摘要
从不同林型下分离获得的外生菌根真菌纯培养菌株中 ,选择了其中劣味乳菇、赫丝膜菌、褐环乳牛肝菌、毛边滑绣伞4株优良菌种 ,对油松人工幼林(5年生)进行菌剂混合接种试验。结果表明 :采用外生菌根真菌对油松幼林接菌 ,能够使土壤微生物种群数量发生变化 ;接菌后的土壤中的细菌、真菌、放线菌总数比不接菌的有明显的增加 ,其中真菌增加732.35 %。对接菌油松进行菌根侵染调查发现 ,接菌后的油松菌根侵染率为75 % ,不接菌的为20 % ;对连续两年接种菌剂的油松幼林调查发现 ,与不接菌剂的相比施用菌剂的油松地径、株高显著增加。由此认为 。
In ectomycorrhiza fungi strain separated from the different forest types, Lavteriuslsus Fr., Cofinarus russus Fr., Suillus lufeus(L.) Grsyand hedloma mesophaeum (Fr.)Quel were chosen, and inoculated to man-made Pinus tabulaeformis Carr. Forest whose age was 5. The results showed that: Population quantity of microbe changed after inoculation, the total quantity of bacteria,fungi and actinomycetes were obviously more than that of uninoculation, fungi increase 732.35% in the young Pinus tabulaeformis Carr. Forest inoculated by mycorrhizal fungi. Through investigation, we found the ratio of mycorrhizal invasion was 75% after inoculation, however that of uninoculation was 20%. Investigating increment of Pinus tabulaeformis Carr.Forest inoculated in a series of two years, we found that using strain can increase the growth in basal diameter and DBH(diameter at breast height). So mycorrhizal fungi can act as a bio-inoculation technology, it owns important ecologial benefits in reforming low value forest.
出处
《沈阳农业大学学报》
CAS
CSCD
2001年第4期274-277,共4页
Journal of Shenyang Agricultural University
基金
国家"九五"攻关部分内容 (96 -007-01 -06)
