去花对菊芋数量学性状的影响

Effect of Deflorate on Quantitative Trait of Helianthus tuberosus L.

以白皮菊芋为试材,通过对现蕾期菊芋去除1/4花、1/3花、1/2花、全部去除和不去花等5个处理,测定叶片、小花、分枝和块茎数量等相关指标,探讨了去花对菊芋数量学性状的影响规律,为提高菊芋块茎生物产量提供理论依据。结果表明:去花1/3、1/2和全株去花提高了单株菊芋块茎数量,降低单株块茎质量,1/4去花对菊芋单株块茎数量和单个块茎质量影响不显著;去花处理降低了二级分枝和一级分枝的数量;去花处理增加了单株叶片的数量和单片叶片的质量;随着去花数量的增加,单株小花数量呈现"降-升-降"的变化规律,单个小花质量呈现"降-升"的变化趋势。

Taking Helianthus tuberosus L.as material,by testing leaf number,flower number,branch number,tuber number after removing flower 1/4,1/3,1/2,total flowers and control,the effect of deflorate on quantitative trait in Helianthus tuberosus L.was studied.The results showed that the tuber number was improved and single tuber weight was decreased under removing flower 1/3,1/2and total flowers,and there was no remarkable influence on between removing 1/4flower and control;the number of branch was decreased by removing flower;the single leaf weight and number of leaf were improved by removing flower;changing trend of single plant flower number indicated‘fall-rise-fall＇,and single flower weight indicated‘rise-fall＇with the increase removing the number of flowers.