摘要
以不同浓度 B9溶液喷施香椿苗木 2～ 3次 ,2 5 0 0 mg· L- 1B9作用最显著 ,可使植株低矮粗壮 ,顶梢下第一复叶变长 ,增加叶片叶绿素含量 ,提高光合速率和比叶重。处理后的落叶苗木移入日光温室中 ,可明显减少休眠芽萌发所需的有效积温 ,从而利于提早上市。 B9处理后单株新芽数量。
B 9 solution was sprayed upon the top of Toona sinensis seedlings with different concentrations for three times.Treatment of 2 500 mg·L -1 B 9 was effective in retarding plant height,increasing growth of the first multiple leaf.After treatment,the seedlings became short and strong.B 9 had a significant effect on increasing chlorophyll content,raising net photosynthetic rate and specific leaf weight,promoting the initiation of new buds and enhancing the content of soluble sugar and crude protein.Therefore,B 9 soluble could increase the yield and improve the quality of buds.B 9 treatment could also shorten the time of bud production in Toona sinensis .
出处
《西北植物学报》
CAS
CSCD
2001年第6期1194-1198,共5页
Acta Botanica Boreali-Occidentalia Sinica
基金
陕西省农发办推广项目
关键词
B9
香椿
生长发育
萌芽
生长延缓剂
Toona sinensis
B 9 treatment
growth
new buds germination
