论文部分内容阅读
对８个板栗品种开花特性及其与低产的关系进行了研究。结果表明，栗雄花序先于雌花形成，而且雄花序多雌花少，在营养分配、输导上不利于雌花形成和发育。仅在结果枝上平均每一雌花就拥有４．２７～８．６２条雄花序。各品种结果枝平均仅有１．４０～１．８７朵雌花。结果母枝抽生的枝梢中，结果枝仅占２９．７５％。每一结果母枝仅有２．４４朵雌花。结果枝长度和粗度与转化成结果母枝的能力呈正相关，但是结果枝挂果后往往生长发育欠佳，结果母枝转化率下降。在这些因素的综合作用下，导致板栗挂果较少，进而影响产量提高。
The flowering characteristics of eight chestnut varieties and their relationship with low yield were studied. The results showed that the chestnut male inflorescence was formed before the female flower, and the female inflorescence was less than the male female inflorescence, which was not conducive to the formation and development of the female flower in nutrient distribution and transportation. On average, only 4.27 ~ 8.62 male inflorescences are found on each female flower on the result branch. The results of each variety of branches on average only 1.40 ~ 1.87 flowers. As a result, in the shoots of the mother plants, the shoots only accounted for 29.75%. Only 2.44 female flowers per parent were found. Results The length and thickness of the branches were positively correlated with their ability to be transformed into fruiting branches. However, the results often showed poor growth and development after the fruiting branches, resulting in a decrease in the conversion rate of the parent branches. Under the combined effect of these factors, less chestnut fruit is formed, thereby affecting the yield increase.