摘要
本试验以33份蒺藜苜蓿(Medicago truncatula)材料为研究对象,通过在幼苗期进行低磷胁迫处理,观察其对幼苗生长的影响,并评价不同样品对低磷的敏感性。测定植株茎色、枯叶率以及地上与地下生物量,将材料划分为中度敏感型材料、耐低磷型材料和对低磷敏感型材料3类。结果表明:102、103、107、108、111、113、114、115、116、117、118、119、120、124、125和130在5μmol/L KH_(2)PO_(4)低磷处理后生长并未受到显著影响,耐低磷能力较强,101、106、122、123、129和132在低磷处理后生长迟缓、发育不良,为敏感型材料,其余为中度敏感型材料。
In order to screen out low phosphorus resistant materials,33 Medicago truncatula materials were evaluated by measuring stem color,leaf dead rate and aboveground and underground biomass.The results showed that the growth of 102,103,107,108,111,113,114,115,116,117,118,119,120,124,125 and 130 was not significantly affected by the treatment of 5μmol/L KH_(2)PO_(4),and the tolerance to low phosphorus was the best.101,106,122,123,129 and 132 were sensitive materials with growth retardation and stunting after low Phosphorus treatment.The rest were medium sensitive materials.
作者
刘晓波
王雪
康俊梅
杨青川
LIU Xiao-bo;WANG Xue;KANG Jun-mei;YANG Qing-chuan(Liangshan Academy of Agricultural Sciences,Xichang 615000;Institute of Animal Sciences,Chinese Academy of Agricultural Sciences,Beijing 100193)
出处
《中国奶牛》
2022年第6期43-47,共5页
China Dairy Cattle
关键词
蒺藜苜蓿
低磷胁迫
幼苗期
评价
Medicago truncatula
Low Phosphorus Stress
Seeding Stage
Evaluation
