不同水控条件对不同基因型烤烟苗期生化特性的影响

目的]探索筛选烟草优良品种和培育优质壮苗烟草的理论和技术。方法]以云烟201、MS云87、云烟203为试材，测定其在不同水控条件下的生化指标，分析水控条件对其苗期生化特性的影响。结果]MS云87与云烟203、云烟201的硝酸还原酶活性差异显著，任意2个水控条件下的硝酸还原酶活性、蛋白质含量、可溶性糖含量均差异显著。任意2品种的蛋白质含量和可溶性糖含量差异显著：在3个不同水控条件下，MS云87的硝酸还原酶活性最高，云烟203的硝酸还原酶活性最低；云烟201的蛋白质含量最高，云烟203的蛋白质含量最低。在相同水控条件下，云烟203的可溶性糖含量最高，云烟201的最低。结论]优良品种的选择对培育优质壮苗具有决定性作用，75％的水控条件最有利于烟苗的生长．

Effects of Different Water Control Conditions on the Biochemical Characteristics of Tobaccos of Different Genotypes in Seedling Stage

Objective] The aim was to explore the theory and technique of screening good tobacco varieties and breeding high-quality and strong tobacco seedlings.Method] With Yunyan201,MSYun87 and Yunyan203 as tested materials,the effects of water control conditions on their biochemical characteristics in seedling stage were analyzed through determining their biochemical indices under different water control conditions.Result] The activity of nitrate reductase in MSYun87 was significantly different from that in Yuny...