谷子苗期耐低磷种质筛选及其根系保护酶系统对低磷胁迫的响应

苑乂川,陈小雨,李明明,李萍,贾亚涛,韩渊怀,邢国芳

Screening of germplasm tolerant to low phosphorus of seedling stage and response of root protective enzymes to low phosphorus in foxtail millet

Yi-Chuan YUAN,Xiao-Yu CHEN,Ming-Ming LI,Ping LI,Ya-Tao JIA,Yuan-Huai HAN,Guo-Fang XING

表1 谷子部分性状耐低磷系数(LP/NP)的变化范围及变异系数

Table 1 Coefficient and variation for tolerance to low-phosphorus in some foxtail millet traits

性状 Trait 变化范围 Variation range (%) 平均值 Average (%) 变异系数 Coefficient of variance (%) 株高Plant height 56.15-93.05 71.16 11.00 根长Root length 51.92-140.88 105.48 15.61 地下鲜重Underground fresh weight 92.47-151.40 149.02 18.42 地上鲜重Aboveground fresh weight 35.04-90.63 67.13 14.19 叶长Leaf length 37.90-59.86 46.69 26.69 叶宽Leaf width 50.00-122.73 81.84 12.93 茎粗Diameter of main stem 44.96-106.20 74.26 11.39 地上磷含量Aboveground phosphorus content 36.00-95.00 72.09 15.80 地下磷含量Subsurface phosphorus content 24.00-89.00 58.85 20.69 地上干重Aboveground dry weight 36.00-91.00 66.89 14.98 地下干重Underground dry weight 41.00-124.00 75.74 17.34