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| 黄淮海超高产夏玉米生长发育特性研究 | |
| 引用本文： | 常建智,张国合,李彦昌,闫丽慧,李潮海.黄淮海超高产夏玉米生长发育特性研究[J].玉米科学,2011,19(4):75-79. |
| 作者姓名： | 常建智 张国合 李彦昌 闫丽慧 李潮海 |
| 作者单位： | 1. 河南省鹤壁市农业科学院,河南鹤壁456284;河南农业大学/农业部玉米区域技术创新中心,郑州450002 2. 河南省鹤壁市农业科学院,河南鹤壁,456284 3. 河南农业大学/农业部玉米区域技术创新中心,郑州,450002 |
| 基金项目： | 国家玉米产业技术体系(nycytx-02) |
| 摘 要： | 比较研究超高产田(15 000 kg/hm2)和高产田夏玉米的产量构成、叶面积指数、叶绿素含量、干物质积累特性和灌浆速率等指标差异,探索超高产夏玉米生长发育特性。结果表明,超高产田夏玉米较高产田增产15.6%,穗粒数多3.7%,百粒重增加8.9%,超高产主要依赖于百粒重的增加;吐丝后超高产田夏玉米叶面积指数、叶片SPAD值和总干物质积累量均高于高产夏玉米田,吐丝后10～40 d超高产夏玉米田子粒干物质阶段积累速率较高,吐丝50 d后,高产夏玉米田植株衰老,超高产夏玉米子粒仍维持一定的灌浆速率。超高产田夏玉米具有叶面积指数大、干物质积累多、叶绿素含量高和灌浆时期长等生长发育特性,有效增加穗粒数和粒重。 |
| 关 键 词： | 超高产 夏玉米 产量 生长发育 |
| 收稿时间： | 3/3/2011 12:00:00 AM |
Study on Growth of Super-high-yield Summer Maize in the Ecological Area of the Yellow River, Huai and Hai Rivers |
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| CHANG Jian-zhi,ZHANG Guo-he,LI Yan-chang,YAN Li-hui,LI Chao-hai.Study on Growth of Super-high-yield Summer Maize in the Ecological Area of the Yellow River, Huai and Hai Rivers[J].Journal of Maize Sciences,2011,19(4):75-79. | |
| Authors: | CHANG Jian-zhi ZHANG Guo-he LI Yan-chang YAN Li-hui LI Chao-hai |
| Institution: | CHANG Jian-zhi 1,2,ZHANG Guo-he 1,LI Yan-chang 1,YAN Li-hui 1,LI Chao-hai 2 (1.Henan Hebi Academy of Agricultural Sciences,Hebi 456284,2.Henan Agricultural University/Regional Center for New Technology Creation of Corn of Department of Agriculture,Zhengzhou 450002,China) |
| Abstract: | Field experiments were conducted to study the yield components, leaf area index(LAI), SPAD, dry matter accumulation and grain-filling rate of summer maize between super-high-yield field(15 000 kg/ha) and high-yield field. The results showed that summer maize yield in the super-high-yield field increased by 15.6% than high-yield field, grains per ear was 3.7% and 100-seed weight was 8.9%, super-high-yield hung on the skirts of seed weight. After silking stage, the LAI, SPAD and dry matter of super-high-yield summer maize were higher than high-yield. Grain-filling rate was higher than high-yield in 10 - 40 d after silking, and remained certain level after silking 50d. However, maize plants in high-yield were senescence. Summer maize had the larger LAI, more dry matter accumulation, higher chlorophyll content and longer grain filling periods in the super-high-yield field, and achieved super-high-yield by increasing effectively the grain number and grain weight. |
| Keywords: | Super high yield Summer maize Yield Growth |
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