不同甘薯品种抗旱性评价及耐旱指标筛选
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张海燕,解备涛,汪宝卿,董顺旭,段文学,张立明
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Evaluation of drought tolerance and screening for drought-tolerant indicators in sweetpotato cultivars
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Hai-Yan ZHANG,Bei-Tao XIE,Bao-Qing WANG,Shun-Xu DONG,Wen-Xue DUAN,Li-Ming ZHANG
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表9 农艺性状与抗旱系数的相关系数(干旱胁迫条件下)
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Table 9 Correlation coefficient of agronomic traits with drought resistance coefficient (drought stress)
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年份Year | 生育期 Growth stage | 叶片数 Leaf number | 蔓长 Vine length | 叶面积系数 Leaf area index | 生物量 Biomass | 地上部 Aboveground | 地下部 Underground | 2012 | 40 DAP | 0.61* | 0.59* | 0.53* | 0.37 | 0.50 | 60 DAP | 0.62* | 0.53* | 0.49 | 0.42 | 0.48 | 80 DAP | 0.69** | 0.65** | 0.52* | 0.60* | 0.63* | 100 DAP | 0.73** | 0.52* | 0.67** | 0.60* | 0.61* | 2013 | 40 DAP | 0.56* | 0.61* | 0.56* | 0.46 | 0.42 | 60 DAP | 0.50 | 0.61* | 0.49 | 0.51 | 0.50 | 80 DAP | 0.59* | 0.59* | 0.53* | 0.64* | 0.65** | 100 DAP | 0.65** | 0.60* | 0.71** | 0.63* | 0.61* |
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