三熟制小麦丰产结构研究

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Studies on the Yield Components for High Yielding Wheat in Annual Three-crop System

1.
Rice and Wheat Ressearch Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019;
2.
Agricultural Bureau of Longhai City, 363100

摘要: 三熟制小麦产量构成中,以单位面积穗数和每穗粒数变异最大,对增产的净贡献率最高。分蘖期短促,主要依靠主茎构成穗数。小麦多花,退化率高达70%～80%,培育大穗的潜力在减少小花退化。
- 小麦 /
- 产量构成因素 /
- 麦稻稻三熟制
Abstract: The research results showed that among the factors of grain yield component of wheat in annual three- crop system, the panicle number per unit and the grain number per panicle appeared to be the most obvious variation, which contributed the greatest to the increase of grain yield.The tillering duration of wheat in annual three- crop system was short.Thus the panicle number mainly depended on main stem heads.The wheat showed more spikelet differentiation, but 70%～80%of them degenerated, therefore the potentiality of getting large- panicle was on decreasing the degen-eration of spileket.
- Wheat /
- Yield component factor /
- Annual three- crop system with wheat- rice- rice

[1]	洪汉洲.1991.小麦幼穆分化特性及其栽培管理的关系.福建稻麦科技,(3): 11~14
[2]	术出版社:59~72
[3]	张建平,李凤鸣等.1993.小麦春生叶龄肥水对冬小麦小花分化、退化与结实的影响.第一届全国青年作物栽培、作
[4]	李建民,原田二郎等.1993.コムキにおる分げつの生育に关する研究.第二报.出粟.出根关系に着目した分げつ出现の再检讨.日本作物学会纪事,62(4): 534~539

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