盐胁迫对棉花种子萌发及幼苗生长的影响  

Effects of Cotton Seeds Germination and Seedling Growth Under Salt Stress

作　　者：谢德意[1] 王惠萍[1] 王付欣[1] 冯复全[1] 

机构地区：[1]河南省农科院经作所,郑州450002

出　　处：《种子》2000年第3期10-11,13,共3页Seed

摘　　要：研究了 Na Cl对豫棉 1 5号种子发芽和幼苗生长的影响 ,结果表明 :低浓度的 Na Cl (0 .4%以下 )能促进种子萌发 ,而高浓度 (>0 .7% )时则显著抑制 ;无论盐浓度高低 ,都对棉花幼苗生长产生抑制作用 ,当 Na C1浓度超过 0 .5 %时 ,幼茵的主根长、子叶面积。The effects of salt stress on Yumian 15 cotton seeds germination and seedling growth were investigated, The results showed, low NaCl content(<0.4%)could enhance seeds germination, high NaCl content(>0.7%)obviously suppressed seeds germination. However low or high concentraction of NaCl all suppressed cotton seedling growth, when concentraction of NaCl was over 0.5%, the root length, cotyledon area and dry weight of seedling were lower contrast obviously.

关 键 词：盐胁迫 棉花 发芽率 幼苗生长 干物质积累 

分 类 号：S562.01[农业科学—作物学] Q945.78[生物学—植物学]