| 稀植栽培下春小麦旗叶光合性状的变化规律 |
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| 引用本文： | 庄文锋,魏湜,赵东旭.稀植栽培下春小麦旗叶光合性状的变化规律[J].东北农业大学学报,2008,39(3):22-25. |
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| 作者姓名： | 庄文锋 魏湜 赵东旭 |
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| 作者单位： | 东北农业大学农学院,哈尔滨,150030 |
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| 摘 要： | 试验选用适宜稀植栽培的三个春小麦品种,设三个处理A1:600万株.hm-2(三叶期开沟施肥),A2:450万株.hm-2(三叶期开沟施肥,花期叶面喷肥),A3:300万株.hm-2(花期叶面喷肥)。结果表明,三个品种旗叶叶绿素总量Chl(a+b)和叶绿素a/b值变化规律不同,东农122、龙麦26的Chl(a+b)最大值出现在300万株密度下,克丰6出现在450万株密度下。稀植栽培下比叶重也有不同程度提高,东农122、龙麦26在A1、A2处理下明显高于A3处理。
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| 关 键 词： | 春小麦 稀植栽培 光合性状 产量 |
| 文章编号： | 1005-9369(2008)03-0022-04 |
| 修稿时间： | 2007年1月8日 |
Change regulation of photosynthetic characters in flag leaf of spring wheat under low seeding density |
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| ZHUANG Wenfeng,WEI Shi,ZHAO Dongxu.Change regulation of photosynthetic characters in flag leaf of spring wheat under low seeding density[J].Journal of Northeast Agricultural University,2008,39(3):22-25. |
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| Authors: | ZHUANG Wenfeng WEI Shi ZHAO Dongxu |
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| Abstract: | Three spring wheat varieties which suitable for low seeding cultivation were selected for the experiment.Three experimental treatment were desigend as follow,A1: 6 million basic seedings per hectare(fertilization in three leaves stage),A2: 4.5 million basic seedings per hectare(fertilization in three leaves stage and foliar in flower stage),A3: 3 million basic seedings per hectare(foliar in flower stage).The results showed that Chl(a b)and Chl a/b of flag leaf have different changing regulations,the maximum Chl(a b) of Dong-nong122 and Longmai26 is under 3 million seedings and Kefeng6 is under 4.5 million seedings.The low density can also improve the SLW,the SLW of Dongnong122 and Longmai26 under A1,A2 is higher than A3 treament. |
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| Keywords: | spring wheat low seeding density cultivation photosynthetic characters yield |
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