泸州荔枝果园AM真菌菌根及孢子数量调查与分析-柑桔研究所.PDFVIP

,Journal of Anhui Agri. Sci.2007,35(22) :6701- 6702 陈娟 俞洁 AM 1 1 2 2 2 姜国金 ,许兰珍 ,杨晓红 ,王容春 ,朱邦松 (1. , 400712; 2., 400715) [ 目的] 对泸州荔枝园AM真菌进行调查,确认荔枝菌 类型, 了解果园土壤中AM 真菌孢子种群数量的大致情况[ 方法] 利用 / 湿筛法0 和Phllips Hayman 的方法对3 个泸州荔枝果园春季的土壤AM 真菌进行了调查分析[结果] 荔枝菌 是内生菌 , 共生真菌 为囊泡) ) ) 丛枝菌 真菌,即AM 真菌春季的菌 感染率在9%~ 32%之间, 普遍低于25% A 菌 感染率的平均值在 15% ~ 21% 之间,低于25%三个荔枝园每25g 土样中AM真菌孢子数平均值为869? 76 个[结论]果园生草或对果园进行有机覆盖, 是促进荔枝 生长, 增加荔枝果实产量, 改善荔枝果实品质的 一种绿色环保途径 荔枝;AM 真菌; 孢子数量; 菌 感染率 S436.611 A 0517- 6611(2007)22- 06701- 02 Investigation and Analysis on Mycorrhize and Spore Quantity of AM Fungi in Luzhou Litchi Orchards JIANG Guo- in et al (Institute of Citrus, Chinese Academy ofAgriculturalSciences, Chongqing 400712) Abstract [Objective] The purpose was to investigate AM fungi inLuzhou litchiorchards, confirm mycorrhize type associatedwith litchi and know the approximate situations of sporespopulation quantity of AM fungi in orchard soil. [Method] The AM fungi in soil of 3litchi orchards of Luzhou inspring were investigatedandanalyzed by/ wet screening0 andPhillips Haymanmethods. [Result] Litchimycorrhizewasendomycorrhiza andits symbiotic fungi were vesicle-arbuscular mycorrhizal fungi, being AM fungi. The mycorrhizal infection rate in spring was between 9% and32%, being lower than 25% generally. The average of A mycorrhizal infection rate was between 15% and 21%, being lower than 25%. The average spore number ofAM fungi in every 25 g soil sample from 3 litchi orchardswas869 ? 76.[Conclusion] Orchardwithgrass or orchardwithorganic coveragewas a green environmental protectionway to promote the growth, increase fruit yield of litchi and improve fruit quality of litchi. Key words Litchi; AM fungi; Spore number; Mycorrhizal infection rate 1,6 1. 3 18 (2~ 3cm