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Researcher Yallappa, M.
Advisor Mallesha, B. C.
Source KrishiKosh-Indian National Agricultural Research System
Content type Text
Educational Degree Doctor of Philosophy (Ph.D.)
File Format PDF
Language English
Subject Domain (in DDC) Technology ♦ Agriculture & related technologies
Subject Keyword Agricultural Microbiology ♦ Functional Diversity of Yeasts In Plantation and Fruit
Abstract Leaves and fruits samples of plantation (Coffee, Cardamom and Cocoa) and fruit (Sapota, Guava, Carambola and Ficus) crops were collected from Hassan district along with their geographical coordinated points. Totally 84 yeast isolates were isolated from leaves and fruits. All 84 yeast isolates morphological characteristics were studied and screened for wine production, biocontrol activity and plant growth promotional activities. Greenhouse evaluation of selected efficient yeast isolates for plant growth promotion in tomato crop was studied. Among 84 yeast isolates maximum alcohol content (6.25 %) was recorded by MZF- 1 in wine production, higher IAA was produced by TCL -1 (0.387 μg/ml) and maximum GA3 was produced by the MZL -1 (0.642 μg/25ml). The yeast isolate TCL -1 recorded maximum plant growth parameters in spraying and root dip method of inoculation in the greenhouse experiment. Yeast isolate ACL – 1 showed higher per cent inhibition of Pythium sp. (29.41 %), Fusarium sp. (23.52 %) and Rhizoctonia solani (18.18 %). Based on the partial sequence of 18S rRNA gene of the yeast isolates MZF-1 isolate is identified as Candida boidini, TCL-1 as Meyerozyma caribbica, MZL-1 as Candida dosseyi and ACL-1 as Candida intermedia from the sequence analysis and compared with other 18S rRNA gene sequences of yeasts from database (NCBI).
Educational Use Research
Education Level UG and PG
Learning Resource Type Thesis
Publisher Place Bangalore
Size (in Bytes) 4.14 MB
Page Count 142