Determinatinon of Rice (Oryza sativa L.) Genotypes Suitable for Drip Irrigation

N. BESER1, H. SUREK2, S. SAHIN2, R. KAYA2, B. TUNA2 and R. CAKIR3
1 Trakya University, Engineering Faculty, Department of Genetic and Bioengineering Edirne, Turkey
2 Trakya Agricultural Research Institute, 22100 Edirne, Turkey
3 Canakkale Onsekiz Mart University, Lapseki Vocational Scholl, Lapseki Canakkale, Turkey

Abstract

BESER, N., H. SUREK, S. SAHIN, R. KAYA, B. TUNA and R. CAKIR. Determinatinon of rice (Oryza sativa L.) genotypes suitable for drip irrigation. Bulg. J. Agric. Sci., 21: 1222–1228

This study was carried out at Trakya Agricultural Research Institute during 2007 and 2009 to find out suitable rice genotypes for drip irrigation. Irrigation drip laterals with an emitter discharge rate of 2 L h–1 and emitter spacing of 0.30 m were used each plot. Distances between laterals was 80 cm. As a two years mean 789 mm water was given with drip irrigation (including seasonal rainfall). According to two year means, Akceltik had the lowest days to flowering and days to maturity with 85 and 116 days respectively, Aromatik-1 had the highest days to flowering with 102 days and YRF-203 had the highest days to maturity with 133 days respectively. Akceltik had the highest plant height with 98.1 cm and Kiziltan had the lowest plant height with 65.8 cm. YRF-203 had the longest panicle with 20.08 cm. Cultivar Edirne had the highest brown rice yield with 81.45% and Cultivar Gonen had the highest total rice yield with 70.76%. On the other hand Veneria had the highest head rice yield with 61.88% .The number of fertile panicle per square meter was the highest at cultivar Aromatik-1 (264/ m2). Genotype YRF-203 attained highest percentage of sterile spikelet (37.55%) while Akceltik produced lowest percentage of sterile spikelet (8.83%). Maximum 1000 kernel weight was obtained from cultivar Negis. The genotype Veneria gained the highest biological yield (1.568 t/ha). Percentage of harvest index was the highest in genotype Kiziltan (47.5%) while it was lowest in genotype YRF-203 (21.3%). The highest yield (6.517 t/ha) was obtained with Duragan rice variety, it followed by Osmancik-97, Halilbey and Kiziltan with 6.238, 6.231 and 5.980 t/ha yield respectively. From this study, it was found that that Duragan, Osmancik-97 and Halilbey rice cultivars are adaptable for drip irrigation and these varieties could be grown under drip irrigation conditions with using about 50% less water than the flooded irrigation conditions.

Key words: drip irrigation, milling yield, morphological characteristics, rice (Oryza sativa L), yield, yield components

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