| 摘要: |
| 本文通过对杂种小麦(CHA 杂种)和普通小麦品种的比较研究,分析了杂种小麦在籽粒成熟过程中的几个优势性状。结果表明:杂种小麦顶部叶片的光合速率,光合速率高值持续期和有效叶面积等光合特性均优于普通小麦品种。在光合速率日变化方面,杂种小麦和普通小麦品种的最高值差异显著,而最低值则差异不大,表现出杂种小麦对强光的适应力强,具较大优势;而在弱光下,则难以发挥优势的特性。在籽粒增重上,杂种小麦也表现出灌浆速率大,高值持续时间长等特点。矮秆大穗型杂种小麦的产量因素构成则表现为每穗粒数多或粒重高,穗粒重高的显著优势。 |
| 关键词: 杂种小麦 籽粒成熟期 优势性状 |
| DOI： |
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| Research on the Dominant Characters of Hybrid Wheat in Ripening Stage |
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Liang Zhenxing Wang Shuan Wang Jihua (Beijing Agricultural University.Beijing 100094)
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| Abstract: |
| Through the comparative studies between hybrid wheat(CHA hybrid)and comman wheat cuhivars,some dominant charactors of hybrid wheat during it's ripening stage was analysed.The results are as follows:The rate of photosynthesis,duration of high rate of photosynthesis and effective leave area of the flag leaves of hybrid wheat are all better than those of common wheat;The difference between hy- brid wheat and common wheat cultivars is significant in the maximum daily photosynthesis rate,but is lit- tle in the m... |
| Key words: hybrid wheat ripening stage dominant characters |
