Competitive effects of Ipomoea triloba L. with six corn varieties
Date
3-1979
Degree
Bachelor of Science in Agriculture
Major Course
Major in Agronomy
College
College of Agriculture and Food Science (CAFS)
Adviser/Committee Chair
Beatriz L. Mercado
Co-adviser
E. C. Paller
Committee Member
R. P. Robles
Abstract
Ipomoea triloba L. at the density of 5 plants per pot delayed leaf formation and tassel emergence of corn (Zea mays L.). Plant height, fresh and dy weights and yield of six corn varieties were significantly reduced. Reduction in yield amounted to 75%, 66.15%, 52.05%,50.77%, 23.33%, and 17.07% for UPCA Var 5, UPCA Var 3, Phil. DMR Comp 2, respectively. Inter varietal differences in height and yield in both the weeded and unweeded groups were not significant, but for the fresh and dry weights significant, but for the fresh and dry weights significant differences were observed.
Of the six corn varieties studied, Phil. DMR 2 and UPCA Var 1 were the least and the most affected by the presence of weeds, respectively. Other varieties were intermediate. UPCA varieties were generally less competitive compared with the DMR varieties. The latter can tolerate 5 weeds per pot and compete with light, moisture and nutrients, particularly the Phil. DMR 2
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
Thesis
Recommended Citation
Cadag, Maria Rebecca T., "Competitive effects of Ipomoea triloba L. with six corn varieties" (1979). Undergraduate Theses. 7384.
https://www.ukdr.uplb.edu.ph/etd-undergrad/7384
Document Type
Thesis