期刊论文

Effects of BR application on the growth and physiological characteristics of Tung tree seedlings at different temperatures

中文

经济林研究

1003-8981

2018

36

3

17-24

10.14067/j.cnki.1003-8981.2018.03.004

“十三五”国家重点研发计划项目（2017YFD0601304）；

本校为第一机构

选取1年生油桐幼苗为试验材料,研究不同温度下油菜素内酯（BR）对油桐幼苗生长及生理特性的影响。结果表明：8℃和38℃2种不同温度胁迫下,2个油桐物种幼苗生长减缓,叶片及栅栏组织变薄,叶绿素含量和SPAD值下降,过氧化物酶（POD）和超氧化物歧化酶（SOD）活性升高,可溶性糖和可溶性蛋白含量增加,丙二醛（MDA）含量上升。相同温度下,叶片喷施BR可以使油桐幼苗生长量增加,叶片及叶片栅栏组织加厚,叶绿素含量和SPAD值上升、POD和SOD活性增加,可溶性糖和可溶性蛋白含量提升,叶片相对含水率（RWC）增加,MDA含量降低。说明BR可以减轻温度胁迫对油桐叶片的抑制程度,增强油桐叶片的生理功能,提高叶片内各...

This study focused on the effects of Brassinolide（BR） on growth and physiological characteristics of Tung tree seedlings under different temperatures. The results showed that the growth of two Tung tree seedlings was slowed down leaf and palisade tissue became thinner, chlorophyll content and the value of SPAD decreased, the activity of peroxidase （POD） and superoxide dismutase （SOD） increased, soluble sugar and soluble protein content increased, and malondialdehyde （MDA） content increased under 8 ℃ and 38 ℃ . At the same temperature,...