AM真菌与根瘤菌接种对菜豆生长的影响

以泰国无筋地豆为试材,在温室盆栽的条件下,分别单接种丛枝菌根真菌(AM)、单接种根瘤菌(RH)、双接种丛枝菌根真菌和根瘤菌(AM+RH),以不接种为对照(CK),研究不同接种方式对菜豆植株生长、结瘤、单株总荚质量、AM菌根侵染率、植株氮磷含量及吸收量、单株黄叶率等的影响。结果表明:双接种AM+RH能显著促进菜豆植株的生长,植株总干质量比单接种AM、单接种RH和CK分别增加34.3%、82.3%和57.9%;双接种AM+RH可提高菜豆单株总荚质量,促进菜豆植株对氮、磷元素的吸收,全株吸磷量比单接AM、单接RH和CK分别增加42.1%、314.8%和325.4%,全株吸氮量比单接种AM、单接种RH和CK分别增加36.8%、45.1%和43.4%;AM真菌与RH具有协同促进的作用,且AM真菌能有效提高菜豆的抗性,减少叶片变黄的比率,减轻了病害为害程度。

Effects of Inoculations of Glomus mosseae and/or Rhizobium on Potted Bean Growth

Under greenhouse condition，common bean（Phaseolus vulgaris Linn.）‘Taiguowujindidou’was sowed in pots to estimate the effects of different inoculation ways on bean’s plant growth，nodulation，total pod weight of single plant，AM colonization rate，nitrogen and phosphorus contents and absorption of bean plant. When seeding，the beans were inoculated with Glomus mosseae（AM），rhizobia（RH），Glomus mosseae and
rhizobia（AM+RH），and the beans without inoculation were taken as the control（CK）. The results indicated that dual inoculation（AM+RH） could obviously promote the plant growth of beans. Compared with inoculation with Glomus mosseae（AM），rhizobia（RH）and none（CK），the plant total dry weight of the beans inoculated with AM+RH increased 34.3%， 82.3% and 57.9%， respectively. Besides，the dual inoculation could increase the total pod weight of single plant and promote bean’s absorption of nitrogen and phosphorus. The phosphorus absorption of total plant was increased by 42.1%， 314.8% and 325.4%， respectively than that by AM，RH and CK. While，the nitrogen absorption of total plant was increased by 36.8%，45.1% and 43.4%，respectively than that by AM，RH and CK. The Glomus mosseae and rhizobia had synergistic effect on common bean，and the Glomus mosseaecould effectively improve bean’s resistance，reduce the yellow leaf ratio，and thus decrease the occurrence of diseases.