化控剂对东北春玉米茎秆理化特性及抗倒伏的影响

樊海潮,顾万荣,杨德光,尉菊萍,朴琳,张倩,张立国,杨秀红,魏湜

Effect of Chemical Regulators on Physical and Chemical Properties and Lodging Resistance of Spring Maize Stem in Northeast China

Hai-Chao FAN,Wan-Rong GU,De-Guang YANG,Ju-Ping YU,Lin PIAO,Qian ZHANG,Li-Guo ZHANG,Xiu-Hong YANG,Shi WEI

表4 玉米灌浆初期茎秆木质素合成相关酶活性与木质素含量的相关系数

Table 4 Correlation coefficients between related enzyme activities and lignin content of stem in the early filling stage of maize

指标 Index 木质素含量 Lignin content PAL活性 Phenylalaninammo- nialyase activity 4CL活性 4-coumarate: CoA ligase activity CAD活性 Cinnamyl-alcohol dehydrogenase activity TAL活 Tyrosine ammonia lyase activity 木质素含量 Lignin content 0.25 0.51* 0.89** 0.38 抗折力 Snapping resistance 0.29 0.64** 0.68** 0.33 0.58* 抗倒伏指数 Lodging resistance index 0.67** 0.48 0.39 0.66** 0.49