不同菌根菌对湿地松生长的影响

Effects of Different Mycorrhizal Fungi on Growth of Pinus elliottii

[目的]研究不同菌根菌对湿地松生长的影响,促进湿地松的生长。[方法]对湿地松接种不同剂量的厚环乳牛肝菌和彩色豆马勃菌,研究其对湿地松菌根侵染率、枝长生长量、叶绿素含量及土壤氮、磷含量的影响。[结果]接种厚环乳牛肝菌和彩色豆马勃菌后,湿地松根部菌根侵染率、小枝生长量及叶绿素含量得到明显提高,对湿地松而言,接种厚环乳牛肝菌的效果好于接种彩色豆马勃菌的效果;接种的剂量越多促进效果越好;接种菌根菌有利于湿地松对土壤氮、磷的吸收。[结论]对生长不良的湿地松,可采用接种菌根菌的方法促进其生长。

[Objective] The aim was to study effects of different mycorrhizal fungi on growth of Pinus elliottii.[ Method] Pinus elliottii was in-oculated with different doses of Suillus grevillei and Pisolithus arhizus, effects on mycorrhizal infection rate, branch length increment, chloro-phyll content, soil nitrogen content and phosphorus content were studied.[ Result] After inoculating with Suillus grevillei and Pisolithus arhi-zus, mycorrhizal infection rate, branch length increment and chlorophyll content was improved significantly, inoculating with Suillus grevillei was better than Pisolithus arhizus; inoculation with mycorrhizal fungi was beneficial to the absorption of soil nitrogen and phosphorus in soil. [ Conclusion] Inoculating with mycorrhizal fungi can promote growth of Pinus elliottii.