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中国农学通报

中国农学通报 ›› 2008, Vol. 24 ›› Issue (10): 133-136.

所属专题： 水稻

• 农学 农业基础科学 • 上一篇    下一篇

华南双季超级稻秧苗形态性状的比较研究

周新桥,陈达刚,李丽君,张旭,陈友订   

  • 收稿日期:2008-06-30 修回日期:2008-07-02 出版日期:2008-10-05 发布日期:2008-10-05

Comparison of morphological characteristics in South-China double cropping super rice seedling

Xin-Qiao ZHOU,Da-Gang CHEN,Li-Jun LI,Xu ZHANG,You-Ding CHEN   

  • Received:2008-06-30 Revised:2008-07-02 Online:2008-10-05 Published:2008-10-05

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摘要： 2007年早、晚季在广州，以最新育成的超级杂交稻强优组合天优10号、天优122、五丰优128、特优138、两优培九，常规超级稻品种玉香油占为供试材料，对其秧苗形态特性作了比较研究，结果表明：在华南稻区早、晚季节生态环境下，供试材料间植株高度、主茎叶片数目、单株茎数、叶鞘基部宽度的差异达显著或极显著水平。这不但证明了以往研究中将这些性状作为华南双季超级稻动态株型育种中秧苗期（大苗）理想形态性状指标的可靠性，而且还完善了华南双季超级稻动态株型育种中秧苗期（大苗）理想形态性状指标，即：早、晚季植株高度分别为35.0～38.9 cm和33.5～37.8cm，早、晚季主茎叶片数分别为5.2～5.8片和4.9～5.2片，早、晚季单株茎数分别为1.5～3.0条和3.0～3.7条，早、晚季叶鞘基部宽分别为0.70-0.75cm和0.51～0.59cm。

关键词: 水稻恢复系, 水稻恢复系, 南恢536, 选育

Abstract: New-bred super hybrid rice combinations Tianyou 10 hao, Tianyou 122, Wufengyou 128, Teyou 138, and super rice cultivarYuxiangyouzhan were chosen to study the differences of morphological characteristics in South-China double cropping super rice seedling in Guangzhou in the early and late season, 2007. The results showed that,under the ecological conditions of double rice cropping system in the southern China, a significant difference of F-value at 1% or 5% level existed among the tested cultivar and combinations in plant height, leaf number of main stem, stem number each plant and basal width of leaf sheath. Therefore, they are reliable to be ideal morphological characteristics indexes of South China double cropping super rice seedling. And the ideal morphological characteristics of South-China double cropping super-rice at seedling stage were improved.They are 35.0～38.9cm in the early crop and 33.5～37.8 cm in the late crop for the ideal plant height, 5.2～5.8 leaves in the early crop and 4.9～5.2 leaves in the late crop on the main stem,1.5～3.0 tillers in the early crop and 3.0～3.7 tillers in the late crop for the tillers per plant, 0.70-0.75cm in the early crop and 0.51～0.59cm in the late crop for the width of basal leaf sheath.