薄壳山核桃新品种‘亚优YLC21号’

A New Carya illinoensis Cultivar‘Yayou YLC21’

‘亚优YLC21号’是从薄壳山核桃实生大树中选育出的新品种,母树位于浙江省杭州市余杭区。果实偏大,坚果平均质量9.46 g,纵径38.85 mm,横径21.58 mm,果形指数1.80,出仁率46.72%;核仁含脂肪64.9%,蛋白质86.70 mg·g^(-1)。植株生长旺盛,5年生平均树高4.50 m,冠幅3.77 m×4.75 m,地径8.17 cm,丰产,稳产,12年生树平均坚果产量1714.5 kg·hm^(-2),综合性状优。

‘Yayou YLC21’is a new Carya illinoensis cultivar bred from the large seedlings of pecan,whose mother tree is located in Yuhang District,Hangzhou City,Zhejiang Province.The fruit is large;the average mass of nut is 9.46 g;the longitudinal diameter is 38.85 mm;the lateral diameter is 21.58 mm;the fruit shape index is 1.80.The kernel yield is 46.72%;and the kernel contains 64.9%fat and 86.70 mg·g^(-1) protein.The plant grows vigorously,with 5-year average tree height of 4.50 m,crown width of 3.77 m×4.75 m,and ground diameter of 8.17 cm.The yield is high and stable.The average nut yield of the 12-year-old tree is 1714.5 kg·hm^(-2),with excellent comprehensive characteristics.