Performance of Medium- Maturing Rice Cultivars Under Different Levels of Nitrogen Fertilization

Date

10-1986

Degree

Bachelor of Science in Agriculture

Major Course

Major in Agronomy

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Edwin L. Javier

Abstract

The performance of ten maturing rice varieties under three levels of nitrogen fertilization (0,30 and 90 kg N per ha) was evaluated during the dry season of 1986 at the Central Experiment Station, University of the Philippines at Los Baños, (UPLB)

Highly significant differences among nitrogen level were observed for grain yield. number of panicles per hill, days to maturity final plant height and total tiller number at harvest while significant differences among varieties were noted for all characters. Nitrogen level x variety interaction was significant in number of panicles per hill. number of filled grains/panicle and 100 grain weight.

The growth duration of varieties varied from 115 to 128 days. Varietal height ranged from 75.50 to 93.27 cms while the mean tiller number ranged from 14.9 to 21.2 tillers per hill. The highest grain yield obtained was 4567 kgs per ha while the lowest was 2771 kg per ha. Among the ten entries evaluated, MRC 11055-430, IR 25587-133-3-2-2-2 and MRC 7849-584 yielded more than 4000 kg per ha.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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