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作物学报 ›› 2009, Vol. 35 ›› Issue (3): 546-551.doi: 10.3724/SP.J.1006.2009.00546

• 研究简报 • 上一篇    下一篇

长江中下游双季稻高产株型特征初步研究

曾勇军;石庆华*;潘晓华;韩涛   

  1. 江西农业大学作物生理生态与遗传育种教育部重点实验室/农业部双季稻生理生态与栽培重点开放实验室/江西省作物生理生态与遗传育种重点实验室,江西南昌330045
  • 收稿日期:2008-04-18 修回日期:2008-09-05 出版日期:2009-03-12 网络出版日期:2009-01-16
  • 通讯作者: 石庆华
  • 基金资助:

    本研究由国家粮食丰产科技工程项目(2006BAD02A04),超级稻配套栽培技术集成项目(超级稻专项),江西省科技计划项目(20051B0200101)资助

Preliminary Study on the Plant Type Characteristics of Double Cropping Rice in Middle and Lower Reaches of Changjiang River

ZENG Yong-Jun;SHI Qing-Hua*;PAN Xiao-Hua;HAN Tao   

  1. Key Laboratory of Crop Physiology, ecology and Genetic Breeding, Ministry of Education/Key Laboratory of Crop Physiology, Ecology and Cultivation of Double Cropping Rice,Ministry of Agriculture/Key Laboratory of Crop Physiology, Ecology and Genetic Breeding of Jiangxi Province, Jiangxi Agricultural University, Nanchang 330045,China
  • Received:2008-04-18 Revised:2008-09-05 Published:2009-03-12 Published online:2009-01-16
  • Contact: SHI Qing-Hua

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1230

被引次数

47

摘要：

以19个早稻和16个晚稻品种，通过方差分析对不同产量水平水稻的主要株型特征进行研究。结果表明，高产类型双季稻具有库容量大、产量潜力高、物质生产能力和氮素吸收能力强的特点。高产类型早稻生育期110~115 d，株高95~105 cm，上部节间较长，倒2、倒3叶片较长，叶片披垂角相对较大，穗长较长，1次枝梗和2次枝梗数目多，每穗粒数100~130粒，千粒重27~29 g，单穗干重2.5 g以上。高产类型晚稻生育期120~125 d，株高100~110 cm，上部节间长，茎秆粗壮，叶片长度适中，叶片披垂角相对较小，穗长较长，枝梗数目特别是2次枝梗数目多，着粒密度大，每穗粒数120~150粒，千粒重25~27 g，单穗干重3 g左右。

关键词: 双季稻, 株型特征, 产量

Abstract:

Plant characteristics of 19 combinations of early rice and 16 combinations of late rice were studied by variance methods. Results showed that high yield rice combination had large sink, high potential yield and powerful ability in dry matter accumulation and N uptake, and high grain weight for early rice and more grain number for late rice. Basic physiologic characteristics of high yielding rice combination were as follows: 110–115 d of growth duration, 95–105 cm of height, long top internode, long length and big drop-angle of the second and third leaves of top, long spike, large number of the first and second panicle-branches, 100–130 spikelets per panicle, 27–29 g of 1000-grain weight, and over 2.5 g for the weight per panicle for early rice; 120–125 d of growth duration, 100–110 cm of height, long top internode, stout stem, medium length and small drop-angle of the top leaves, long spike, large number of the panicle-branches especially of the second panicle-branches, high density of the grain, 120–150 spikelets per panicle, 25–27 g of 1000-grain weight, and about 3.0 g for the weight per panicle for late rice.

Key words: Double cropping rice, Characteristic of plant type, Yield

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