种植密度对2个青稞品种抗倒伏及秸秆饲用特性的影响

赵小红,白羿雄,王凯,姚有华,姚晓华,吴昆仑

Effects of planting density on lodging resistance and straw forage characteristics in two hulless barley varieties

Xiao-Hong ZHAO,Yi-Xiong BAI,Kai WANG,You-Hua YAO,Xiao-Hua YAO,Kun-Lun WU

表1 种植密度对茎节和根系性状的影响

Table 1 Effect of planting density on stem and root characteristics

品种 Variety 处理Treatment 株高 Plant height (cm) 茎粗 Internode external diameter (mm) 壁厚 Internode wall thickness (mm) 根长 Root length (mm) 体积 Root volume (cm3) 根干重 Root dry weight (g) 根数 Root number 基部第2节 2nd node from the base 基部第3节 3rd node from the base 基部第4节 4th node from the base 基部第2节 2nd node from the base 基部第3节 3rd node from the base 基部第4节 4th node from the base 2017 昆仑14号 Kunlun 14 T1 108.78 b 4.29 a 3.84 a 3.99 a 0.48 a 0.47 a 0.39 a 71.75 e 0.16 a 0.32 bc 23.80 d T2 112.07 a 3.78 ab 3.60 ab 3.78 ab 0.41 ab 0.42 ab 0.31 b 76.08 c 0.17 a 0.33 bc 26.18 c T3 112.31 a 3.47 b 3.44 ab 3.68 b 0.38 ab 0.40 ab 0.31 b 105.74 a 0.18 a 0.47 a 27.67 b T4 112.93 a 3.43 b 3.37 ab 3.59 b 0.37 ab 0.38 b 0.28 b 84.52 b 0.17 a 0.39 ab 29.16 a T5 112.47 a 2.70 c 3.14 b 3.53 b 0.36 b 0.37 b 0.27 b 73.98 d 0.14 a 0.26 c 27.67 b 门源亮蓝 Menyuanlianglan T1 114.42 a 3.30 a 2.99 a 2.88 a 0.29 a 0.29 a 0.22 a 98.10 a 0.18 a 0.28 a 26.01 a T2 112.64 a 2.98 ab 2.72 ab 2.62 ab 0.28 ab 0.29 a 0.22 a 88.82 b 0.17 a 0.19 b 18.06 b T3 111.51 a 2.83 b 2.57 b 2.57 abc 0.26 ab 0.28 a 0.20 a 62.22 c 0.14 ab 0.12 c 16.53 c T4 113.61 a 2.79 b 2.52 b 2.42 bc 0.22 ab 0.22 ab 0.18 a 47.08 d 0.10 b 0.11 c 15.00 d T5 111.84 a 2.38 c 2.52 b 2.32 c 0.20 b 0.20 b 0.18 a 44.70 e 0.08 b 0.08 d 14.38 d 2018 昆仑14号 Kunlun 14 T1 118.97 b 3.9.0 a 3.50 a 3.50 a 0.41 a 0.40 a 0.32 a 67.69 d 0.16 a 0.25 bc 20.00 b T2 122.57 a 3.43 b 3.21 ab 3.32 a 0.35 b 0.35 ab 0.26 b 71.77 c 0.15 ab 0.26 bc 22.00 ab T3 122.83 a 3.15 b 3.07 bc 3.23 a 0.33 b 0.33 ab 0.25 b 99.75 a 0.13 ab 0.37 a 24.75 a T4 121.30 a 3.12 b 3.01 bc 3.15 a 0.32 b 0.32 b 0.23 b 79.74 b 0.12 bc 0.31 ab 24.50 a T5 120.68 ab 2.45 c 2.80 c 3.10 a 0.31 b 0.31 b 0.23 b 69.78 cd 0.101 c 0.21 c 23.25 a 门源亮蓝 Menyuanlianglan T1 122.87 a 3.03 a 2.67 a 2.69 a 0.21 a 0.21 a 0.16 a 71.72 a 0.12 a 0.18 a 21.25 a T2 120.96 b 2.74 a 2.45 a 2.45 a 0.20 a 0.20 a 0.16 a 64.94 b 0.10 ab 0.12 b 14.75 b T3 119.75 b 2.60 a 2.32 a 2.40 a 0.19 a 0.20 a 0.14 a 45.49 c 0.07 bc 0.08 c 13.50 bc T4 122.00 a 2.56 a 2.27 a 2.26 a 0.16 ab 0.16 a 0.13 a 34.42 d 0.06 c 0.07 cd 12.25 c T5 120.10 b 2.18 b 2.21 a 2.17 a 0.14 b 0.14 a 0.13 a 32.68 e 0.04 c 0.05 d 11.75 c