苎麻品种圆叶青不同生育期抗旱性差异研究

Studies on Differences among Growth and Development Stages in Drought Resistance in Ramie Variety Yuanyeqing

采用盆栽干旱胁迫方法对苎麻品种圆叶青不同生育期抗旱性差异进行了研究,结果表明:在干旱胁迫下,苎麻品种圆叶青农艺性状、干物质积累和产量的胁迫指数均以苗期>工艺成熟期>旺长期,旺长期是苎麻品种圆叶青干旱胁迫敏感期。

There are highly significant difference in drought resistant ability fo r different stages of ramie growth and development.Drought str ess index of agronomic characters.A mount of dry mater and fiber yield of ramie was ones in the stage of seedling to crop closing>ones in the stage of brown basal stem to2/3brown stem >ones in the stage of crop closing to brown basal stem.The stage of crop closing to brown basal stem was the drought -sen sitive stage of ramie.