摘要
采用盆栽试验,研究了在模拟干旱胁迫下喷施植物生长调节剂对大豆幼苗生长发育和生理生化指标的影响。结果表明,植物生长调节剂可促进大豆幼苗茎叶生长和主根伸长,增加侧根数,加大根冠比,提高叶绿素含量、脯氨酸含量和过氧化物酶(POD)活性,从而增强了植株的抗旱能力。喷施宝、云大120、地中宝、福施壮4种植物生长调节剂对不同大豆品种幼苗生长的影响基本一致,以喷施宝的效果最好,其次为云大120。
The effects of spraying plant growth regulator under drought stress on seedling growth and physiological and biochemical indexes of soybean were studied based on pot experiment. The results indicated that the plant growth regulator could increase plant height, main root length, lateral root number, root/shoot ratio, chlorophyll content, proline content and the activity of peroxydase（POD）, and improve the ability of drought-resistance of soybean seedlings. Among the 4 plant growth regulators used in this experiment, PSB was the best effective for the drought-resistance of soybean seedlings.
出处
《水土保持学报》
CSCD
北大核心
2005年第4期190-192,195,共4页
Journal of Soil and Water Conservation
基金
安徽省"十五"重点项目"安徽主要旱粮作物抗旱品种筛选及节水技术研究"(04023042)
关键词
植物生长调节剂
干旱胁迫
大豆
幼苗生长
生理生化指标
plant growth regulator
drought stress
soybean
seeding growth
physiological and biochemical index
