
	Asian Journal of Plant Sciences
	Year: 2010 \| Volume: 9 \| Issue: 1 \| Page No.: 36-43 DOI: 10.3923/ajps.2010.36.43

Growth and Yield of Rice (Oryza sativa L.) as affected by Cultivars, Seeding Depth and Water Deficits at Vegetative Stage

S. Sanusan, A. Polthanee, A. Audebert, S. Seripong and J.C. Mouret

Abstract: This study investigates the effects of different seeding depths and water stress on growth and yield of direct-seeded rice. The experiment was a 3x2x2 factorial in a randomized complete block design with four replications. The main factors (03) were seeding depths (0, 1 and 5 cm), water level (well watered and water stress at 30 days after seeding (DAS) and rice cultivars (Pathum Thani 1 and Suphan Buri 1). Above-ground biomass and root length density were significantly affected by rice cultivars, seeding depths and water stress. The Suphan Buri 1 had a higher above ground biomass and root length density than the Pathum Thani 1. At the first 7 days of water stress, maximum above-ground biomass was obtained at 1 cm seeding depth. But at a later stage, the highest above ground biomass was observed with a seeding depth of 5 cm at both 60 and 90 days after seeding. The greatest root length density was obtained at a seeding depth of 5 cm. Grain yield was significantly affected by seeding depths and water stress. The highest grain yield was obtained in 5 cm seeding depths compared with other low depth under water stress at vegetative stage (30 DAS). It was concluded that yield loss under water stress at vegetative stage may be compensated for by increasing seeding depth above shallow depth levels.

PDF Fulltext XML References Citation Report Citation

RELATED ARTICLES:

•	Effect of Seeding Depth and Weed Management Options on Weed Control and Yield Performance of Dry Direct Seeded Rice

•	Epiphytic Plants Responses to Light and Water Stress

•	System of Rice Intensification Principles on Growth Parameters, Yield Attributes and Yields of Rice (Oryza sativa L.)

How to cite this article:

S. Sanusan, A. Polthanee, A. Audebert, S. Seripong and J.C. Mouret, 2010. Growth and Yield of Rice (Oryza sativa L.) as affected by Cultivars, Seeding Depth and Water Deficits at Vegetative Stage. Asian Journal of Plant Sciences, 9: 36-43.

DOI: 10.3923/ajps.2010.36.43

URL: https://scialert.net/abstract/?doi=ajps.2010.36.43

COMMENT ON THIS PAPER

Navigation


		Online First
		Current Issue
		Previous Issues
		Editorial Board
		Submit a Manuscript
		Guide to Authors
		Subscribe to E-alerts

Indexed In


		AGRIS
		ASCI-Database
		Asian Digital Library
		Cambridge Scientific Abstract
		Chemical Abstract Services
		ISI Web of Knowledge
		SCIMAGO
		Thomson ISI

Science Alert