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向日葵花盘分化发育阶段是影响产量的关键时期。研究花盘分化发育过程与外部形态特征的关系,找出能够准确判断花盘分化发育阶段的外部形态指标,对于制订合理的栽培管理措施,促进盘大、粒多,获得高产,具有重大的意义。为此,我们于1981—1982年进行了这方面的研究。一、材料和方法以油用型品种派列多维克为材料,夏播,株行距33×80厘米。从植株长出8片真叶
The stage of differentiation and development of sunflower disc is the key period affecting the yield. It is of great significance to study the relationship between the process of differentiation and development and the morphological characteristics of outer disk to identify the external morphological indicators that can accurately determine the developmental stages of disk differentiation. It is of great significance to formulate reasonable cultivation management measures and promote the large disk, large kernel and high yield. To this end, we conducted this research in 1981-1982. First, the materials and methods To oil-based varieties to send out multi-Vic to be the material, summer sowing, spacing of 33 × 80 cm. Eight true leaves grow from the plant