【摘要】 研究了不同浓度Ca2+溶液浸种对辣木种子萌发和幼苗生长的影响。结果表明,Ca2+浓度为10mmol·L-1最有利于种子萌发和幼苗生长,其种子萌发率、发芽势、简化活力指数、根长、根数、苗高、茎粗、叶片数等均显著高于对照,随着浓度升高作用减弱,20mmol·L-1Ca2+的处理对种子萌发率和发芽势有明显的抑制作用。Ca2+浸种虽然增加了平均萌发天数,但显著提高了出苗率。更多还原

【Abstract】 The influences of seed soaking in Ca2+ solution with different concentrationson the seed germination and seedling growth of Moringa sp.were studied.Results showed that it was beneficial to the seed germination and seedling growth by using 10mmol·L-1 Ca2+ concentration.The seed germination rate,germination vigor simple vigor index,radicle length and number,seedling height,stem diameter and leaf number were conspicuously higher than CK,and were decreased by high Ca2+concentration.When the Ca2+ concentration was 20mmol·L-1,the seed germination rate and germination vigor were obviously depressed.The Ca2+ can increase the average time of the germination,but the rate of seedling emergence was markedly increased。更多还原