摘要
通过测定耐盐碱性不同的3个高粱品种在混合盐碱胁迫下的农艺性状和相关生理指标,研究高粱全生育期农艺性状及生理指标对混合盐碱胁迫的响应,结果显示:高粱在整个生育时期随着盐碱胁迫的加强,净光合速率、蒸腾速率、气孔导度、叶绿素含量基本呈下降趋势,胞间CO_2浓度则呈上升趋势。盐碱胁迫使高粱提前成熟,降低了各个高粱品种的株高、茎粗、穗重、千粒重等各项农艺指标值,不同品种对胁迫的响应存在差异。
The agronomic traits and related physical signs of 3 sorghum cultivars under saline-alkali stress were investigated through the whole growth period. Results showed that net photosynthetic rate, transpiration rate, stomatal conductance, chlorophyll content decreased but intercellular CO2 concentration inncreased with the increase of salinealkali stress. Mixed salt and alkali stress shortened the growth period of sorghum, and reduced the plant height, stem diameter, ear weight and grain yield. The responses of different varieties to the stress was significantly different.
出处
《作物杂志》
CAS
北大核心
2017年第1期100-106,共7页
Crops
基金
河北省应用基础研究计划(15962905D)
河北省教育厅青年基金(QN2015077)
关键词
混合盐碱胁迫
光合效率
农艺性状
Salt and alkali stress
Photosynthesis rate
Agronomic traits
