BN系列生长调节剂在油菜上的应用效果初报

研究结果表明：在油菜的抽薹期和初花期以清水为对照，分别喷洒BN－1型浓度为4mg/kg,6mg/kg,8mg/kg和BN－2型浓度为2mg/kg,4mg/kg,6mg/kg的生长调节剂均能使油菜角果变宽，表面积增加，光合面积增大，促进了光合产物的形成 和积累，对籽粒浆增生起到了重要作用，油菜单株产量显著提高，在油菜抽薹期以BN－1型浓度为8mg/kg的效果良好，初花期则以BN－1型6mg/kg的效果最好，另外BN－1型浓度6mg/kg的处理对油菜抽薹速度有显著的促进作用，BN－2型4mg/kg次之。

Application Effect of BN Series of Growth Regulator on Rape

The research showed that when BN 1 type of growth regulator with concentration of 4mg/kg, 6mg/kg, 8mg/kg and BN 2 type with concentration of 2mg/kg, 4mg/kg and 6mg/kg, with respect to water, were sprayed at the bolting and initial flowering stages of rapes, their pods, surface area and photosynthesis area could be enlarged, and the formation and accumulation of photosynthesized product be promoted, which played an important role in increasing the weight and improving the milking of rape seed, with the yield of single plant greatly increased. For BN 1 type, concentration of 8mg/kg and 6mg/kg were most effective to bolting and initial flowering respectively. In addition, BN 1 type with concentration of 6mg/kg had a remarkable effect on accelerating bolting, and the effect of BN 2 type with concentration of 4kg/mg was next to it.