Performance and economic feasibility of selected hybrid rice cultivars under direct seeding during the 2015 dry season

Date

12-2015

Degree

Bachelor of Science in Agriculture

Major Course

Major in Agronomy

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Danilo J. Lalican

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

Abstract

A field experiment was conducted during the 2015 dry season to assess the yield performance of selected rice hybrids under direct seeding and to determine the appropriateness and suitability of the different rice hybrids under the same method. The cost and return analysis was also performed for both hybrid and inbred to compare the economic feasibility of using either of the two cultivars. The entries evaluated in the study consisted of 11 entries including the two check varieties, Tubigan 18 (NSIC Rc 222, inbred) and Mestiso 19 (NSIC Rc 202H, hybrid). Results showed that yield and other agronomic characteristics such as growth duration, plant height, number of productive tillers per 15-cm, 1000-seed weight and percent filled grains were significantly different among entries. Hybrid cultivar Mestiso 25 (NSIC Rc 230H) obtained the highest grain yield and yield advantage over the inbred check Tubigan 18 followed by BCS Arize 2 and Mestiso 32 (NSIC Rc 250H). Yields of these three hybrid cultivars and the rest of the entries, however, were comparable with the hybrid check Mestiso 19. Reduced growth duration is a direct benefit of direct seeding. Both hybrid check Mestiso 19 and SL 12H were the earliest to mature at 100 days and BCS Arize 1, the latest at 116 days. On plant height, all entries were categorized as semi-dwarf since all entries had plant height lower than 110 cm. On cost and return analysis, it appears that net returns were higher for hybrid than inbred in all three farmgate prices based on separate yield obtained from each cultivar. Although not conclusive, these findings may lend support in considering Mestiso 25 and BCS Arize 2 as potential hybrid cultivars for direct seeding. As a forward-looking research, it is suggested that further studies on direct seeding for hybrids be conducted to validate such findings.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2015 A3 /L36

Document Type

Thesis

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