金丝小枣新品种‘曙光5号’和‘曙光6号’的选育

Breeding of New Jinsixiaozao Varieties‘Shuguang No.5’and‘Shuguang No.6’

‘曙光5号’和‘曙光6号’金丝小枣是从枣生产果园群体中选育出的良种。2个品种的果实均为大果型,深红色,有光泽,抗裂果,‘曙光5号’单果质量12.64g,可食率95.08%,鲜枣可溶性固形物含量37.7%,维生素C含量3.21mg·g^(-1),总糖含量24.6%,制干率54.6%;‘曙光6号’单果质量12.25g,可食率95.13%,鲜枣可溶性固形物含量36.9%,维生素C含量3.07mg·g^(-1),总糖含量25.3%,制干率55.1%。‘曙光5号’和‘曙光6号’在沧州区域物候期相同,萌芽期正常在4月中旬,始花期6月上中旬,6月中下旬进入盛花期,白熟期在9月下旬,10月中旬成熟,11月中下旬为落叶期。适合在河北省金丝小枣适宜生长区域栽培。

‘Shuguang No.5’and‘Shuguang No.6’Jinsixiaozao were selected from the population of jujube production orchard.The fruits of these two cultivars are of large fruit type,with deep red luster and resistance to fruit cracking.‘Shuguang No.5’has a single fruit weight of 12.64g,an edible rate of 95.08%,a soluble solid content of 37.7%,a vitamin C content of 3.21mg·g-1,and a total sugar content of 24.6%,the drying rate of 54.6%.‘Shuguang No.6’has a single fruit weight of 12.25g,an edible rate of 95.13%,a soluble solid content of 36.9%,a vitamin C content of 3.07mg·g-1,a total sugar content of 25.3%,a drying rate of 55.1%.‘Shuguang No.5’and‘Shuguang No.6’have the same phenological period in the Cangzhou region,the germination period is normal in the middle of April,the initial flowering period is in the middle of June,and the peak flowering period is in the middle and late of June,and the white ripening period is in the late September and the middle of October,the middle and late November is the defoliation stage.It is suitable to be cultivated in the suitable growing region of Jinsixiaozao in Hebei Province.