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Exhibit 10.16 SEPARATION AGREEMENT This SEPARATION AGREEMENT (this Agreement) is dated as of January 22, 2005, and is
entered into by and among Seminis, Inc., a Delaware corporation (the Company), SVS
Mexicana, S.A. de C.V. (the Mexican Subsidiary) and Alfonso Romo Garza
(Executive). WHEREAS, Executive and the Company are parties to an employment agreement between Executive
and Seminis Merger Corp. (which subsequently merged with and into the Company), dated May 30, 2003
(the Employment Agreement), pursuant to which Executive serves as President and Chief
Executive Officer of the Company; and WHEREAS, simultaneously with the execution and delivery of this Agreement, Monsanto Company
(Monsanto), Monsanto Sub, Inc., a direct subsidiary of Monsanto (Merger Sub),
and the Company are entering into an Agreement and Plan of Merger (the Merger Agreement),
pursuant to which Merger Sub is to merge with and into the Company (the Merger); and WHEREAS, in connection with the Merger, the Company and Executive have agreed that Executives
employment will be terminated as of the Closing Date (as such term defined in the Merger
Agreement); and WHEREAS, subject to the terms and conditions contained herein, Executive and the Company have
mutually agreed to embody in this Agreement the terms and conditions applicable to Executives
termination of employment by the Company. NOW, THEREFORE, in consideration of the premises and mutual covenants contained herein and for
other good and valuable consideration, the receipt and sufficiency of which are mutually
acknowledged, the Company and Executive hereby agree as follows: Section 1. Termination Date. Executives termination of employment with the Company
shall be effective on the Closing Date. Effective on the Closing Date, Executive hereby resigns
from any and all directorships, committee memberships or any other positions he holds with the
Company or any of its affiliates. Section 2. Company Property. On the Closing Date, Executive shall return to the
Company all Company-owned property in his possession on such date, including, but not limited to,
all Company credit cards, hand books, work manuals or procedure books, client or customer
documents, tools, computers, or other Company equipment and/or materials maintained by Executive. Section 3. Termination Benefits. Subject to Section 5 below: (a) Subject to Executives execution and delivery of the Release (as defined in Section 5
below), on the Closing Date, the Mexican Subsidiary shall pay Executive a lump-sum payment equal to
$10,400,000, in satisfaction of the Companys cash obligations under Section 6.1 of the Employment
Agreement.




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(b) In addition to the cash payment provided in subsection (a) above, the Company shall
provide to Executive and his covered dependents continued coverage under any employee medical plans
or programs provided to Executive and his covered dependents pursuant to Section 4.1 of the
Employment Agreement until the earlier of the fifth anniversary of the Closing Date or the date on
which Executive becomes entitled to receive at least comparable medical coverage under another
employers medical benefit program; provided, however, that Executive shall continue to be required
to pay any applicable premiums of a participating employee in such plans and programs. Section 4. Full Settlement; Compensation and Benefit Plans. The Company shall pay to
Executive all amounts that it is required to pay to or with respect to Executive under the terms of
the Merger Agreement, including, without limitation, amounts described in Sections 3.10 and 6.8 of
the Merger Agreement. Except as provided in the last sentence of this Section 4, the amounts paid
in accordance with the preceding sentence and the amounts paid under Section 3 above shall
constitute full settlement and satisfaction with respect to all obligations and liabilities of the
Company and its affiliates, officers, directors, trustees, employees, shareholders, representatives
and/or agents to Executive with respect to his employment with the Company, including, without
limitation, all claims for wages, salary, vacation pay, draws, incentive pay, bonuses, stock (other
than stock owned by Executive on the date of this Agreement) and stock options, commissions,
severance pay and any and all other forms of compensation or benefits. Except as otherwise
specifically provided in this Agreement, by law or pursuant to the express provisions of any
Company employee benefit plan, Executives participation in all employee benefit plans and
executive compensation plans and practices of the Company shall terminate on the Closing Date and,
without duplicating amounts included in the payment made under Section 3 above, Executive shall be
entitled to receive any benefits or rights provided to a terminating executive in accordance with
the terms of any such plan. Section 5. Release of Claims. In consideration of the payments provided in Section 3
above, on the Closing Date, Executive shall execute the release agreement substantially in the form
attached hereto as Exhibit A (the Release). Section 6. Taxes. The payments due to Executive under this Agreement shall be
subject to reduction to satisfy all applicable withholding tax obligations under Mexican law. Section 7. Non-Admission. Executive expressly acknowledges that this Agreement does
not constitute an admission by the Company of any violation of any employment law, regulation,
ordinance, or administrative procedure, or any other federal, state, or local law, common law,
regulation or ordinance relating to Executives employment or termination of employment. Section 8. Continuing Obligations of Executive. (a) The provisions of both (a) Section 12 (other than Sections 12.3 and 12.4) of the
Employment Agreement, and (b) the Noncompetition and Nonsolicitation Agreement, executed by
Executive on a date even herewith, shall continue to survive in accordance with the terms thereof. -2-




