Effects of Seaweed Extract on Drought Resistance of Different Sugarcane Varieties
Seaweed extract,as a biostimulant,can improve the drought resistance of crops,but there are few reports about whether it has the same effect on different varieties of the same crop.In this study,the drought resistance of seaweed extract to 10 different varieties of sugarcane was evaluated by pot experiment,and the application effect of seaweed extract under different drought stress was evaluated.According to the magnitude of drought resistance coefficient of different sugarcane varieties and the increasing range of seaweed extract to sugarcane drought resistance coefficient,10 sugarcane varieties were divided into four types:Type I:drought resistance&high response to seaweed extract(ROC22,Yuetang94-128);Type II:drought resistance&low response to seaweed extract(Yacheng07-71,Yuetang00-236);Type III:drought sensitive&high response to seaweed extract(Guitang02-467,Funong41,Yuetang03-393,Yuetang93-159,Yuetang03-373)and Type IV:drought sensitive&low response to seaweed extract(Haizhe22).The effect of seaweed extract on the drought resistance of sugarcane under different drought conditions showed that the application of seaweed extract had better relief effect on drought-sensitive variety Yuetang03-393 under mild and moderate drought conditions,and better relief effect on drought-resistant variety ROC22 under moderate drought stress.
国家科技期刊平台
NSTL
万方数据
维普
