Pollen fertility and viability study of the Philippine Mussaendas at the U.P. College of Agriculture

Date

4-1972

Degree

Bachelor of Science in Agriculture

Major Course

Major in Agronomy

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Laures T. Empig

Co-adviser

Grace Romero-Price

Abstract

Pollen viability and fertility in thirteen ornamental Mussaendas were studied using iodine potassium iodide and sucrose test, respectively. Six ornamental Mussaendas allowed 100% pollen sterility, namely, Mussaenda philippica A. Rich. (Female Kahoy dalaga), Hybrid No. 2 (resembling Doña Trining), Hybrid No 9 (Resembling Gining Imelda), Hybrid No. 14 (an unnamed hybrid), Doña Luz and Queen Sirikit. In seven other cultivars - M. philippica (male kahoy dalaga), Doña Leonila, Esperanza, Aurora and alicia, Aurora hybrid and Seeded Aurora - pollen fertility and viability ranged from 19.80 and 20.74 to 69.33 and 88.14% respectively.

Another color did not show any relationship with pollen fertility. All long styled cultivars were observed to set fruit naturally, with an exemption of the Aurora hybrid. Of the nine short-styled cultivars, only Seeded Aurora and Hybrid No. 14 (a unnamed hybrid) set fruit naturally. Cultivars producing fruits naturally were the same cultivars which produced fruit upon artificial pollination. the pollen sterile Hybrid No. 2 is not Doña Trining which is known to have 100% fertility. Hybrid No. 9 which does not set fruit naturally differs from Gining Imelda which is known to produce fruits abundantly . Contrary to observations of other workers, Doña Leonila was not observed to set fruit with either natural or hand pollination.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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