不同甘薯品种抗旱性评价及耐旱指标筛选

张海燕,解备涛,汪宝卿,董顺旭,段文学,张立明

Evaluation of drought tolerance and screening for drought-tolerant indicators in sweetpotato cultivars

Hai-Yan ZHANG,Bei-Tao XIE,Bao-Qing WANG,Shun-Xu DONG,Wen-Xue DUAN,Li-Ming ZHANG

表6 干旱胁迫对甘薯地上部生物量的影响

Table 6 Effects of drought stress on biomass of aboveground part in sweetpotato (g plant-1)

品种 Cultivar 栽后60 d 60 DAP 栽后100 d 100 DAP 对照Control 干旱Drought 相对值RV 对照Control 干旱Drought 相对值RV 2012 徐薯18 Xushu 18 59.24 c 35.48 c 0.60 ab 85.97 d 44.53 c 0.52 bcde 济薯15 Jishu 15 50.13 cd 30.83 cd 0.62 ab 82.17 d 42.25 cd 0.51 cdef 济薯21 Jishu 21 58.78 c 38.69 bc 0.66 a 85.24 d 48.52 bc 0.57 a 济徐23 Jixu 23 65.49 b 41.19 ab 0.63 a 93.53 c 51.61 ab 0.55 ab 济薯25 Jishu 25 72.43 a 44.31 ab 0.61 ab 99.89 b 53.97 a 0.54 abc 北京553 Beijing 553 47.63 de 26.65 de 0.56 cd 75.83 e 38.70 d 0.51 cdef 郑薯20 Zhengshu 20 42.22 e 23.17 e 0.55 cd 67.22 f 30.08 e 0.45 g 烟薯25 Yanshu 25 73.84 a 45.41 a 0.61 ab 107.65 a 54.49 a 0.51 cdef 济薯22 Jishu 22 45.47 e 24.26 e 0.53 d 72.39 e 32.85 e 0.45 g 济薯26 Jishu 26 65.32 b 40.48 ab 0.62 ab 91.68 c 49.27 b 0.54 abc 凌紫 Ayamaraski 31.99 f 18.50 f 0.58 bc 57.39 g 22.75 f 0.40 h 济薯18 Jishu 18 53.12 c 30.17 cd 0.57 bc 75.57 e 35.76 de 0.47 fg 济紫薯1号 Jizishu 1 65.33 b 38.80 bc 0.59 bc 83.80 d 40.99 cd 0.49 ef 济紫薯2号 Jizishu 2 45.69 e 27.33 de 0.60 ab 63.66 f 31.81 e 0.50 def 济紫薯3号 Jizishu 3 78.26 a 49.07 a 0.63 a 105.02 a 54.99 a 0.52 bcde 2013 徐薯18 Xushu 18 65.18 c 37.15 c 0.57 cdef 96.72 d 47.82 c 0.49 cde 济薯15 Jishu 15 55.61 de 32.84 d 0.59 bcd 93.43 de 46.32 c 0.50 bcde 济薯21 Jishu 21 66.10 c 44.61 b 0.67 a 94.42 de 55.13 b 0.58 a 济徐23 Jixu 23 67.93 c 41.93 bc 0.62 bc 97.94 d 53.08 b 0.54 b 济薯25 Jishu 25 80.99 a 48.65 a 0.60 bc 112.57 b 59.76 a 0.53 bc 北京553 Beijing 553 57.04 d 30.81 de 0.54 efg 92.29 de 45.88 c 0.50 bcde 郑薯20 Zhengshu 20 50.27 e 26.46 e 0.53 fg 81.52 f 35.09 d 0.43 g 烟薯25 Yanshu 25 82.62 a 49.92 a 0.60 bc 121.50 a 60.36 a 0.50 bcde 济薯22 Jishu 22 55.20 d 28.27 e 0.51 g 89.39 e 39.18 d 0.44 fg 济薯26 Jishu 26 74.08 b 45.02 ab 0.61 bc 104.93 c 55.31 b 0.53 bc 凌紫 Ayamaraski 41.09 f 22.60 f 0.55 efg 75.88 g 28.43 e 0.37 h 济薯18 Jishu 18 54.70 de 30.14 d 0.55 efg 78.72 fg 36.13 d 0.46 efg 济紫薯1号 Jizishu 1 74.10 b 43.06 b 0.58 cde 95.71 d 45.62 c 0.48 defg 济紫薯2号 Jizishu 2 64.23 c 37.24 c 0.58 cde 90.64 de 43.82 c 0.48 defg 济紫薯3号 Jizishu 3 81.60 a 45.36 ab 0.56 def 110.23 b 57.70 ab 0.52 bcd