Bolete (Boletus colossus Heim.) spawn affecting vegetative growth of Carica papaya L. 'Mexico-Kaset'
2011
Prapaporn Tangkijchote(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Horticulture) E-mail:[email protected] | Munchanee Khieowichai(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Horticulture) | Kawit Wanichkul(Kasetsart University. Kamphaeng Saen Campus, Nakhon Pathom (Thailand). Faculty of Agriculture at Kamphaeng Saen. Department of Horticulture)
Bolete (Boletus colossus Heim.) spawn affecting the vegetative growth of Carica papaya L. 'Mexico-Kaset' was studied. This experiment had 4 treatments (spawn quantities): without spawn, inoculated spawn at 10, 20 and 30 grams per plant, applied at the same time as transplanting. The data were recorded every 15 days from transplanting to 105 days after transplanting. The results showed that the application of bolete spawn resulted in the significant increase of the trunk collar diameter, the height from soil surface to top, the number of new leaves, the canopy diameter, and leaf area of papaya plants. The inoculation of bolete spawn at 30 grams per plant had the maximum response, followed by the inoculation of that spawn at 20, 10 grams per plant, and uninoculation, whereas the leaf chlorophyll content (SPAD unit) of the mature leaves did not differ significantly. Moreover, the utilization of more spawn quantities tend to increase more growth of papaya seedlings than less spawn and uninoculation.
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