Idris, Jauhari (1981) Infection Studies on Isolates of Colletotrichum Musae on the Varieties of Banana (Musa Paradisiaca) in Relation to the Effect of Leachates on Spore Germination. Masters thesis, Universiti Putra Malaysia.
Six isolates of Colletotrichum musae were isolated from six banana varieties and isolates were used for germination and infection studies. It has been found that there was a significant difference in spore size and cultural characterestic among the six isolate of Colletotrichum musae. Age of conidia affects the percentage of germination. The percentage germination of each isolate of Colletotrichum musae decreases as the culture ages. Both ripe and unripe leachates gave marked stimulatory effect on conidia of Colletotrichum musae indicating the presence of a promoter within the leachate. Self infection studies showed that inocula of each banana isolate infected its own variety of host fruit. Percentage infection in unripe wounded fruits were much lesser than percentage infection on ripe wounded and ripe unwounded fruits under similar conditions. Cross infection studies showed that isolates from different varieties of banana infected other varieties of banana fruits. It was also observed that Pisang berangan and nangka were more susceptible than the other varieties. Isolates of Pisang rastali and Pisang abu were the most virulent.
|Item Type:||Thesis (Masters)|
|Subject:||Banana - Analysis|
|Call Number:||FSAS 1981 6|
|Faculty or Institute:||Faculty of Environmental Studies|
|Deposited By:||Nurul Hayatie Hashim|
|Deposited On:||01 Dec 2010 15:30|
|Last Modified:||01 Dec 2010 15:33|
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