Reproductive Characteristics of the Selected Cocoa (Theobroma cacao L.) Clones after Regenerated from the Somatic Embryogenesis Culture

Gibson, Entuni and Hollena, Nori and Rebicca, Edward and Ahmad Kamil, Bin Mohd Jaafar (2021) Reproductive Characteristics of the Selected Cocoa (Theobroma cacao L.) Clones after Regenerated from the Somatic Embryogenesis Culture. TRENDS IN SCIENCES, 18 (24). pp. 1-9. ISSN 2774-0226

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Abstract

This study was conducted to evaluate the reproductive characteristics of 4 elite cocoa clones (MCBC1, PBC230, KKM22 and KKM4) propagated via somatic embryogenesis culture. From the findings, all clones have similar reproductive characteristics with clones from conventional grafted. However, only KKM4 clone from immature zygotic embryo culture produced the shortest staminode to style distance of 1.83 mm. This consequently influenced flower stability by reducing the efficiency of pollination by insects. It was found that this clone also has the highest number of flowers drop after anthesis (5 flowers) and lowest production of cherelle (5 cherelles).Further observation revealed that floral development from first bud visible (BBCH51) to flower anthesis (BBCH68) of all clones took around 31 days. These cocoa flowers which remained receptive soon after anthesis at 10 am (day-31)until the next day (day-32) suggesting 2 days’ period of receptivity.

Item Type: Article
Uncontrolled Keywords: Cocoa, Somatic embryogenesis, Reproductive, Pollination, Stigmatic receptivity
Subjects: S Agriculture > S Agriculture (General)
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Nori
Date Deposited: 30 Dec 2021 00:10
Last Modified: 30 Dec 2021 00:10
URI: http://ir.unimas.my/id/eprint/37577

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