| 玉米新品种豫玉27群体生理指标的研究 |
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| 引用本文： | 檀尊社,陈润玲,赵保献,韩卫红,雷晓兵,梁晓伟,游福欣,王定勋. 玉米新品种豫玉27群体生理指标的研究[J]. 西北农业学报, 2003, 12(2): 31-35 |
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| 作者姓名： | 檀尊社 陈润玲 赵保献 韩卫红 雷晓兵 梁晓伟 游福欣 王定勋 |
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| 作者单位： | 1. 洛阳市农业科学研究所,河南,洛阳,471022
2. 宜阳县种子公司,河南,宜阳,471600 |
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| 基金项目： | "九五"国家科技攻关项目(96-002-03). |
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| 摘 要： | 对豫玉27群体生理指标进行了研究,结果表明豫玉27叶片上冲,叶向值大,株型紧凑,群体内光分布较合理。叶面积系数和光合势稳定期长,衰减慢,叶片净同化率高,后期灌浆持续时间长,强度高,全株地上部于物质积累呈“S”型曲线,从吐丝授粉开始到授粉内25d干物质积累为最终生物产量的50.9％～53.4％。适宜种植密度为63000～69000株/hm~2。
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| 关 键 词： | 玉米 豫玉27 群体 生理指标 |
| 文章编号： | 1004-1389(2003)02-0031-05 |
| 收稿时间： | 2002-05-13 |
| 修稿时间： | 2002-05-13 |
A Study on the Population Physiologic Indexes of New Maize Cultivar Yuyu 27 |
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| TAN Zun-she,CHEN Run-ling,ZHAO Bao-xian,HAN Wei-hong,LEI Xiao-bing,LIANG Xiao-wei,YOU Fu-xin and WANG Ding-xun. A Study on the Population Physiologic Indexes of New Maize Cultivar Yuyu 27[J]. Acta Agriculturae Boreali-occidentalis Sinica, 2003, 12(2): 31-35 |
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| Authors: | TAN Zun-she CHEN Run-ling ZHAO Bao-xian HAN Wei-hong LEI Xiao-bing LIANG Xiao-wei YOU Fu-xin WANG Ding-xun |
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| Affiliation: | Luoyang Institute of Agricultural Sciences, Luoyan He''nan 471022, China;Luoyang Institute of Agricultural Sciences, Luoyan He''nan 471022, China;Luoyang Institute of Agricultural Sciences, Luoyan He''nan 471022, China;Luoyang Institute of Agricultural Sciences, Luoyan He''nan 471022, China;Luoyang Institute of Agricultural Sciences, Luoyan He''nan 471022, China;Luoyang Institute of Agricultural Sciences, Luoyan He''nan 471022, China;Luoyang Institute of Agricultural Sciences, Luoyan He''nan 471022, China;Yiyang County Seed Company, Yiyang He''nan 471600, China |
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| Abstract: | The population physiologic indexes of a new maize cultivar-yuyu 27 were determinited in 1999. The results showed that the cultivar's plant shape was terse,leaf upheld,leaf orientation value (LOV) was big. Photoillumination in the plant population rational-distributed. Leaf area index (LAI) and leaf area duration (LAD) long-stabilized and slow-atlenuated,net assimilation rate(NAR) of leaf was high. Duration and intensity of filling stage was long and high. Dry material accumulation of the plants on the ground was S-shaped curve,the percentage of dry material accumulation was 50. 9%~ 53. 4% ot the final biolgical yield in 25 d from spinning to pollination. The planting density of 63 000-69 000 plant/hm2 was suitable. |
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| Keywords: | Maize Yuyu 27 Population Physiologic index |
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