| 不同棉花品种苗期氮效率筛选的初步研究 |
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| 引用本文： | 李雪妮,盛建东,侯静,邢星. 不同棉花品种苗期氮效率筛选的初步研究[J]. 新疆农业大学学报, 2007, 30(3): 44-48 |
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| 作者姓名： | 李雪妮 盛建东 侯静 邢星 |
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| 作者单位： | 1. 新疆农业大学,资源环境学院,乌鲁木齐,830052
2. 新疆五家渠农六师,农业技术推广中心,五家渠,831300 |
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| 基金项目： | 新疆高校科研基金创新群体项目;新疆土壤学重点学科项目 |
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| 摘 要： | 通过砂培盆栽试验,分析棉株的株高、干物重以及全氮含量,研究了48个棉花品种苗期氮效率的差异性。结果表明,相对干物重变异系数较大(25.50%),施肥水平间和品种间干物重差异分别达极显著和显著水平,作为品种筛选的首要指标;相对干物重与相对含氮率、相对吸氮量分别呈极显著负相关和极显著正相关,作为辅助筛选指标;供试品种中,602、新陆早12号、新海12号和新陆早8号为氮高效品种,新海14号、新海21号、炮台1、新陆早20号和18-3号品种为氮低效品种。
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| 关 键 词： | 棉花 品种 苗期 筛选 氮效率 |
| 文章编号： | 1007-8614（2007）03-0044-05 |
| 修稿时间： | 2007-03-12 |
Screening for Nitrogen Efficiency in Different Cotton Varieties at Seeding Stage |
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| LI Xue-ni,SHENG Jian-dong,HOU Jing,XING Xin. Screening for Nitrogen Efficiency in Different Cotton Varieties at Seeding Stage[J]. Journal of Xinjiang Agricultural University, 2007, 30(3): 44-48 |
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| Authors: | LI Xue-ni SHENG Jian-dong HOU Jing XING Xin |
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| Affiliation: | 1. College of Resources and Environmental Science, Xinjiang Agricultural University, Urumqi, 830052; 2. Wujiaqu Centre of Agricultural Technique Extension,Agricultural Division 6 of Xinjiang Production and Construction Corps, Wujiaqu, 831300 |
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| Abstract: | The difference in nitrogen efficiency among 48 cotton varieties was studied in pot experiment by analyzing the plant height,dry matter weight and N content at seeding stage.The results indicated that the variation coefficient of relative dry matter weight were greater(25.50%),the difference in N level and varieties were significant,which served as the primary index for varieties screening;Relative dry matter weight was significantly correlated with relative N uptake and relative N content,it was the auxiliary index for varieties screening;Varieties of 602,XLZ12,XH12,XLZ8 had high nitrogen efficiency,but varieties of XH14,XH21,PT1,XLZ20 and 18-3 had low nitrogen efficiency. |
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| Keywords: | cotton variety seeding stage screen nitrogen efficiency |
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