Granulated inoculum production of vesicular-arbuscular mycorrhizal fungi
2004
Phakphen Phumphan(Kasetsart University. Bangkhen Campus, Bangkok (Thailand). Faculty of Agriculture. Department of Soil Science)
Effect of host cropping system on innoculum propagation of 4 species of Vesicular-Arbuscular Mycorrhizal Fungi (VAMF), Glomus aggregatum, Gl. etunicatum, Gl. aggregatum and Gl. intraradices was studied in sorghum (Sorghum bicolor). It was found that the intensity of VAMF root colonization and number of spore of Gl. aggregatum, GI. Geosporium and TI. intraradices which grown in Leonard jar assembly were significantly increased in comparing to other cropping systems. The intensity of VAMF root colonization and number of spore of Gl. aggregatum, which grown in Leonard jar assembly, was the highest. Other host cropping systems, however, did not show these effects on GI. etunicatum. The granulated inoculum production of VAMF was produced using inoculum of GI. aggregatum fine compost and rock phosphate at the rations of 100:0:0, 80:15:5, 60:35:5 and 40:55:5 by weight as growing media. Corn (Zea mays) was using as the host plant to propagate granulated inoculum in pot. At 6 week, the intensity of VAMF colonizated on corns root and number of spore in granulated inoculum of 100:0:0 ratio was significantly higher than other granulated inoculum. At 11 week, the intensity of VAMF root colonization and number of spore in granulated inoculum of 100:0:0 ratio was significantly higher than granulated inoculum of 40:55:5 ratio, but not differ from granulated inoculum of 80:15:5 or 60:35:5 ratio.
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