关中地区核桃主要优良品种授粉树选择

Selection of Pollinizer for the Improved Walnut Varieties in Guanzhong Plain

在杨凌观察、分析了10个关中地区主要核桃品种的花期和花期相遇情况,发现供试10个核桃品种雄花花期在3月下旬到4月中旬,大多在4月上旬,雌花花期4月上中下旬到5月初;契克雌花早于雄花开放,为雌先型品种,其它9个品种雄花早于雌花开放,为雄先型品种;为供试品种提出了授粉树和授粉对象树品种。

Ten improved walnut varieties cultivated in Guanzhong Plain were analyzed in terms of their male and female flowering period.It was found that the male flowers from late March to middle of April,whereas most of female trees flower from early April to early of May.The male plants of Qieke flower later than the female plants,and the rest of nine verities had the vice verse.