Patent Publication Number: US-PP33153-P2

Title: Dragon fruit plant named ‘DF14’

Description:
Genus and species plant named:  Hylocereus undatus.    
     Variety denomination: ‘DF14’. 
     BACKGROUND OF THE INVENTION 
     The plant resulted from selection among a population of seedlings derived from a controlled cross carried out in 2013 between ‘RF’ (seed parent) (not patented) and ‘LD5’ (pollen parent) (not patented) in Tien Giang, Viet Nam. ‘DF14’ was identified in 2016 as having potential as a new variety due to its attractive fruit appearance, good eating quality and canker tolerance. ‘DF14’ was first asexually propagated by cuttings in 2017, in Tien Giang, Viet Nam. The resulting plants were planted in clonal trials and underwent further evaluation. The plants were subsequently found to be true to type demonstrating that the characteristics of the new variety are stable and transmitted without change through succeeding propagations. 
     SUMMARY OF THE INVENTION 
     ‘DF14’ is characterized by its attractive medium sized fruit with white flesh and excellent flavor; pink strip under the skin; dark pink to red skin color and tolerance to canker ( Neoscytalidium dimidiatum ). 
     Asexual reproduction of this new variety by cuttings and in vitro shows that the aforementioned characteristics are true to form and are established and transmitted through succeeding propagation. 
     COMPARISON WITH PARENTAL AND COMMERCIAL VARIETIES 
     
       
         
           
               
             
               
                 TABLE 1 
               
             
            
               
                   
               
               
                 Comparison table between female parent and variety 
               
            
           
           
               
               
               
            
               
                 Characteristic 
                 ‘RF’ 
                 ‘DF14’ 
               
               
                   
               
               
                 Fruit length 
                 Short, average 78 mm 
                 Medium, average 98 mm 
               
               
                 Fruit number 
                 Many, average 29 
                 Few, average 18 
               
               
                 of bracts 
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 2 
               
             
            
               
                   
               
               
                 Comparison table between male parent and variety 
               
            
           
           
               
               
               
            
               
                 Characteristic 
                 ‘LD5’ 
                 ‘DF14’ 
               
               
                   
               
               
                 Fruit length of 
                 Long, average 66 mm 
                 Medium, average 44 mm 
               
               
                 apical bracts 
                   
                   
               
               
                 Color of flesh 
                 Near light pink, 54A 
                 Near white, NN155D 
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 3 
               
             
            
               
                   
               
               
                 Comparison table between commercial variety ‘BT’ 
               
               
                 (not patented) and variety 
               
            
           
           
               
               
               
            
               
                 Characteristic 
                 ‘BT’ 
                 ‘DF14’ 
               
               
                   
               
               
                 Fruit length 
                 Long, average 122 mm 
                 Medium, average 98 mm 
               
               
                 Fruit width 
                 Broad, average 84 mm 
                 Medium, average 65 mm 
               
               
                   
               
            
           
         
       
     
    
    
     
       BRIEF DESCRIPTION OF PHOTOGRAPHS 
       The accompanying photographs show typical specimens of the tree, foliage and fruit of the new variety as depicted in colors as nearly true as is reasonably possible to make the same in a color illustration of this character. 
         FIG. 1 : ‘DF14’ cut fruit showing pink strip under the skin. 
         FIG. 2 : ‘DF14’ cut fruit. 
         FIG. 3 : ‘DF14’ whole fruit. 
         FIG. 4 : ‘DF14’ fruit on two-year-old plant. 
     
    
    
     DETAILED DESCRIPTION 
     The following is a description of the new variety with color terminology in accordance with The Royal Horticultural Society Colour Charts (R.H.S.C.C.) 2015 edition. 
     The specimens described were grown in Tien Giang, Viet Nam. The observations were made in the 2018-2020 season on 1-2-year-old plants.
     Plant:
             Form .—Drooping.     Vigour .—Strong.     Habit .—Climbing cactus.       
       Young stem:
             Reddish color .—Weak intensity.       
       Stem: Observation made on mature stems segment at end of year&#39;s growth.
             Shape .—Three broad thin ribs.     Length of segment .—Medium, average 932 mm.     Width .—Medium, average 47 mm.     Waxiness .—Weak.     Texture of surface .—Smooth.     Distance between areoles .—Long, average 58 mm.     Arch height .—Medium, average 6 mm.     Margin of rib .—Convex.     Intensity of grey color of areoles .—Dark intensity.       
       Areoles and spins: Observations made on intact mature stems.
             Number of spines .—Medium, average 3.     Spine length .—Medium, average 4 mm.     Spine main color .—Near dark grey 201B.       
       Flower bud: Observation made 17 days after flower bud burst.
             Shape .—Ovate.     Shape at apex .—Acute.     Color .—Near light green 144B.     Length of pericarpel .—Medium, average 39 mm.     Width of pericarpel .—Medium, average 29 mm.     Length of perianth .—Medium, average 28 mm.       
       Flower: Observations made at full flower opening.
             Intensity of red color of bract .—Weak intensity.     Shape .—Bell shaped.     Petal color .—Near white NN155D.     Sepal main color .—Near light green N144D.     Sepal pattern of secondary color .—None.     Length of style .—Medium, average 25 mm.     Number of stigma lobes .—Many, average 26.3 mm.     Color of stigma lobe .—Cream.     Position of anthers in relation to stigma .—Same level to above.     Flowering time .—Early April; nocturnal; ‘DF14’ starts flowering earlier than commercial cultivars such as ‘LD1’ and ‘LD5’.       
       Fruit: Observations made on 5 intact fruit fully mature for consumption 3 to 5 days after first color change.
             Length .—Medium, average 98 mm.     Width .—Medium, average, 65 mm.     Weight .—Medium, 255 g.     Ratio length/width .—Medium.     Number of bracts .—Few, average 18.     Length of apical bracts .—Medium, average 44 mm.     Position of bracts towards the peel .—Strongly held out, average 3 mm.     Main color of middle bracts .—Near light green 144A.     Width of the base of the bracts .—Medium, average 29 mm.     Thickness of peel .—Thick, average 2 mm.     Color of peel  ( excluding bracts ).—Near light pink, 51B.     Color of flesh .—Near white, NN155D.     Sweetness .—Medium, brix 16.7.     Apical cavity .—Medium, average 21 mm.     Seed size .—Small to medium.     Harvest .—Mid May to the end of November.       
       Use: Fresh market.
             Disease .—Tolerant to canker  Neoscytalidium dimidiatum.