鲜食核桃新品种‘中核4号’

A New Fresh-eating Walnut Cultivar ‘Zhonghe 4’

‘中核4号’是从新疆阿克苏地区温宿县收集当地核桃优株资源,通过优系筛选,高接观察,经过10年选育出的核桃鲜食新品种。树势较强,枝条节间短而粗,以短果枝结果为主。属雌先型。坚果8月中下旬成熟。果实近圆形,壳厚0.30 mm,平均坚果质量7.6 g,出仁率高达92.1%。核仁饱满,品质好,适合鲜食。苗木定植后第4年平均株结果 302个,平均株产干果2.30 kg,产量2 850.0 kg·hm-2。

‘Zhonghe 4＇is a new fresh-eating walnut cultivar bred from local outstanding walnut resources in Wensu County,Aksu area,Xinjiang,through good strain selection and top grafting observation for 10 years. It has the potential character of strong tree vigor,short internodes and thick branches. The cultivar mainly bore on the short fruit spur. The female flowers open firstly. The mature period is mid-to-end of August. The fruit shape is near round. The shell thickness is 0.30 mm. Kernel rate is as high as 92.1%. Besides,it has a full kernel,fragrant flavor and good quality. It is very suitable for fresh eating. The average amount of single plant is 302 after 4 years,then the average weight of dried fruit is 2.30 kg,so the yield is up to 2 850.0 kg · hm^-2.