| 遮光对不同株型玉米品种农艺性状和果穗发育的影响 |
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| 引用本文： | 王秀萍,刘天学,李潮海,李大鹏.遮光对不同株型玉米品种农艺性状和果穗发育的影响[J].江西农业学报,2010,22(1):5-7. |
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| 作者姓名： | 王秀萍 刘天学 李潮海 李大鹏 |
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| 作者单位： | 河南农业大学,农学院、农业部夏玉米区域技术创新中心,河南,郑州,450002 |
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| 基金项目： | 河南省重大科技专项(081100110400) |
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| 摘 要： | 以不同株型玉米品种为材料,在大田采用人工遮光处理,研究了弱光胁迫对不同株型玉米品种的农艺性状、穗部性状和产量的影响。结果表明,拔节至吐丝期遮光处理导致玉米生长发育迟缓,吐丝期株高、茎粗、叶面积等农艺性状和雌穗长、雌穗粗、雌穗鲜重等穗部性状均下降,可见花丝数减少;成熟期,穗部性状除千粒重增加,其余均降低。紧凑型品种浚单20对遮光的敏感性显著低于平展型品种豫玉22。
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| 关 键 词： | 玉米 遮光 生长发育 产量 |
Effects of Shading on Agronomic Traits and Ear Development of Maize Cultivars (Zea mays) with Different Plant Types |
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| WANG Xiu-ping,LIU Tian-xue,LI Chao-hai,LI Da-peng.Effects of Shading on Agronomic Traits and Ear Development of Maize Cultivars (Zea mays) with Different Plant Types[J].Acta Agriculturae Jiangxi,2010,22(1):5-7. |
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| Authors: | WANG Xiu-ping LIU Tian-xue LI Chao-hai LI Da-peng |
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| Institution: | College of Agronomy/a>;Henan Agricultural University/a>;Innovation Centre for Summer Maize Regional Technology/a>;Ministry of Agriculture/a>;Zhengzhou 450002/a>;China |
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| Abstract: | The effects of artificial shading on the agronomic traits and ear development of two summer maize cultivars which possessed different plant types were studied in the field.The result showed that the growth and development of XD20 and YY22 were prolonged by the treatment of shading from 6 leaves stage to silking stage;at silking stage,the agronomic traits such as plant height,stem diameter and leaf area,and ear traits such as ear length,ear diameter,fresh ear weight and number of visible silks of two cultiva... |
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| Keywords: | Maize Shading Growth and development Yield |
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