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ISSN : 2456-8643

Title:
COMBINING ABILITY ANALYSIS FOR YIELD AND SOME OF ITS ASSOCIATED CHARACTERS IN CUCUMBER (CUCUMIS SATIVUS L.)

Authors:
Umeh Ogechukwu Anulika, Ngwuta Agwu Abraham, and Anyanwu and Chinyere PRISCA ,Nigeria

Abstract:
Four genetically diverse parents were selected and crossed in a full diallel mating design involving the parents, direct F1s and reciprocal F1s. These parents were evaluated alongside with their 6 direct F1s and 6 reciprocal F1s in a randomized complete block design in 3 replications. Combining ability showed the dominance of additive gene action for all the traits under study. The result showed significant differences among the parents for all the characters except for number of days to emergence. The relative magnitude of GCA / SCA variance ratio was greater than unity suggesting the preponderance of additive gene action for all the characters under investigation. Based on an overall evaluation of GCA effects and per se performance, the parents Cu 100 and Cu 999 emerged as good general combiners. Among the crosses, Cu 100 x Cu 999 was considered best because it recorded highest per se performance for fruit yield

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