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(b) Following the Closing Date and for a period of 24 months, Executive shall make himself
reasonably available at the request of Monsanto to provide Executives knowledge, experience and
skill with respect to all matters involving the business of the Company and its affiliates with
which Executive is personally familiar, including, without limitation, assisting with existing or
future investigations, proceedings, litigations or examinations involving the Company or any of its
affiliates relating to periods which Executive was employed by the Company; provided, however, that
Executive shall be available for a period of no more than five days per calendar quarter, subject
to not interfering with Executives work schedule. For each day, or part thereof, that Executive
provides assistance to the Company as contemplated hereunder, the Company shall pay Executive an
amount equal to (x) divided by (y), where (x) equals the Executives annual base salary as in
effect immediately prior to the Closing Date, and (y) equals 365. In addition, upon presentment of
satisfactory documentation, the Company will reimburse Executive for reasonable out-of-pocket
travel, lodging and other incidental expenses he incurs in providing such assistance. Section 9. Opportunity for Advice. By signing this Agreement, Executive acknowledges
that with the advice of the Company, he has had a reasonable opportunity to consider advice from
his legal counsel. Fully understanding these terms, Executive is entering into this Agreement
knowingly and voluntarily. Section 10. Entire Agreement. This Agreement, together with the agreements referenced
herein, represents the entire agreement of the parties with respect to the termination of
Executives employment. Except as specifically provided herein, this Agreement shall supersede the
Employment Agreement in all respects effective as of the Closing Date. Section 11. Governing Law; Venue. (a) This Agreement shall be governed by and construed in accordance with the laws of the State
of Delaware, without regard to the principles of conflicts of law thereof. (b) Executive hereby agrees and consents to be subject to the exclusive jurisdiction of the
courts of the State of Delaware sitting in the County of New Castle and the United States District
Court for the State of Delaware in any suit, action or proceeding seeking to enforce any provision
of, or based on any matter arising out of or in connection with, this Agreement. Executive hereby
irrevocably waives, to the fullest extent permitted by law, (i) any objection that he may now or
hereafter have to laying venue of any suit, action or proceeding brought in such courts, and (ii)
any claim that any suit, action or proceeding brought in such courts has been brought in an
inconvenient forum. Section 12. Severability. In the event that any provision or portion of this
Agreement shall be determined to be invalid or unenforceable for any reason, in whole or in part,
the remaining provisions of this Agreement shall be unaffected thereby and shall remain in full
force and effect to the fullest extent permitted by law. Section 13. Counterparts. This Agreement may be executed in one or more counterparts,
each of which shall be deemed an original and all of which together shall be considered one and the
same agreement. -3-




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Section 14. Effectiveness. This Agreement shall become effective upon the Closing
Date (as defined in the Merger Agreement); provided, however, that this Agreement shall be of no
further force or effect upon any termination of the Merger, in which event the Employment Agreement
will continue in full force and effect. Section 15. Third Party Beneficiary. The parties acknowledge that Merger Sub is
intended to be a third party beneficiary of this Agreement, and this Agreement cannot be amended
without the prior written consent of Merger Sub. Section 16. Successors and Assigns. This Agreement shall be binding upon, inure to
the benefit of and be enforceable by the Company and Executive and their respective heirs, legal
representatives, successors and assigns. Section 17. Beneficiaries. Executive shall be entitled to select (and change, to the
extent permitted under any applicable law) a beneficiary or beneficiaries to receive any
compensation or benefit payable hereunder following Executives death, and may change such
election, in either case by giving the Company written notice thereof. In the event of Executives
death or a judicial determination of his incompetence, reference in this Agreement to Executive
shall be deemed, where appropriate, to refer to his beneficiary, estate or other legal
representative. [Signatures appear on following page.] -4-




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IN WITNESS WHEREOF, the parties have executed this Agreement as of the date and year first
above written. Alfonso Romo Garza Seminis, Inc. By: 
Name:
Title: SVS Mexicana, S.A. de C.V. By:
Name:
Title: -5-




