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我国80年代发展起来的鲜食葡萄园中,巨峰占有相当大的比例,它以品质好、产量高、抗病性强而受到普遍欢迎。但该品种的最大弊病是落花落果,是长期困扰广大栽培者的一大难题。经我们多年的观察与实践,基本探明了造成“双落”的主要原因,并采取相应措施予以防治,取得了满意的效果。1.造成巨峰落葡萄花落果的主要原因(1)营养贮备不足。葡萄花芽的分化和形成,主要依赖上年的营养贮备,如果贮备的养分不足,会影响花器发育和授粉受精,极易造成严重的落花落果。(2)植株负载过大。巨峰花芽形成容易,结实性好,
Kaohsiung occupies a considerable proportion of the fresh-eating vineyards developed in China in the 1980s. It is widely welcomed by its good quality, high yield and strong disease resistance. However, the biggest drawback of this breed is disastrous, which has long plagued many growers. After years of observation and practice, we have basically ascertained the main causes of “double falls” and took corresponding measures to prevent and control them, thus achieving satisfactory results. 1. Caused by the peak falling flowers of the main reasons (1) lack of nutritional reserves. Grape flower bud differentiation and formation, mainly dependent on the previous year’s nutritional reserves, if the lack of nutrients stored, will affect the floral development and pollination fertilization, can easily lead to serious dropfall. (2) Plant overload. Kyoho flower bud formation is easy, strong, good,