Evaluation of Yield and Yield Attributes in Various Rice Genotypes under Different Nitrogen Levels

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K. Sivasabari
S. Jothimani


The experiment was conducted during 2017, Pishanam season at Rice Research Station, Ambasamudram with the objective to screen the efficient and responsive rice genotypes based on nitrogen use efficiency and yield and yield attributes of different genotypes by N levels with 32 rice genotypes as main plot treatments and four nitrogen levels N0 (control), N1 (50% recommended dose of N ha-1), N2 (100% recommended dose of N ha-1) and N3 (150% recommended dose of N ha-1) as subplot treatments. The experimental results showed that, the highest grain and straw yields were recorded at N3 (180 kg ha-1) by the most of the rice genotypes, except the AS 12051, ACK 14004, CB08702, CB 13539 and PM 12009 which were not responded genotypes for higher dose of (180 kg ha-1) nitrogen. In the genotypes ASD 16, ADT 43, ADT 45, CO 51, MDU 5, CB 14508, CB 14533, TR 0927, TR 13069 and TM 12061 the AE was increasing with increasing level of nitrogen, other genotypes showed decreasing trend with increasing level of nitrogen levels. The genotypes viz., ASD16, ADT39, ADT45, TPS 5, AD09206, CB06803, ACK14001, TM10085, TM12007, PM12009 and EC725224 are under Efficient and responsive (ER) category which gives average yield at low level and high N use efficiency. The plant height, productive tillers, total grains, harvest index, panicle length and 1000 grain weights given verified results among the genotypes due to genetic characters. Among the N levels the plant height, panicle length, productive tillers per hill and total grains showed highest in 180 kg N ha-1. 1000 grain weight increased at low level of 50% of RDN (21.0) and decreased to 20.8 in N2 and N3 treatments which indicated higher doses of N. N harvest index were decreased with increasing level of N application from 0.70 (N0), 0.65(N1), 0.64 (N2) and 0.63 (N3).

Nitrogen, rice genotypes, N harvest index, yield attributes, N use efficiency

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How to Cite
Sivasabari, K., & Jothimani, S. (2019). Evaluation of Yield and Yield Attributes in Various Rice Genotypes under Different Nitrogen Levels. Journal of Applied Life Sciences International, 20(4), 1-11. https://doi.org/10.9734/jalsi/2019/v20i430088
Original Research Article


FAO, Food and Agriculture Organization of the United Nations, Rome, Italy; 2004.

Noor MA. Nitrogen management and regulation for optimum NUE in maize–A mini review. Soil and Crop Science; 2007.

Hodge A, Robinson D, Fitter AH. Are microorganisms more effective than plants at competing for nitrogen? Trends in Plant Science. 2000;5:304-308.

EL-Batal MA, Abd EL-Gawad MH, Abdo FA, EL-Set A, EL-Aziz A. Uniconazole application as anti-lodging for rice plants fertilized with high nitrogen rate. Journal of Agricultural Research. 2004;31:473-490.

Yoseftabar S. Effect of nitrogen and phosphorus fertilizer on spikelet structure and yield in rice (Oryza sativa L). International Journal of Agriculture and Crop Sciences. 2013;5(11):1204-1208.


Fageria NK, Baligar VC, Jones CA. Growth and mineral nutrition of field crops, 2nd ed. New York: Marcel Dekker; 1997.

Gomez KA, Gomez AA. Statistical procedures for agricultural research, 2nd edn. John Wiley and Sons, New York; 1984.

Kumar M, Singh RP, Rana NS. Effect of organic inorganic sources of nutrition on productivity of rice (Oryza sativa). Indian Journal of Agronomy. 2003;48:175-177.

Thenmozhi P, Rajasekaran C. Genetic diversity and relationship among 40 rice accessions from North-Eastern Zone of Tamil Nadu using morphological and SSR markers. Research Journal of Biotechno-logy. 2013;8(9):32-41.

Hossain MB, Islam MO, Hasanuzzaman M. Influence of different nitrogen levels on the performance of four aromatic rice varieties. International Journal of Agriculture & Biology. 2008;10:693-696.

Fageria NK, Baligar VC. Fertility management of tropical acid soils for sustainable crop production. In: Handbook of Soil Acidity, ed. Z. Rengel, New York: Marcel Dekker. 2003a;359–385.

Fageria NK, Baligar VC. Enhancing nitrogen use efficiency in crop plants. Advances in Agronomy. 2005;88:97–185.

Mannan MA, Bhuiya MSU, Hossain HMA, Akanda MIM. Optimization of nitrogen rate for aromatic bas- mati rice (Oryza sativa L.). Bangladesh Journal of Agricultural Research. 2010;35:157-165.

Mallareddy M, Padmaja B. Response of rice (Oryza sativa) varieties to nitrogen under aerobic and flooded conditions. Indian Journal of Agronomy. 2013;58(4): 500-505.

Haque MA, Khaliq QA, Karim A, Ahmed JU, Rahman MH. Nitrogen fertilizer effect on dry matter production and grain growth of aromatic rice. Journal Subtropical Agricultural Research and Development. 2004;2:15-19.

Dahi, Singh. Effect of different N levels on rice growth parameters. IJCS. 2018;3:35-40.

Bhuiya MSU, Hossain SMA, Kabir SKG. Nitrogen fertilization in rice cv. BR10 after green manuring. Bangladesh Journal of Agricultural Sciences. 1998;16(1):87-92.

Yoshida S. Fundamentals of rice crop science. Los Baños, Philippines, IRRI. 1981;269.

Fageria NK, Baligar VC. Fertility management of tropical acid soils for sustainable crop production. In: Handbook of soil acidity, ed. Z. Rengel, New York: Marcel Dekker. 2003;359–385.