be closed.

     (c) Secured Party may correct patent errors and fill in all blanks in this
Agreement or in any Collateral Schedule consistent with the agreement of the
parties.

     (d) Time is of the essence of this Agreement. This Agreement shall be
binding, jointly and severally, upon all parties described as the "Debtor" and
their respective heirs, executors, representatives, successors and assigns, and
shall inure to the benefit of Secured Party, its successors and assigns.

     (e) This Agreement and its Collateral Schedules constitute the entire
agreement between the parties with respect to the subject matter of this
Agreement and supersede all prior understandings (whether written, verbal or
implied) with respect to such subject matter. THIS AGREEMENT AND ITS COLLATERAL
SCHEDULES SHALL NOT BE CHANGED OR TERMINATED ORALLY OR BY COURSE OF CONDUCT, BUT
ONLY BY A WRITING SIGNED BY BOTH PARTIES. Section headings contained in this
Agreement have been included for convenience only, and shall not affect the
construction or interpretation of this Agreement.

     (f) This Agreement shall continue in full force and effect until all of the
Indebtedness has been indefeasibly paid in full to Secured Party. The surrender,
upon payment or otherwise, of any Note or any of the other documents evidencing
any of the Indebtedness shall not affect the right of Secured Party to retain
the Collateral for such other Indebtedness as may then exist or as it may be
reasonably contemplated will exist in the future. This Agreement shall
automatically be reinstated if Secured Party is ever required to return or
restore the payment of all or any portion of the Indebtedness (all as though
such payment had never been made).

     (g) THIS AGREEMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER
SHALL IN ALL RESPECTS BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH, THE
INTERNAL LAWS OF THE STATE OF CONNECTICUT (WITHOUT REGARD TO THE CONFLICT OF
LAWS PRINCIPLES OF SUCH STATE), INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY
AND PERFORMANCE, REGARDLESS OF THE LOCATION OF THE EQUIPMENT.

     IN WITNESS WHEREOF, Debtor and Secured Party, intending to be legally bound
hereby, have duly executed this Agreement in one or more counterparts, each of
which shall be deemed to be an original, as of the day and year first aforesaid.

SECURED PARTY:                                          DEBTOR:

General Electric Capital Corporation                    Deltagen, Inc.

By: /s/ Barbara B. Kaiser                               By: /s/ William Matthews
    ----------------------                                  --------------------
Name: Barbara B. Kaiser                                 Name: William Matthews
Title: EVP/General Manager                              Title: CEO

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