摘要
传统的棉种产量结构模式与直播棉和棉种的粗加工(毛子剥绒子)相适应,我们概括这一模式为:单位面积种子产量=单位面积铃数×霜前铃%×铃种子数×粒重。新扩展的棉花良种产量结构模式与育苗移栽和棉种的深加工(硫酸脱绒子、包衣子)相适应,我们概括这一模式为:单位面积良种产量=单位面积铃数×霜前铃%×铃成熟种子数×粒重。铃成熟种子数既是数量构成因素,又有质量的内涵,是实际而有效用于生产的种子,作者建议将扩展模式中诸因素形成的产量定名为良种,以便与传统模式种子产量相区别。本文采用灰色关联度的分析方法从两种模式不同株型产量结构诸因子中作出比较和判断,找出影响较大的主要因素,从筛选最佳株型入手,明确产质量结构的主攻目标,对促进棉种专业化生产水平的发展,社会化效益的提高,具有一定的参考价值。
The traditional seed cotton yield model, i. e. seed yield per area=bolls per unit area×boll percentage picked before the first frosting×seed poll×weight per seed, fits in with the direct cultivatoin of cotton seed and rough seed processing technology to produce fuzz or stripped fiber seed. Whereas our new developing seed yield model, i. e. good seed cotton yield=bolls per unit area×boll percentage picked before the first frosting×mature seeds per boll×weight per seed, fits in with thd seedling transplanting cultivation and such fine seed processing technologies as shedded fiber from seed by Sulphuric acid and seed coated. Mature seeds per boll are not only a yield component in quantity, but also a qualitative intension since they are effectively used in the production. It is proposed that the seed yield in our new developing yield nmodel be named as the good seed in order to make a difference from the seed yield in the traditional yield model. Through the grey rational analysis, a comparision of yield components for different plant types in two seed yield models were made to assure which component has the great influence on yield and select the best plant type. This information should be of great reference value to promote the specilized multiplication of good seed and increase the social benefits.
出处
《种子》
CSCD
北大核心
1991年第1期20-24,共5页
Seed
