绿香、香玲、元林核桃落花落果及果实的生长发育

Research of Early Walnut Fallen Petal Full-drop and Fruit Growth of Lvxiang,Xiangling,YuanLin

在山东泰安地区对3个核桃早实品种的坐果和果实生长发育过程进行了系统观测,分析了早实核桃落花落果的原因。核桃落果现象主要发生在两个阶段,即核桃青果发育开始前落果和核桃青果发育开始后落果;核桃青果迅速膨大期发生在5月初至6月初,硬核期发生在6月中旬至7月上旬,核桃果仁充实期发生在7月上旬至8月底,核桃果实采收期为8月底至9月初,各阶段具体时间因品种而异;在核桃青果内部结构发育程度上,绿香要早于元林7天左右,香玲早于元林2～4天。

Three kinds of walnut fruit drop phenomenon of early and the flower and fruit drop early walnut reasons were studied and analyzed. Walnut fruit drop a phenomenon that occurs in two main phases： before the development of walnut fruit development and walnut fruit drop after the start of fruit drop. The rapid expansion of walnut green fruit in early May to around early June; hard core of the place in mid -June to July were early; walnut kernel filling period early in July to the end of August. Walnut harvest period was the end of August to early September, the specific time for eaeh stage of different varieties. Development of the internal structure of the walnut fruit extent, the Lvxiang earlier in the Yuanlin 7 days, Xiangling as early as the Yuanlin, 2 -4 days.