【摘要】 研究了苜蓿霜霉病对苜蓿生理及生物学性状的影响,结果表明,苜蓿霜霉病明显影响苜蓿的生理和生物学性状,感染苜蓿霜霉病的苜蓿植株与健康植株相比,其株高下降(10.40%~36.50%)、鲜重下降(18.61~64.55%)、分枝数下降(4.92%~36.87%)、生殖枝数下降(17.90%~86.15%)、花序数下降(17.75%~87.50%)、水分含量下降(7.48%~43.02%)、叶绿素含量下降(28.42%~68.63%)。更多还原

【Abstract】 The effect of downy mildew on growth of Alfalfa was studied, the result indicated that downy mildew influenced on the growth and development of alfalfa, compared with the healthy branch, the height descend(10. 40% ～36. 50%), fresh weight descend(18.61%～64.55%), number of divide stub descend(4. 92%～36.87%), number of reproductive stick descend(17.90%～B6.15%), number of inflorescence descend (17.75%～87.50%), the water content of leaf descend (7. 48%～43. 02%), the chlorophyll content descend (28. 42%～68. 63%)更多还原