Optimum Sample Size for Weed Density and Biomass Determination in Mungbean (Vigna Radiata (L.) Wilczek) Weed Control Treatments
Date
10-1983
Degree
Bachelor of Science in Agriculture
Major Course
Major in Agronomy
College
College of Agriculture and Food Science (CAFS)
Adviser/Committee Chair
Enrique C. Paller Jr.
Abstract
An experiment was conducted to: (a) compare the coefficients of variation for different sample sizes to obtaining weed density and biomass at two sampling times, (b) determine the optimum sample size for weed density and biomass determination in mungbean weed control treatments, (c) assess the effects of 3 weed control treatments on the grain yield of mungbean. The experiment was done at the Central Experiment Station, University of the Philippine at Los Baños, College, Laguna from June to September 1983.
The coefficient of variation of weed density and biomass varied weed control treatments, sampling times, and sample sizes.
Higher coefficient of variation in weed density and biomass was noted in the unweeded plots than those that were hand weeded at 15 days after emergence (DAE).
Sampling at harvest resulted in significantly lower coefficient of variation in weed density and biomass than sampling at 45 DAE.
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
LG 993.5 1983 A42 M37
Recommended Citation
Masangkay, Rhomela F., "Optimum Sample Size for Weed Density and Biomass Determination in Mungbean (Vigna Radiata (L.) Wilczek) Weed Control Treatments" (1983). Undergraduate Theses. 9433.
https://www.ukdr.uplb.edu.ph/etd-undergrad/9433
Document Type
Thesis