Genetic resources conservation and utilization of cacao in the Philippines

Cena R.L., . and Cabangbang R.P., . and Alcala E.A., . (2006) Genetic resources conservation and utilization of cacao in the Philippines. [Proceedings Paper]

Conservation of these genetic resources of cacao is of major economic importance in the Philippines particularly in view of lack of high yielding and disease resistance cacao clones/varieties. In 1978 the Philippines started its genetic conservation project at UPLB which was duplicated in different areas of Luzon Visayas and Mindanao. At USM 88 accessions were maintained in the gene bank and additional 77 of criollo related clones were added to the collections in the gene bank. Each accession was characterized based on morphological descriptors and 45 clones were used in the study for analysis using morphological and isozyme markers. Six enzyme systems ACP IDH MDH PER ADH and EST showed good to excellent band resolution. Three diversity groups were established for morphological analysis and 11 groups for isozyme analysis. Field performance evaluation conducted by TRRC identified SCA-12 and UF-650 as the highest yielder with 2.580 and 2.286 tons/ha respectively while hybrids introduced from Malaysia gave yield ranging from 0.664 to 1.251 tons/ha at USM BR-25 UIT 1 ICS 40 DR and P7 were found promising while farmers selection K1 K2 UF-18 and S5 gave consistentlygood yield in their plantation. These clones were submitted to the National Seed Indistry Council NSIC for registration and approved for commercial release in 2001 and 2003. Budwood/scion grove were established in 18 different sites throughout the country and served as source of scion for nursery owners and propagators for the massive expansion of cacao plantation in the Philippines.

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Abstract

Conservation of these genetic resources of cacao is of major economic importance in the Philippines particularly in view of lack of high yielding and disease resistance cacao clones/varieties. In 1978 the Philippines started its genetic conservation project at UPLB which was duplicated in different areas of Luzon Visayas and Mindanao. At USM 88 accessions were maintained in the gene bank and additional 77 of criollo related clones were added to the collections in the gene bank. Each accession was characterized based on morphological descriptors and 45 clones were used in the study for analysis using morphological and isozyme markers. Six enzyme systems ACP IDH MDH PER ADH and EST showed good to excellent band resolution. Three diversity groups were established for morphological analysis and 11 groups for isozyme analysis. Field performance evaluation conducted by TRRC identified SCA-12 and UF-650 as the highest yielder with 2.580 and 2.286 tons/ha respectively while hybrids introduced from Malaysia gave yield ranging from 0.664 to 1.251 tons/ha at USM BR-25 UIT 1 ICS 40 DR and P7 were found promising while farmers selection K1 K2 UF-18 and S5 gave consistentlygood yield in their plantation. These clones were submitted to the National Seed Indistry Council NSIC for registration and approved for commercial release in 2001 and 2003. Budwood/scion grove were established in 18 different sites throughout the country and served as source of scion for nursery owners and propagators for the massive expansion of cacao plantation in the Philippines.

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Item Type:	Proceedings Paper
Additional Information:	3 tables
AGROVOC Term:	THEOBROMA CACAO
AGROVOC Term:	GENETIC RESOURCES
AGROVOC Term:	PLANT MORPHOLOGY
AGROVOC Term:	GENETIC VARIATION
AGROVOC Term:	ENZYMATIC ANALYSIS
AGROVOC Term:	GERMPLASM COLLECTIONS
AGROVOC Term:	SCIONS
AGROVOC Term:	CLONES
AGROVOC Term:	CROPS
AGROVOC Term:	PHILIPPINES
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:26
URI:	http://webagris.upm.edu.my/id/eprint/15642

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