摘要
【目的】阐明遮阴对小麦穗粒数形成及产量构成因素的影响,以便在果粮间作模式下采取相应的栽培管理措施。【方法】在人工遮阴和不同果麦间作模式下(枣麦、杏麦和核麦间作),研究遮阴对小麦穗粒数形成、产量及其构成因素的影响。【结果】遮阴明显降低了小麦的可孕小花数、生物量、穗粒数、穗粒重和公顷穗数等产量的主要构成因素,最终导致产量降低。【结论】遮阴后小麦穗粒数的改良应更多地关注小花的分化、发育、退化和结实过程,产量的提高应更多地关注植株的生长发育、公顷穗数和籽粒灌浆过程。
[ Objective] The purpose of this project was to clarify shade condition＇s effect on the formation of kernel number per spike and analyze yield components of wheat under shade condition so as to take an effective growth measurement on fruit tree - crop intercropping models （Jujube - wheat, Apricot - wheat and Walnut- wheat intercropping）. [ Method] In the present paper, the effects of shading on kernel number per spike were studied and analysis of yield components of wheat under the artificial shade condition was carried out. [ Result] The results showed that, under the artificial shade condition, the fertile florets, plant weight, grains per spike, grains weight per spike, spike number per hectare and yield were obviously reduced in the course of the wheat growth period. [ Conclusion] The results indicated that improving the kernel number per spike should be focused on the differentiation, growth and development, degeneration and grain courses of florets. Improving the yield should be focused on the growth and development, spike number per hectare and grain -filling characteristic courses of plants.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2011年第10期1802-1806,共5页
Xinjiang Agricultural Sciences
基金
科技部"十一五"国家科技支撑计划项目(2009BADA4B01)
农业部公益性行业科研专项项目(201003043)
新疆维吾尔自治区财政厅三院基金项目
关键词
小麦
遮阴强度
穗粒数
产量
wheat
shading severity
kernel number per spike
yield
