| 不同群体条件下寒地粳稻干物质积累规律研究 |
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| 引用本文： | 高扬,刘化龙,杨亮,臧家祥,刚爽,赵宏伟. 不同群体条件下寒地粳稻干物质积累规律研究[J]. 农业现代化研究, 2011, 32(4): 487-491 |
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| 作者姓名： | 高扬 刘化龙 杨亮 臧家祥 刚爽 赵宏伟 |
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| 作者单位： | 1. 东北农业大学水稻研究所,黑龙江,哈尔滨,150030;黑龙江省农垦科学院水稻研究所,黑龙江,佳木斯,154007
2. 东北农业大学水稻研究所,黑龙江,哈尔滨,150030 |
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| 基金项目： | 国家科技支撑计划项目(编号:2007BAD65B01); 黑龙省科技攻关计划重大项目(编号:GA09B102-1); 东北农业大学创新团队项目(编号:CXT001-2-1) |
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| 摘 要： | 试验以超级稻品种松粳9号和常规稻品种松粳6号为试验材料,研究了寒地粳稻不同群体条件下干物质积累规律,探讨了插秧密度对干物质积累以及产量形成的影响。结果表明:在一定的插秧密度范围内,松粳6号和松粳9号群体干物重、茎鞘物质输出率和茎鞘物质运转率随密度的增加而增加,但是,当群体密度过大时反而降低。收获指数与抽穗期的稻穗干重和成熟期的整体干重呈显著正相关,与成熟期的稻穗干重呈极显著正相关;茎鞘物质输出率与成熟期稻草干重和稻穗干重呈显著正相关,与成熟期整株干重呈极显著正相关;茎鞘物质运转率与成熟期稻穗干重和整株干重分别呈显著和极显著正相关。在黑龙江省第一积温带地区,松粳6号和超级稻松粳9号的最适插秧密度分别为30cm×13.3cm和30cm×16.7cm。
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| 关 键 词： | 寒地粳稻 插秧密度 干物质积累 产量 |
Study on Regulation of Dry Matter Accumulation of Japonica Rice in Cold Region Under Different Population |
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| GAO Yang,LIU Hua-long,YANG Liang,ZANG Jia-xiang,GANG Shuang and ZHAO Hong-wei. Study on Regulation of Dry Matter Accumulation of Japonica Rice in Cold Region Under Different Population[J]. Research of Agricultural Modernization, 2011, 32(4): 487-491 |
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| Authors: | GAO Yang LIU Hua-long YANG Liang ZANG Jia-xiang GANG Shuang ZHAO Hong-wei |
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| Affiliation: | GAO Yang1,2,LIU Hua-long1,YANG Liang1,ZANG Jia-xiang1,GANG Shuang1,ZHAO Hong-wei1(1.Rice Research Institute,Northeast Agricultural University,Harbin,Heilongjiang 150030,China,2.Rice Research Institute,Heilongjiang Academy of Land Reclamation Sciences,Jiamusi,Heilongjiang 154007,China) |
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| Abstract: | Dry matter accumulation and effect of transplanting density on yield formation of Songjing 9(super rice varieties) and Songjing 6(conventional varieties) in cold region under different population conditions were studied.The results showed that: in a certain range of transplanting density,the population dry weight,export percentage of the matter in stem and sheath(EPMSS) and transformation percentage of the matter in stem and sheath(TPMSS) of Songjing 6 and Songjing 9 were increased with the density increasi... |
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| Keywords: | cold japonica rice transplanting density dry matter accumulation yield |
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