| 黑龙江省审定的大豆品种产量变化趋势分析 |
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| 引用本文： | 王春英. 黑龙江省审定的大豆品种产量变化趋势分析[J]. 作物杂志, 2011, 27(2): 103-105 |
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| 作者姓名： | 王春英 |
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| 作者单位： | 黑龙江省肇州县农业技术推广中心,166400,黑龙江肇州 |
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| 摘 要： | 对1991~2010年间黑龙江省审定的适于第一至第三积温带的142个大豆品种的产量变化进行了分析。结果表明,大豆品种区域试验和生产试验产量与审定年份之间表现显著的线性回归关系,产量呈逐年增加趋势,随着审定年份的推移,区域试验最高产量逐渐增加;区域试验和生产试验产量平均值分别提高了10.46%和7.40%,呈逐渐上升趋势,但增产幅度逐渐减小。
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| 关 键 词： | 大豆 黑龙江省 审定品种 产量 |
Analysis of Yield Changes of Soybean Cultivars Authorized in Heilongjiang Province |
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| Wang Chunying. Analysis of Yield Changes of Soybean Cultivars Authorized in Heilongjiang Province[J]. Crops, 2011, 27(2): 103-105 |
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| Authors: | Wang Chunying |
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| Affiliation: | Wang Chunying(Zhaozhou Extension Center of Agri-technology,Zhaozhou 166400,Heilongjiang,China) |
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| Abstract: | Totally 142 soybean cultivars released from the first accumulated temperature band(ATB),the second ATB and the third ATB in the post 20 years in Heilongjiang province were selected for yield investigation.The results showed that there was a significant relationship between soybean regional trial yield and production test yield and year of cultivar release.The soybean yields increased per year across the period.Along with the time,the regional trial yield increased and production test yield was higher than t... |
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| Keywords: | Soybean Heilongjiang Province Authorized cultivars Yield |
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