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MARC Record
Bibliographic Data
Control Number
57714
Date and Time of Latest Transaction
20060619142643.2
General Information
060619s |||||||||b ||00|||
Cataloging Source
PCARRD-DOST
Main Entry - Personal Name
Ramirez, Dolores A.
Main Entry - Uniform Title
ENGLISH
Title Statement
Genetic control of sex expression in selected fruit crops exhibiting hermophroditism and androeciousness
General Note
College, Laguna: UPLB, 1987. 54p. -(UPLB Project No. 85-8)
Summary, Etc.
Male, female and hermaphrodite trees of papaya, pili, and rambutan were differentiated by isoenzyme pattern analysis and thin layer chromatography. Isozyme patterns of papaya showed that sexually mature female, male and hermaphroditic trees can be distinguished through the esterasezymogram pattern. Female trees showed two bands with Rf values of 0.17 and 0.25, respectively. The hermaphrodites showed the slow moving band, Rf=0.17 and the males showed only the fast moving band, Rf=0.25. There was no significant differences found in total phenolic content among female, male and hermaphroditic papaya trees. However, hermaphroditic trees were characterized by a dark purple phenolic compound at Rf=0.06. Sex expression in pili could be identified by a combination of the acid phosphatase and esterase zymogram patterns. The hermaphrodites showed an acid phosphatase band at Rf=0.54; the females showed a fast moving esterase band at Rf=0.18. Two bands, Rf=0.03 and Rf=0.10 were observed in both male and hermaphrodite trees. In rambutan, the females were distinguished from males by their peroxidase zymogram patterns. Female plants showed two bands with Rf=0.16 and 0.24 while male plants showed a slow moving band at Rf=0.16. Phenolic content of leaves obtained from thin layer chromatography showed an unsatisfactory parameter to distinguish sex expression in the fruits
Subject Added Entry - Topical Term
CARICA PAPAYA
CANARIUM OVATUM
NEPHELIUM LAPPACEUM
GENETIC CONTROL
CHROMATOGRAPHY
SEX
ANDROECIUM
Added Entry - Personal Name
Balagtas, Gloria A.
Garcia, Roberta N.
Ramirez, Eleanor G.
Burgonio, Carmen S.
Location
DOST PCARRD
Physical Location
Department of Science and Technology
Philippine Council for Agriculture, Forestry and Natural Resources Research and Development
Digital Copy
Not Available
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