| 摘要: |
| 通过对玉米杂交种西农 1 1号的亲本 WNsub>11与西黄改进行的播期试验和雌、雄穗分化观察 ,掌握了两个自交系的穗分化及吐丝、散粉规律 ,明确了自交系 WNsub>11雌雄不协调及西农 1 1号正、反交制种均需先播母本的内在原因 ,确定了西农 1 1号正、反交制种播期调节及花期预测的叶龄指标。 |
| 关键词: 玉米杂交种,西农11号,穗分化,玉米制种 |
| DOI： |
| 分类号:S513.038 |
| 基金项目:陕西省科委重点攻关项目(95K-01-G3) |
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| The application of the differentiation laws of the reproductive organs of hybrid corn variety Xinong 11 in its seed multiplication |
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YUN Hai yan LUO Shu ping WANG Qiang LI De xiao ZHANG Hai cheng
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| Abstract: |
| Through experiment of planting dates and observation of reproductive organ differentiation,the laws that govern the reproductive organ differentiation, silk emergence and pollen shedding of the two parental inbred lines of Xinong 11 in seed multiplication of Xinong 11 by reciprocal crossings have been found out and thus the reason why the female and male reprodutive organs of WN11 do not differentiate synchronously in their development and why the female parent should be planted earlier than the male parent in seed multiplication of Xinong 11 have been clarified;Meanwhile, the leaf age indices to predict the planting and flowering dates have been confirmed in seed multiplication of Xinog 11 by reciprocal crossings. |
| Key words: corn hybrid,Xinong 11,reproductive organ differentiation,seed multiplication |
