Yield Response in Mixtures of Two Mungbean (Vigna Radiata) Varieties as Affected by Genotype Frequency and Planting Rate

Date

4-1993

Degree

Bachelor of Science in Agriculture

Major Course

Major in Agronomy

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Eduardo A. Ramos

Abstract

Two mungbean varieties namely, Pag-asa 3 and Pag-asa 5 were studied in pure stands and two-way mixtures with 10, 25, 50, 75 and 90% of each variety at different planting rates of 10, 20, 30 and 40 seeds per linear meter, to determine the yield performance of genotype frequency and planting rate; to identify the yield components that are affected by various genotypic frequencies and plant populations, and to determine the extent of mutually favorable interaction between two interactions may be affected by populations density and/or by genotypic frequency. When average across all population densities, all mixtures yielded higher than the mean yield of Pag-asa 3 (the lower yielding genotype) in pure stand but lower than that of Pag-asa 5 (the higher yielding genotype) except the mixture having 25% Pag-asa 3 and 75% Pag-asa 5, which yielded 2.7% higher than the yield of Pag-asa 5. The best performing mixtures at lower planting rates were 50% Pag-asa 5 (at 10 seeds per linear meter). And 25% Pag-asa 3 and 75% Pag-asa 5 (at 20 seeds per linear meter). The best mixture at higher planting rates were 10% Pag-asa 3 and 90% Pag-asa 5 (at 30 seeds per linear meter), and 25% Pag-asa 3 and 75% Pag-asa 5 (at 40 seeds per linear meter). These mixtures yielded higher than the yielded of Pag-asa 5 in pure stand. The results of this study show a positive interaction for yielded between mixtures of Pag-asa 3 and Pag-asa 5.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1992 A42 M37

Document Type

Thesis

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