| 水稻品种类型间产量构成因素对肥力反应差异研究 |
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| 引用本文： | 李荣田,秋太权.水稻品种类型间产量构成因素对肥力反应差异研究[J].东北农业大学学报,1995,26(1):13-19. |
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| 作者姓名： | 李荣田 秋太权 |
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| 作者单位： | 东北农业大学农学系 |
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| 摘 要： | 研究了水稻品种类型间产量构成因素对肥力反应差异。研究结果表明,１）穗数对肥力反应,穗数型品种最强,中间型品种次之,穗重型品种最弱;２）穗粒数对肥力反应,穗重型品种最强,中间型品种次之,穗数型品种最弱;３）肥力对水稻结实率影响存在“阀值”效应,品种“阀值”高低决定其耐肥性强弱;４）增肥后,水稻倒伏、结实率急剧下降是限制品种产量进一步提高的首要、直接障碍因子;５）提出ｂ＿２／ｂ＿１可以作为划分品种类型的量化参数之一;６）提出黑龙江省耐肥高产水稻品种类型应是大穗、大粒、大库容、矮秆、叶大而直立的稳重型或偏穗重型品种。
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| 关 键 词： | 水稻 品种类型 产量构成因素 肥力反应 |
STUDIES ON THE DIFFERENCE IN THE RESPONSE OF YIELD COMPONENTS TO FERTILIZER AMONG RICE VARIETAL TYPES |
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| Li Rongtian, Qiu Taiquan, Cui Chenghuan and JingTingbo.STUDIES ON THE DIFFERENCE IN THE RESPONSE OF YIELD COMPONENTS TO FERTILIZER AMONG RICE VARIETAL TYPES[J].Journal of Northeast Agricultural University,1995,26(1):13-19. |
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| Authors: | Li Rongtian Qiu Taiquan Cui Chenghuan and JingTingbo |
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| Abstract: | The difference in the response of yield components to fertilizer among rice varietal types was studied. The results were: 1. In the panicle number per plant. The panicle number types showed the strongest response to fertilizer the panicle-weight types showed the weakest response, and the intermediate types performed in between 2. In spikelet number per panicle.The panicle-weight types showed the strongest response the paniclenumber types showed the weakest response, and the intermediate types performed in between. 3. There was a "threshold" value in the effect of fertility on filled spikelet percentage. and this value is closely torrelated with tolerance of a variety to fertilizer. 4. The main and direct limiting factors to the plant yield increase in the tested varieties were lodging and the low filled spikelets percentage When fertilizoer Was increased. 5. The b_2/b_1 was suggested to be one of the parameters for classification of rice varietal types. 6. It was also suggested that the high-yield varietal types incline to of rice in Heilongjiang province should be the panicle-weight types or the panicle-weight biased types with big panicle, big spikelet, semidwarf stalk and big and upriglit leaves. |
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| Keywords: | rice varietal type yield component response to fertilizer |
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