| 辽宁省不同熟期水稻品种株型特征比较研究 |
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| 引用本文： | 解文孝,吕军,韩勇,李建国,刘博,姜秀英,刘军,姚继攀,唐志强,蒋洪波.辽宁省不同熟期水稻品种株型特征比较研究[J].中国稻米,2017(2):45-49. |
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| 作者姓名： | 解文孝 吕军 韩勇 李建国 刘博 姜秀英 刘军 姚继攀 唐志强 蒋洪波 |
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| 作者单位： | 辽宁省水稻研究所,沈阳,110101 |
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| 基金项目： | 国家科技支撑计划(2015BAD01B02-4) |
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| 摘 要： | 以参加2015年辽宁省水稻区域试验的早熟组、中熟组和中晚熟组品种(系)为材料,研究了不同熟期水稻品种的株型特征关系。结果表明,早熟品种主要是弯穗型、轻穗型,中熟品种多为直立穗型、重穗型品种,晚熟品种以半直立穗型、重穗型品种为主;不同熟期品种叶长差异不显著,叶宽表现为中晚熟品种中熟品种早熟品种,但叶基角正好相反;二次枝梗结实率表现为早熟品种中晚熟品种中熟品种,二次枝梗贡献率表现为中晚熟品种中熟品种早熟品种;穗型指数均以下部优势粒为主。
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| 关 键 词： | 水稻 株型 熟期 穗部性状 |
Comparative Study on Plant Type Characteristics of Different Maturity Stage Rice Cultivars in Liaoning Province |
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| XIE Wenxiao,LV Jun,HAN Yong,LI Jianguo,LIU Bo,JIANG Xiuying,LIU Jun,YAO Jipan,TANG Zhiqiang,JIANG Hongbo.Comparative Study on Plant Type Characteristics of Different Maturity Stage Rice Cultivars in Liaoning Province[J].China Rice,2017(2):45-49. |
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| Authors: | XIE Wenxiao LV Jun HAN Yong LI Jianguo LIU Bo JIANG Xiuying LIU Jun YAO Jipan TANG Zhiqiang JIANG Hongbo |
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| Abstract: | The plant type characteristics and their relationships of different maturity stage rice cultivars were studied in this paper,using forty cultivars as materials which participated in the rice regional trial in Liaoning Province in 2015.The results indicated that the plant type of early maturity cultivars were mainly curve panicle type(CPT)and light panicle type(LPT),the medium mature varieties were erect panicle type (EPT) and heavy panicle type(HPT),the late maturity varieties were semi-erect panicle type and HPT.There existed no significant differences among different maturity type rice cultivars for leaf length,leaf width showed late maturity varieties ＞medium maturity varieties ＞ early maturity varieties,but the leaf base angle was opposite.The secondary branch grain rate showed early maturity varieties ＞ medium maturity varieties ＞ late maturity varieties.The contribution rate of secondary branch showed late maturity varieties ＞ medium maturity varieties＞ early maturity varieties.The panicle type index was mainly dominated by the superior grains on the low part. |
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| Keywords: | rice plant type maturity panicle trait |
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