Performance of selected early maturing rice varieties under different levels of nitrogen

Date

6-1986

Degree

Bachelor of Science in Agriculture

Major Course

Major in Agronomy

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Teresita H. Borromeo

Abstract

A field experiment was conducted during the wet season of 1985 at the Central Experiment Station, University of the Philippines at Loa Baños (UPLB) to evaluate the performance of five early maturing rice varieties namely: IR36, IR64, C1136-3, IR31868-64-2-3-3-3 and C1252-9 under four levels of nitrogen (30,60,90 and 120 kg/ha).

Nitrogen level and Nitrogen x variety interactions were found not significant while varietal effect was significant for all the characters studied. Grain yield was not significantly correlated neither with nitrogen rate nor with rice yield components.

Best grain yields were obtained at 90 kg N/ha rate except for C1252-9. Among the five varieties, IR64 gave the highest grain yield at all N levels but due to insignificant effect of N, no early maturing rice variety can be pinpointed to perform well at low level of N.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1986 A42 S67

Document Type

Thesis

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