| 丘陵旱地甘薯豫薯8号的生长分析 |
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| 引用本文： | 王林生,李友军. 丘陵旱地甘薯豫薯8号的生长分析[J]. 杂粮作物, 2001, 21(3): 37-39 |
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| 作者姓名： | 王林生 李友军 |
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| 作者单位： | 河南省洛阳农业高等专科学校, |
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| 基金项目： | 河南省重大科技攻关项目!的部分内容 (项目编号 :9710 5 0 2 0 1) |
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| 摘 要： | 采用植物生长分析法，对丘陵旱地甘薯豫薯8号进行物质生产性能分析，结果表明：豫薯8号的叶面积系数（LAI），相对生长率（RGR）和净同化率（NAR）均显著高于徐薯18，在整个生长过程中，豫薯8号的NAR有两个高峰期，分别为栽后的50－70d和90－100d；第一个高峰期其NAR为6．24g/(m2./d)，比徐薯18提高20．2％，第二个高峰期NAR为6．56g/(m2.d)，比笔薯18提高13．5％，豫薯8号的叶面积比率（LAR）则略低于徐薯18，证明茅薯8号有良好的物质生产性能，可作为徐薯18的理想换代品种。
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| 关 键 词： | 豫薯8号甘薯 生长分析 丘陵旱地 相对生长率 净同化率 叶面积系数 |
| 文章编号： | 1003-4803(2001)03-0037-03 |
| 修稿时间： | 2000-12-19 |
Growth Anyalysis ofSweetpotato |
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| WANG Lin-sheng,LI You-Jun. Growth Anyalysis ofSweetpotato[J]. Rain Fed Crops, 2001, 21(3): 37-39 |
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| Authors: | WANG Lin-sheng LI You-Jun |
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| Abstract: | The dry matter production prop3erty of ‘Yushu No. 8’ in the hilly dryland was analyzed by using growth analysis.The LAI, RGR, NAR of ‘Yushu No. 8’ was higher than ‘Xushu 18’. Its NAR had two peaks in all growth stage, at 50-70d and 90-110d after transplanting. The first peak was 6.24 g/(m2·d), increased by 20.2% than ‘Xushu 18’, the second was 6.56g/(m2·d), raised by 13.5%, and LAR was lower. The results showed that ‘Yushu No. 8’ had better dry matter production property and was a improved variety to raplace 'Xushu 18'. |
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| Keywords: | sweetpotato Yushu No. 8 growth analysis hilly dryland |
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