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EXHIBIT A RELEASE AGREEMENT This Release Agreement (Release) is entered into as of this day of (hereinafter Execution
Date), by and between Alfonso Romo Garza (hereinafter Employee), and Seminis, Inc. and its
successors and assigns (hereinafter, the Company). Employee and the Company are sometimes
collectively referred to herein as the Parties. 1. Employees employment with the Company is terminated effective as of the Closing Date (as
defined in the Separation Agreement (the Separation Agreement) to which this Release attached as
Exhibit A) (hereinafter Termination Date). 2. The Company has agreed to provide Employee the severance payments, awards and benefits provided
for in the Separation Agreement. 3. Employee represents that he/she has not filed, and will not file, any complaints, lawsuits,
administrative complaints or charges relating to his/her employment with, or resignation from, the
Company. In consideration of the severance payments, awards and benefits described in Section 2,
Employee, for himself/herself and for his/her heirs, administrators, representatives, executors,
successors and assigns (collectively, Releasers) agrees to release the Company, its subsidiaries
and affiliates, and their respective parents, direct or indirect subsidiaries, divisions,
affiliates and related companies or entities, regardless of its or their form of business
organization, any predecessors, successors, joint ventures, and parents of any such entity, and any
and all of their respective past or present shareholders, partners, directors, officers, employees,
consultants, independent contractors, trustees, administrators, insurers, agents, attorneys,
representatives and fiduciaries, including without limitation all persons acting by, through, under
or in concert with any of them, in each instance in their capacities as representatives of the
Company (collectively, the Released Parties), from any and all claims, charges, complaints,
causes of action or demands of whatever kind or nature that Employee and his/her Releasers now have
or have ever had against the Released Parties whether known or unknown, including but not limited
to: wrongful or tortious termination; constructive discharge; implied or express employment
contracts and/or estoppel; discrimination and/or retaliation under any federal, state or local
statute or regulation specifically including any claims Employee may have under the Fair Labor
Standards Act, the Americans with Disabilities Act, Title VII of the Civil Rights Act of 1964, as
amended, and the Family and Medical Leave Act; the discrimination or other employment laws of the
State of California; any claims brought under any federal or state statute or regulation for
nonpayment of wages or other compensation, including grants of stock options or any other equity
compensation; and libel, slander, or breach of contract, other than the breach of this Release.
This Release specifically excludes claims, charges, complaints, causes of action or demand that
post-date the Termination Date. Notwithstanding anything herein to the contrary, expressly
excluded from this Release are any claims (i) for payments, awards and benefits under the
Separation Agreement, (ii) under the Merger Agreement, including, without limitation, amounts
described in Sections 3.10 and 6.8 of the Merger Agreement, (iii) for benefits provided under
Company benefit plans, incentive plans or equity plans (including, but not limited to, stock
options, restricted stock units and stock grants) or (iv) for indemnification and any applicable
directors and officers liability insurance coverage to which Employee was entitled with regard to
service as an officer of the Company.




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4. Employee agrees to keep the terms of this Release in strict confidence, but he/she may disclose
the terms of this Release and provide a copy hereof to his/her immediate family and his/her
financial and legal advisors. 5. Employee warrants that no promise or inducement has been offered for this Release other than as
set forth herein and in the Separation Agreement and that this Release is executed without reliance
upon any other promises or representations, oral or written. Any modification of this Release must
be made in writing and be signed by Employee and the Company. 6. If any provision of this Release or compliance by Employee or the Company with any provision of
the Release constitutes a violation of any law, or is or becomes unenforceable or void, then such
provision, to the extent only that it is in violation of law, unenforceable or void, will be deemed
modified to the extent necessary so that it is no longer in violation of law, unenforceable or
void, and such provision will be enforced to the fullest extent permitted by law. If such
modification is not possible, such provision, to the extent that it is in violation of law,
unenforceable or void, will be deemed severable from the remaining provisions of this Release,
which provisions will remain binding on both Employee and the Company. This Release is governed by,
and construed and interpreted in accordance with the laws of the State of Delaware, without regard
to principles of conflicts of law. Employee hereby agrees and consents to be subject to the
exclusive jurisdiction of the courts of the State of Delaware sitting in the County of New Castle
and the United States District Court for the State of Delaware
this Release. This Release represents the entire understanding with the Parties with respect to
subject matter herein, no oral representations have been made or relied upon by the Parties. 7. EMPLOYEE ACKNOWLEDGES AND AGREES THAT HE/SHE HAS CAREFULLY READ AND VOLUNTARILY SIGNED THIS
RELEASE, THAT HE/SHE HAS HAD AN OPPORTUNITY TO CONSULT WITH AN ATTORNEY OF HIS/HER CHOICE, AND THAT
HE/SHE SIGNS THIS RELEASE WITH THE INTENT OF RELEASING THE RELEASED PARTIES TO THE EXTENT SET FORTH
HEREIN. 8. In the event that any provision of this Release should be held to be invalid or unenforceable
each and all of the other provisions of this Release shall remain in full force and effect. any
provision of this Release is found to be invalid or unenforceable, such provision shall be modified
as necessary to permit this Release to be upheld and enforced to the maximum extent permitted by
law. 9. Employee acknowledges that he/she is familiar with the provisions of California Civil Code
Section 1542, which provides as follows: A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS WHICH THE
CREDITOR DOES NOT KNOW OR SUSPECT TO EXIST IN HIS/HER FAVOR AT THE TIME OF EXECUTING THE RELEASE
WHICH IF KNOWN BY HIM/HER MUST HAVE MATERIALLY AFFECTED HIS/HER SETTLEMENT WITH THE DEBTOR.
EMPLOYEE BEING AWARE OF SAID CODE SECTION, HEREBY EXPRESSLY WAIVES ANY RIGHT HE/SHE MAY HAVE THERE
UNDER, AS WELL AS UNDER ANY OTHER STATUTES OR COMMON LAW PRINCIPLES OF SIMILAR EFFECT.
Employee -2-




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being aware of said code section, hereby expressly waives any right he/she may have thereunder, as
well as under any other statutes or common law principles of similar effect. 10. This Release inures to the benefit of the Company and its successors and assigns. AGREED AND ACCEPTED: Employee: Alfonso Romo Garza
Dated: Seminis, Inc. By: 
Name:
Title:
Dated: -3-