| 河北省夏播玉米品种主要农艺性状演变规律的研究 |
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| 引用本文： | 周玉芝,段会军,姬惜珠,崔彦宏,周进宝,董晓亮.河北省夏播玉米品种主要农艺性状演变规律的研究[J].河北农业大学学报,2005,28(2):1-4,22. |
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| 作者姓名： | 周玉芝 段会军 姬惜珠 崔彦宏 周进宝 董晓亮 |
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| 作者单位： | 1. 河北农业大学,河北,保定,071001
2. 河北省农业厅,河北,石家庄,050031 |
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| 基金项目： | 国家粮食丰产科技工程项目(2004BA520A07) |
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| 摘 要： | 通过对河北省1975—2002年审(认)定夏播玉米杂交种主要农艺性状的分析,认为河北省夏播玉米杂交种主要农艺性状的演变规律是:株高和穗位有增高的趋势;果穗由细长形向短粗形(筒形)演变,穗粒数增多,千粒重则趋于稳定;株型由平展型逐渐向紧凑、半紧凑型演变;半硬粒型和硬粒型品种增多,马齿型品种的比例降低;产量水平稳步提高,递增幅度逐渐减少。品种的生育期有延长的趋势,适宜种植密度则在经历了由低到高的变化过程以后,近年又呈现逐渐回落的趋势。
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| 关 键 词： | 玉米 品种 农艺性状 演变规律 |
| 文章编号： | 1000-1573(2005)02-0001-04 |
Study on the development rule of summer-planting maize varieties in Hebei province |
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| ZHOU Yu-zhi,DUAN Hui-jun,JI Xi-zhu,CUI Yan-hong,ZHOU Jin-bao,DONG Xiao-liang.Study on the development rule of summer-planting maize varieties in Hebei province[J].Journal of Agricultural University of Hebei,2005,28(2):1-4,22. |
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| Authors: | ZHOU Yu-zhi DUAN Hui-jun JI Xi-zhu CUI Yan-hong ZHOU Jin-bao DONG Xiao-liang |
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| Institution: | ZHOU Yu-zhi~1,DUAN Hui-jun~1,JI Xi-zhu~1,CUI Yan-hong~1,ZHOU Jin-bao~2,DONG Xiao-liang~1 |
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| Abstract: | By the agronomic traits analysis of summer-planting hybrid maize varieties in Hebei province between 1975 and 2002, the development rule showed that the plant and ear position became higher; ear shape thin-long tended to grow thick; kernels per ear increased; 1000-grain weight tended to be stable; plant type changed from loose-type to compact-type or half -compact-type; flint and half flint varieties get more popular yet dent varieties became less; yield gradually increased but the range of yield improvement became lower. Variety growth period tended to be longer, the optimum density decreased gradually after a period in which it changed from low to high. |
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| Keywords: | maize variety agronomical trait development rule |
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