北疆棉区棉花蕾铃脱落规律的初步研究  

Research on Regulation of the Square and Boll Abscission in Xinjiang Cotton Area

作　　者：余渝[1,2] 陈冠文[1,2] 林海 王登伟[1,2] 

机构地区：[1]新疆农垦科学院棉花所 [2]石河子大学农学院

出　　处：《新疆农业大学学报》1999年第1期29-33,共5页Journal of Xinjiang Agricultural University

基　　金："九五"国家科技攻关资助项目

摘　　要：经过３ａ（１９９６～１９９８年）系统调查研究，结果表明：北疆棉区棉花蕾铃脱落率达８０％以上，且落蕾率高于落铃率。落蕾在现蕾６ｄ后直到开花前比例较大，而落铃主要集中在开花后１２ｄ以内。蕾铃脱落的主要时期出现明显的峰值，随年份不同而有所不同。中部果枝现蕾较多，脱落率也较高；同一果枝第一果节以落铃为主，第二果节以落蕾为主。栽培措施、气候条件与棉花的蕾铃脱落有极其密切的关系。Last year, the result of the system reached has showed that the square and boll abscission rate reached over 80% and the squane abscission rate is higher from squaneiny 6 days to blooming. But the boll abscission occurred mainly after flowing 12 days. The peak value appeared at the main stage of the square the following year. Number of squaring in middle branches are more than others. So did the square abscission rate. Most of boll abscission occurred in the first node and most of square abscission in the second node at the same branch. The cultivate technique and climate condition closely relate to the square and boll absicission.

关 键 词：棉花 蕾铃脱落率 防止措施 蕾铃脱落规律 

分 类 号：S562.01[农业科学—作物学]