摘要
为了筛选既有利于促进幼苗生长又可提高苗木抗旱性的园丰素喷施浓度,采用盆栽完全随机试验设计方案与方法,设喷施的园丰素药液分别为10 000、2 000、1 000、200倍液(芸苔素内酯分别为0.01、0.05、0.10、0.50 mg.L-1),以不喷药的作为对照,就不同处理对圆齿野鸦椿幼苗的苗高与根长及干旱胁迫下其叶片生理生化指标即过氧化物酶(POD)、超氧化物歧化酶(SOD)活性和丙二醛(MDA)、脯氨酸(Pro)、可溶性蛋白质(SP)含量)的影响情况进行了试验研究,并利用隶属函数法对各处理的抗旱生理指标进行了分析,综合评价了各处理苗木的抗旱性。结果表明:喷施园丰素能促进圆齿野鸦椿幼苗的生长,提高苗木的抗旱性;园丰素的最佳喷施浓度为2 000倍液(芸苔素内酯为0.05 mg.L-1)。
In order to screen out Garden Fengsu spraying concentration in favor of promoting seedling growth and improving seedling drought resistance, effects of spraying different concentrations on height, root length and some physiological and biochemical indicators （POD and SOD activities, MDA, Pro and SP contents） in Euscaphis konishii were researched by potted completely randomized design, including 10 000, 2 000, 1 000, 200 times dilutions and CK （No spraying）, and mass concentrations of brassinolide were 0.01, 0.05, 0.10, 0.5mg·L^-1, respectively. The indicators of drought resistant physiological were analyzed by subordinate function method, and drought resistant was evaluated. The results show that spraying Garden Fengsu can promote seedling growth and improve seedling drought resistance, and the optimal sorav concentration is 2 000 times （brassinolide 0.05mg·L^-1）.
出处
《经济林研究》
北大核心
2013年第2期121-124,共4页
Non-wood Forest Research
基金
中央财政林业科技示范与推广项目(〔2010〕JXTG-07-02)
上海威敌生化有限公司(南昌)产学研合作项目
南昌市科技项目(洪财企〔2012〕80号农业支撑4-2)
关键词
圆齿野鸦椿
幼苗
园丰素
生长
抗旱性
生理生化指标
Euscaphis konishii
seedling
Garden Fengsu
growth
drought resistance
physiological and biochemical indicators
