Authors
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Seth Awuku Manteaw
CSIR-Head OfficePO Box M32, Accra, Ghana
West Africa
Author
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Jonathan Nicholas Anaglo
University of Ghana, P. O. Box LG68, Legon. Accra. Ghana.
West Africa
Author
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Seth Dankyi Boateng
University of Ghana, P. O. Box LG68, Legon. Accra. Ghana
West Africa
Author
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Benjamin Yao Folitse
CSIR-INSTI, PO Box M32, Accra, Ghana
West Africa
Author
Abstract
Cocoa is a sensitive plant to availability of soil water. The availability of water affects the formation of cocoa pods and beans. The aim of this research was to determine the genetic diversity and the influence of season on the diversity of cocoa beans quality as well as determining the pattern of genotype and season interaction on the quality of physical physiology of cacao beans. The research was conducted in Kaliwining Experimental Station, Indonesian Coffee and Cocoa Research Institute, Jember during dry season (2015) and rainy season (2016). This study used a complete randomized block design 2 x 12 factorial and three replicates as blocks. The first factor was the season consisting of two levels namely, dry season and rainy season. The second factor was cocoa clones, TSH 858, KW 084, KEE 2, Sulawesi 1, Sulawesi 2, BAL 209, KW 215, JTC 5A, JTC 5B, KC 2, KKM 22,and KJ 2. Observation variables included pod diameter, pod length, pod weight, dry bean weight, number of good beans/pod, number of empty beans/pod, numberof beans, and number of pods/tree/season. Data was analyzed using ANOVA fixed
factor. The bean dry weight characteristics possesed a low genetic diversity (0.27%) whereas the physical quality character of other beans, i.e bean count had moderate
genetic diversity (14.20%). Meanwhile, the real difference was shown on the dry weight of bean characteristics. The best dry bean weight was observed during the dry season. Clones KW 215 and Sulawesi 1 in the dry season was catego-rized in grade A, while the lowest quality JTC 5A with grade D. The interaction of genotype (clone) with the environment (season) resulted in a significant effect on
pod diameter character, pod weight, bean count, dry bean weight, and numberof pods/tree. Based on the biplot AMMI graph it was known that the TSH 858 clone showed genetic stability in bean count character. As for the character of
the number of pods/tree, clones KKM 22, BAL 209, and KW 084 had the stability of the number of pods in rainy and dry seasons. Clones KJ 2 and Sulawesi 2 showed season-specific in the dry season for the number of pods/tree characters.
Author Biographies
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Seth Awuku Manteaw, CSIR-Head OfficePO Box M32, Accra, Ghana
West Africa
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Seth A. Manteaw is a research scientist at the Council for Scientific and Industrial Research, Secretariat (CSIR) Accra, Ghana. He is mainly involved in agricultural extension activities and Coordinates Research-Farmer Extension Linkages programme within the Council. His research interest includes value chain analysis and agricultural policy analysis. He holds a Doctor of Philosophy Degree in Agricultural Extension from the University of Ghana, Legon, Ghana
Contact: CSIR-Head Office, PO Box M32, Accra, Ghana. Mobile: 233-244955917. Email:Â smanteaw@yahoo.com
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Jonathan Nicholas Anaglo, University of Ghana, P. O. Box LG68, Legon. Accra. Ghana.
West Africa
Jonathan N. Anaglo, .is a Senior Lecturer at the University of Ghana, Legon, Accra, Ghana. He is mainly involved in lecturing in agricultural extension at the Department of Agricultural Extension, University of Ghana. His research interest includes value chain analysis and agricultural policy analysis. He holds a Doctor of Philosophy Degree in Agricultural Extension from the University of Ghana, Legon, Ghana. Contact: University of Ghana, P. O. Box LG68, Legon. Accra. Ghana. Mobile: 233-247529255. Email: joanaglo@ug.edu.gh
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Seth Dankyi Boateng, University of Ghana, P. O. Box LG68, Legon. Accra. Ghana
West Africa
Seth D. Boateng, is a Senior Lecturer at the University of Ghana, Legon, Accra, Ghana. He is mainly involved in lecturing in agricultural extension at the Department of Agricultural Extension, University of Ghana. His research interest includes value chain analysis and agricultural policy analysis. He holds a Doctor of Philosophy Degree in Agricultural Extension from the University of Ghana, Legon, Ghana. Contact: University of Ghana, P. O. Box LG68, Legon. Accra. Ghana. Mobile: 233-207611809. Email: sdboateng@ug.edu.gh
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Benjamin Yao Folitse, CSIR-INSTI, PO Box M32, Accra, Ghana
West Africa
Benjamin Y. Folitse is a reference Librarian at the Council for Scientific and Industrial Research, Institute for Scientific and Technological Information (CSIR-INSTI) Accra, Ghana. His research interest includes factors that influence the use of agricultural information, and forging an effective linkage among researchers, extension agents and farmers. He holds a Master of Philosophy Degree in Agricultural Extension from the University of Cape Coast, Cape Coast, Ghana. Contact: CSIR-INSTI, PO Box M32, Accra, Ghana. Mobile: 233-244574419. Email:Â folitse62@yahoo.com
