密度和株行距配置对川中丘区夏玉米群体光分布及雌雄穗分化的影响
|
|
金容,李钟,杨云,周芳,杜伦静,李小龙,孔凡磊,袁继超
|
Effects of density and row spacing on population light distribution and male and female spike differentiation of summer maize in hilly area of central Sichuan
|
|
Rong JIN,Zhong LI,Yun YANG,Fang ZHOU,Lun-Jing DU,Xiao-Long LI,Fan-Lei KONG,Ji-Chao YUAN
|
|
表2 密度和株行距配置对玉米雌雄穗幼穗分化的影响
|
Table 2 Effects of density and row spacing on ear and tassel spikelet differentiation of maize
|
|
时期
Stage | 密度 Density | 株行距配置
Row spacing | 雌穗Ear | 雄穗Tassel | 长度
Length
(mm) | 中部直径
Middle part
diameter (mm) | 长度
Length
(mm) | 中部直径
Middle part diameter (mm) | 小穗分化期
Spikelet differentiation period | A1 | B1 | 6.59 | 1.66 | 5.73 | 1.43 | | B2 | 5.61 | 1.55 | 5.68 | 1.06 | | B3 | 6.26 | 1.75 | 5.46 | 1.32 | | B4 | 5.32 | 1.98 | 4.84 | 0.96 | | B5 | 5.66 | 1.41 | 4.56 | 1.05 | | 平均值Average | 5.89 | 1.67 | 5.25 | 1.16 | | A2 | B1 | 5.41 | 1.69 | 4.93 | 1.18 | | B2 | 5.11 | 1.46 | 4.85 | 1.06 | | B3 | 5.00 | 1.59 | 3.46 | 0.96 | | B4 | 4.56 | 1.57 | 3.32 | 0.97 | | B5 | 4.21 | 1.57 | 3.13 | 0.93 | | 平均值Average | 4.86 | 1.58 | 3.94 | 1.02 | 小花分化期
Floret differentiation period
| A1 | B1 | 24.63 | 4.11 | 22.58 | 4.36 | | B2 | 21.08 | 4.13 | 21.88 | 3.72 | | B3 | 22.20 | 4.26 | 20.32 | 3.98 | | B4 | 19.95 | 4.30 | 20.39 | 3.98 | | B5 | 20.01 | 4.03 | 20.46 | 3.49 | | 平均值Average | 21.57 | 4.17 | 21.13 | 3.91 | | A2 | B1 | 18.28 | 3.83 | 21.37 | 3.95 | | B2 | 17.74 | 4.13 | 17.69 | 3.15 | | B3 | 14.49 | 4.11 | 17.93 | 3.49 | | B4 | 14.43 | 4.08 | 17.18 | 3.02 | | B5 | 13.44 | 3.89 | 17.12 | 3.09 | | 平均值Average | 15.68 | 4.01 | 18.26 | 3.34 |
|
|
|