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2013 (Vol. 5, Issue: 08)
Article Information:

Effects of Rainfall on Yield and Seed Quality of Three Local Upland Rice Varieties Produced Under Organic Farming System

Raumjit Nokkoul and Teerayut Wijitparp
Corresponding Author:  Raumjit Nokkoul 

Key words:  Local upland rice, organic farming, rainfall, southern of Thailand, yield and seed quality, ,
Vol. 5 , (08): 462-465
Submitted Accepted Published
May 05, 2013 June 04, 2013 August 20, 2013

The effects of rainfall on yield and seed quality of three local upland rice varieties: Lebmeunang, Kemhern and Hammuang produced under organic farming system were done at the experimental plots of the King Mongkut’s Institute of Technology Ladkrabang, Chumphon Campus, Thailand during July to November, 2010. The study was conducted in randomized complete block design with four replications. The results showed that at the vegetative, reproductive and seed formation to ripening stage the 3 tested varieties got the rainfall of 59.20, 57.40 and 97.10 mm with 10, 7 and 12 days raining, respectively. All varieties had lower seed yield than when grown at the low level rainfall. Three varieties produced empty seeds per panicle of 36.00, 35.00 and 37.00% with seed yield of 46.88, 46.08 and 23.52 kg/ha, respectively. Incidentally, the seeds had high quality. All varieties had seed germination of 92.00, 89.00 and 88.00% and soil emergence of 90.00, 91.00 and 86.00%, respectively. Speed of germination index of 7.25, 7.13 and 12.07 and seedling dry weight of 68.25, 75.11 and 49.57 mg/seedling, respectively.
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  Cite this Reference:
Raumjit Nokkoul and Teerayut Wijitparp, 2013. Effects of Rainfall on Yield and Seed Quality of Three Local Upland Rice Varieties Produced Under Organic Farming System.  Research Journal of Environmental and Earth Sciences, 5(08): 462-465.
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ISSN (Online):  2041-0492
ISSN (Print):   2041-0484
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