期刊论文

中文

湖南林业科技

1003-5710

2014

5

1-4

10.3969/j.issn.1003-5710.2014.05.001

湖南省林业科技计划项目（XLK201456） 国家十二五科技支撑项目（2011DAD22805）.

本校为第一机构

对蓖麻幼苗喷施不同浓度的植物生长调节剂（IAA、6-BA、GA3、KT），并以清水处理为对照，观测分析植物生长调节剂对蓖麻营养生长及生殖生长的影响。结果表明：100 mg/L的IAA、100～200 mg/L的6-BA、200 mg/L的GA3和100～200 mg/L的KT对蓖麻的地径和株高均有促进作用，KT则提早了始花期；IAA延迟了蓖麻的始花期，但提高了蓖麻花序总长度和雌花序的长度。其中200 mg/L IAA分别使花序总长度和雌花序长度增长了26.38％和56.17％。植物生长调节剂影响种子的大小和色泽，对种子含油率无明显影响。

According to field experiments,the effects of different plant growth regulators on vegetative growth and repro-ductive growth of Ricinus communis were observed and analyzed based on the experiments of treating castor with different kinds of hormone （IAA,6-BA,GA3 ,and KT）,and take water treating as control.The results indicated that the stem diameter and plant height were increased by 100mg/L IAA,100～200mg/L 6-BA,200mg/L GA3 ,100～200mg/L KT. Then the flowering time was advanced by KT.Though the flowering time was longer by IAA,total inflores...