文档介绍：不同大豆品种生理性状、农艺性状与产量的关系
目录
中文摘要(关键词)┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉1
英文摘要(关键词)┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉2
前言┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉3
1材料与方法┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉8
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、生物产量的研究┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉8
、光合速率等指标的测定┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉9
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2结果和分析┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉10
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、光合速率等指标与产量的相关性分析┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉13
(SPAD)与产量的相关性┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉13
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、硝态氮含量与产量的相关性分析┉┉┉┉┉┉┉┉┉15
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、氨基酸和硝态氮含量与产量的相关性┉┉┉┉┉┉┉┉┉┉┉┉┉┉16
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3结论与讨论┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉18
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参考文献┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉19
致谢┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉┉21
摘要
为了考察各项生理性状在不同时期对产量的影响,以8个大豆品种为试材,研究了不同大豆品种生理性状、农艺性状与产量的关系。试验结果表明:
在苗期叶面积指数、生物产量与产量相关不显著,随着生育进程推进,相关系数逐渐增大,在结荚期较大,鼓粒期达最大,成熟期有所下降;,达到显著水平;生物产量与产量的相关系数在结荚期、,达到显著和极显著水平;从6月26日到8月18日叶绿素含量(SPAD)与产量均呈正相关,相关系数逐渐增加,到结荚鼓粒期(8月18日)达到最大,;在7月3日和7月30日光合速率及相关指标与产量均呈正相关,结荚期(7月30日)的相关系数比开花期(7月3日)的大;伤流量、氨基酸含量与产量呈正相关,、,硝态氮含量与产量呈负相关,三项指标都未达到显著水平;农艺性状与产量的关联序为:荚重>粒重>主茎节数>株高>百粒重>结荚高度>茎重>分枝数,;,分枝数与产量关联系数最小,。
关键词:大豆;生理性状;农艺性状;产量;相关性
Abstract
To investigate the relationship between physiological characters, agronomic characters and the yield of different soybean varieties, field experiments were carried out in 2005 with 8 soybean varieties, adoping random block design. The results were as follows:
The correlation between leaf area index(LAI),biological yield and yield was insignificant in seedling stage.