摘要
以四川主推的3个鸭茅(Dactylis glomerata L.)饲用型品种宝兴、滇北和川东为研究对象,对其进行多胺浸种及干旱处理。通过测定其相对发芽率、相对发芽势、发芽率、相对根长、相对苗长、相对胚芽鞘长等指标,研究多胺浸种对鸭茅抗旱性的影响。结果表明:PEG胁迫降低了3个鸭茅品种的发芽能力、发芽速度及活力,抑制了胚根、胚芽及胚芽鞘的生长。综合各指标评定,3个鸭茅品种种子萌发期的抗旱性表现为宝兴>滇北>川东。精胺和腐胺浸种能不同程度提高3个品种抗旱性,且精胺浸种对宝兴和滇北品种的作用较腐胺更为显著。
Three kinds of Orchardgrass （Dactylis glomerata L. ） BaoXin, DianBei and ChuanDong were investigated, he effects of polyamines presoaking on drought resistance of orchardgrass w studied. The results indicated that the germination ability, the germination force and the vigor index of the three kinds of orchardgrass . he growth of the rootthe seedling and the coleoptile, the indexes and comprehen- sively consideration, the resistances of drought stress w BaoXin 〉 DianBei 〉 ChuanDong. Spin and Put could improve the resistance of the three kinds of Orchardgrass, and Spin on BaoXin and DianBei than that of Put.
作者
季杨
梁小玉
易军
胡远彬
JI Yang LIANG Xiao-yu YI Jun FU Yuan-bing(Sichuan Animal Science Academy, ChengDu, Sichuan, 610066)
出处
《草学》
2017年第3期36-40,共5页
Journal of Grassland and Forage Science
基金
四川省公益性科研院所基本科研项目(编号:SASA2014A01)
四川省"十三五"饲草育种公关项目(编号:2016NYZ0039-4)资助
关键词
鸭茅
多胺
种子萌发
抗旱性
orchardgrass
drought resistance
seeds germination
polyamines
