Performance of masipag rice selections in Pila, Laguna

Date

6-2000

Degree

Bachelor of Science in Agriculture

Major Course

Major in Agronomy

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Oscar B. Zamora

Co-adviser

Ma. Lourdes Edano

Abstract

The agronomic characteristics, yield, and yield components of MASIPAG rice selections (i.e. M4-2-1, M3-2-1, Africa, BS Nagcarlan, M36-4-1 M13-1-1, M5-A-5, M8-3-1, M62-1, M45-2-1, M10-2-1) were determined and compared with that of modern varieties (i.e. IR 64, RC 64, RC 28, RC 52 and RC 18). Agronomic characters such as plant height and tillers count were taken at harvest. Yield and yield components such as percentage productive tillers, panicle length, spikelets per panicle, percentage filled spikelets, average weight of panicle, 1000 grain weight and grain to straw ratio were obtained from five randomly selected hills in each of the three one meter harvest area. Grain yield, straw yield, total crop biomass and harvest index were taken from three 100 m2 harvest are excluding all the border rows.

Plant height at harvest was highest in BS Nagcarlan. Height of other MASIPAG rice selections was highly diverse. They had low number of tillers compared to Philippine Seed Board recommended cultivars resulting in low straw yield. In terms of percentage productive tillers (PPT), there was no significant difference between MASIPAG selections and modern varieties so incorporation of organic amendments cannot significantly increase PPT. One thousand grain weight (M45-1 and RC 64 was not significantly different. Among the MASIPAG rice selections. M45-1 had the highest grain yield because of increased number of spikelets per panicle. % filled spikelets, average weight of panicles and 1000 grain weight. However, other MASIPAG selections such as M13-1-1, M13-2-1B and Africa have low grain yield. Straw yield and total crop biomass was significantly higher in modern varieties than in MASIPAG selections. Higher HI was noted in MASIPAG rice selections particularly in M5-A-5, M4-2-1, M45-1 and M62-1 because of the regulation effect of organic materials on the vegetative development and assimilate partitioning of the crop.

M45-1, M10-2-1, M8-3-1, M36-4-1, and BS Nagcarlan were the varieties highly adaptable in the area during the dry season. Thus, more MASIPAG rice selections need to be evaluated to further select desirable varieties

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2000 A42 S25

Document Type

Thesis

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