the following is a detailed description of plants in the new variety , jpd - 001 , grown outdoors near mcfarland , calif ., on their own rootstock . the color - terminology used herein is in accordance with the royal horticultural society colour code . jpd - 001 is a large berry - size , white , seedless grape maturing for harvest in approximately the third week of august in the san joaquin valley of central calif . vineyard .— the vineyard is trained to a quadrilateral cordon on a wood trellis . the approximate height of the trellis is 114 cm with cordons resting at approximately 112 cm . the width between the cordons is approximately 56 cm . size .— circumference of 16 . 5 cm and length of 76 cm from graft union to the cordons . surface texture .— rough and shaggy . color of bark .— ( one year or older wood ) gry / g 197 - b . cane length .— 1 . 65 meters . mature / lignified cane color .— gry / b n199 - d . mature / lignified cane texture .— smooth . internode length .— 8 to 10 . 5 cm . size .— 102 cm in length and 11 cm in circumference . surface texture .— slightly tough and shaggy . color .— ( one year old wood ) gry / g 197 - b . lenticels .— 0 . size .— 12 to 17 cm . density .— moderately dense . form .— pentagonal . leaf base .— sagittate . texture .— upper : smooth . lower : glabrous . color .— upper : g 141 - b . lower : g 138 - a . leaf vein .— color : y / g 144 - b . thickness : 1 . 5 to 2 mm . presence of anthocyanin : absent . leaf margin .— serrated / toothed ; slightly undulating . glands .— absent . petiole .— length : 9 to 11 cm . thickness : 2 to 4 cm . erect hairs on petiole : absent . color : y / g 144a but with streaks of gry / r 180 - a on side exposed to sun . petiole sinus .— general shape : open ( ovate ). stem glands .— absent . stipules .— absent . lobes .— 5 . teeth .— serration length : 0 . 33 to 1 . 5 mm ; width 0 . 5 to 1 . 0 mm . ratio of length / width : about 1 : 1 . size .— large ; approximately 18 cm in length at full bloom . shape .— long , conical . number borne per shoot .— one or two . number borne per vine .— 45 to 55 . general .— flower sex : perfect . flower buds .— size : 5 to 7 mm in width and 7 to 8 mm in length . shape : triangular . fruitfulness : good . flowers .— pedicle length : 3 mm . calyptra color : g 134 - a . ovary : length 2 mm ; width 1 . 5 mm ; color g 135 - b . pistil : length 1 . 5 mm . anthers : length 0 . 5 mm ; color y 6 - c . filament : length 1 . 0 mm ; color g 142 - c . date of visible berries .— approximately may 14 . maturity .— ripening approximately august 27 . solids .— 17 . 5 to 18 . 0 brix at desired maturity . acids .— 5 . 0 to 7 . 5 ta . sugar / acid ratio .— 2 . 5 : 1 to 3 . 5 : 1 . seeds ( number , characteristics ).— two aborted , non - lignified seeds due to embryo abortion . capstem .— normal size ; color y / g 145 - a . berry weight .— average weight ; large natural berry size , around 6 g to 7 g ; with size augmentation , berry weight increases to around 9 g to 15 g . juice color .— y / g 145 - b . cluster .— large , loose , conical cluster with an average weight of 2 to 3 lbs . stem size ( general characteristics ).— strong stem ; not prone to breaking , with average thickness . berry size ( number / bunch ).— large natural berry size of around 19 mm ; with size augmentation treatments , berry size increases to 23 mm to 28 mm . skin .— berry skin is of average thickness , and not prone to cracking . seed trace .— slight trace of non - lignified seed due to embryo abortion . flesh color .— y / g 149 - d ; very nice eating quality and crunchy texture . flavor and aroma similar to thompson seedless , but with much crisper texture . use .— table . although the new variety of grapevine described herein possesses the described characteristics noted above as a result of the growing conditions prevailing in or around mcfarland , in the central san joaquin valley of calif ., united states of america , it is to be understood that variations of the usual magnitude and characteristics incident to changes in growing conditions , training , irrigation , fertilization , pruning , pest control , climatic variation , and the like , are to be expected .
a new and distinct variety of grapevine denominated ‘ jpd - 001 ’, which is characterized by its large natural berry size , increased responsiveness to berry size augmentation , and lack of a noticeable seed trace , is disclosed .