| 氮肥与缩节胺配合对Bt棉源库特征和铃重的影响 |
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| 引用本文： | 陈德华,陈源,杨长琴,何钟佩,吴云康.氮肥与缩节胺配合对Bt棉源库特征和铃重的影响[J].棉花学报,2002,14(3):147-150. |
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| 作者姓名： | 陈德华 陈源 杨长琴 何钟佩 吴云康 |
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| 作者单位： | 1. 扬州大学农业部江苏省作物栽培生理重点实验室,扬州,225009
2. 中国农业农业大学,北京,100094 |
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| 基金项目： | 江苏省教育厅重点开放实验室基金 (K990 72 ) |
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| 摘 要： | 氮肥和缩节胺配合对 Bt棉的棉铃发育影响表明 ,提高 Bt棉的中部外围和上部铃重可促进整株铃重增加 ,进一步提高产量。其生理机制表现为各部位棉铃对位叶叶绿素、Ru BPase和 ATP含量提高 ,棉铃中 IAA含量增加 ,蔗糖转化酶活性以及纤维素合成能力增强 ,子棉积累量增多。即整株源库活性的协调 ,特别是中部外围和上部铃及其对位叶与相应的中部和内围生理活性差异缩小是整株铃重提高的重要原因
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| 关 键 词： | Bt棉 氮肥 缩节安 铃重 源库活性 |
| 文章编号： | 1000-7807(2002)03-0148-04 |
| 修稿时间： | 2001年8月24日 |
The Effects on the Boll Weight and the Source-Sink Characteristics in the Coordination of Nitrogen Fertilizer and DPC in Bt Cotton |
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| CHEN De hua,CHEN Yuan ,YANG Chang qin ,HE Zhong pei ,WU Yun kang.The Effects on the Boll Weight and the Source-Sink Characteristics in the Coordination of Nitrogen Fertilizer and DPC in Bt Cotton[J].Cotton Science,2002,14(3):147-150. |
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| Authors: | CHEN De hua CHEN Yuan YANG Chang qin HE Zhong pei WU Yun kang |
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| Institution: | CHEN De hua1,CHEN Yuan 1,YANG Chang qin 1,HE Zhong pei 2,WU Yun kang 1 |
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| Abstract: | By studying on the combinative effect of the nitrogen fertilizer and DPC on the boll development of Bt cotton, the results showed that the boll weight enhancement of the exterior round in the middle part and upper part made the boll weight raise at an overall level, the yield further increased. The physiological mechanism were that the increase of Chlorophyll, RuBPase and ATP contents in the opposite leaf of the boll of different parts. The IAA content raised, the activity of Sucrase and the synthesis of the cellulose enhanced, the accumulation of seed cotton increased. The coordination of source sink at overall level was the vital cause of the boll weight enhancement. |
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| Keywords: | Bt cotton Nitrogen fertilizer DPC Boll weight Vigor of source sink |
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