烤烟膜下小苗移栽育苗盘规格优选研究

张久权, 余祥文, 凌爱芬, 王勇, 李磊磊, 董建新

Optimal Specification of Tobacco Seedling Tray for Small Seedling Transplanting under Plastic Film

Zhang Jiuquan, Yu Xiangwen, Ling Aifen, Wang Yong, Li Leilei, Dong Jianxin

表4 各育苗盘规格主要农艺性状（播种后41d测定）

Table 4 Agronomic traits for each specification of seedling trays (measured on 41d after sowing)

育苗盘规格（孔） Specification of seedling tray (hole) 苗高 Seedling height (cm) 茎高 Stem height (cm) 茎围 Stem circumstance (cm) 真叶数 Number of leaves 根系体积 Root volume (mL) 根干重 Root weight (g) 茎叶干重 Shoot weight (g) 整株干重 Plant weight (g) 茎叶/根 Shoot/ root 叶片叶绿素含量 Leaf chlorophyll content (mg/g) 160(CK) 4.4b 2.6b 0.91b 4.7b 6.33c 0.56a 3.90a 4.46a 7.02c 0.28ab 改良160 Improved 160 5.1ab 2.9ab 0.98ab 5.7a 13.73a 0.54a 4.00a 4.54a 7.44abc 0.33a 209 4.9ab 2.9ab 0.98ab 4.3ab 12.00a 0.51a 3.37b 3.88b 6.64c 0.24b 286 5.1ab 3.1a 0.91b 4.9ab 9.97b 0.35b 2.56c 2.91c 7.23bc 0.28ab 338 5.5a 3.2a 1.40a 4.6b 8.33b 0.36b 3.25b 3.61b 8.91ba 0.30ab 504 5.2ab 3.3a 0.84b 4.5b 5.83c 0.29b 2.20c 2.49c 7.64abc 0.30ab 595 4.9ab 3.2a 0.84b 4.5b 6.33c 0.27b 2.46c 2.73c 9.21a 0.30ab