Breeding report of a new early-maturing table grape cultivar Ningpu No. 1

Ningpu No. 1 is a new pink early-maturing table grape variety with excellent appearance. The variety was derived from a cross between the pink, hard meat, storable, late-maturing, and largegrain Red-globe (♀) and the yellow-green, large-grain, high-yield, early-maturing Victoria ( ) in 2014 at an experimental field. Hybrid seeds were harvested in October 2014. The seeds were sown in nutrient bags at the end of January 2015. The hybrid seedlings entered the fruiting period in 2017. It was initially selected for early-maturing excellent single plant coded as WH-14-10, and canes were collected and propagated through self- rooted cuttings after the autumn leaves fell. Planting started in the arch shed double selection nursery for group observation testing and variety comparison experiment in May 2018. This variety has uniformly colored berry grains and good stability and yield. The claster compactness is medium, and the cluster shape is conical. The berry is long elliptic, and the average berry mass is 9.56 g. The thickness of skin is medium, the color of skin is rose, the thickness of bloom is medium, the astringency of skin is absent, the berry degree of flesh firmness is slight crispy, there is no particular flavor, the color of flesh is absent or very light, the berry aroma is little, and the number of seeds per grain is 1- 3. The flower is hermaphrodite. The mature leaves are extremely small in size, the leaf shape is pentagonal, the number of lobes is five, the shape of petiole sinus is widely open, the serrated edge of leaves is long. The ratio of mature petiole length to the main vein length is extremely large, the anthocyanin coloration of the main veins on the upper side is absent or very weak, the prostrate hairs density between veins of the lower side is none or very sparse, the erect hairs density on main veins of lower side is sparse, the bubbly protrusion on the upper side is none or very sparse. The vine gesture (habit) is semierect, the tendril distribution is discontinuous, the colour of ventral side of internodes is green, the colour of dorsal side of internodes is green with red blush, the erect hairs density on internodes is absent or very sparse. The young leaf color of the upper side is red bronze, the gloss on upper side is present, the prostrate hairs between veins on lower side are absent or very sparse, the erect hairs between veins on lower side are absent or very sparse. The main color of woody canes is yellow brown. The soluble solids content is 19.5%, the total acid content is 0.28%, the taste is sweet, and the table grape quality is high. The vine growth vigor is strong, the percentage of bud break is 96.2%, the percentage of bearing canes is 61.5%, the bearing coefficient is 0.85, the position of first inflorescence is borne between the 3rd and 6th nodes of the bearing cane, and the cluster number per bearing cane is 1.37. It requires about 110-120 days from bud break to berry maturity. Under the condition of single-layer film arch shed cultivation in Ningxia, the bud break appears in early and middle March, flowering happens in late April, and berry begins to grow in early July. It can be cultivated in areas suitable for Red-globe and Victoria table grapes and similar areas, as well as protected cultivation.