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Rice is the most important human food crop in the world. In Bangladesh rice is cultivated throughout the year as Aus, Aman and Boro. Among them boro rice is generally cultivated in November to March. More than half of the total production (55.5%) is obtained in this season. Generally, farmers use more than the recommended number of seedlings during transplanting. The number of seedlings plays a vital role in the growth, development and yield of rice. The aim of this experiment was to determine the number of seedling(s) during transplanting for boro rice varieties for higher growth and yield. This investigation was carried out at the research field of BINA sub-station under Khagrachari sadar upazila in Bangladesh during December 2017 to May 2018. The experiment tested three seedling numbers; S1 (Single), S2 (double), S3 (triple) and four varieties V1 (BRRI dhan-28), V2 (Binadhan-14), V3 (Heera-1), V4 (Shakti-2) in a factorial RCB design with three replications. Results revealed that significantly highest plant height was obtained with treatment S1´V3 (110.30 cm) and S3´V4 (109.4 cm) while the maximum number of tillers/hill from S3´V1 (16.93) and S2´V1 (16.07). In terms of production, treatment combination S3´V4 gave the highest grain (10.40 t/ha), straw (10.40 t/ha) and biological yield (10.40 t/ha). Harvest index was the highest in treatment S1´V4 (59.48). From the above findings it was observed that single seedling performed better than two and three seedlings per hill in terms of getting optimum yield of boro rice varieties. Hence, the rice growing farmers should avoid the use of extra seedlings during transplanting to save labor, time and money.
Haque MM, Majumder RR, Hore TK, Biswash MR. Yield contributing characters effect of submerged water levels of boro rice (Oryza sativa L.). Scientia Agriculturae. 2015;9(1):23-29.
AIS (Agricultural Information Service). Krishi Dairy, Agril. Inform. Ser. Kamarbari, Farmgate. Dhaka, Bangladesh. 2011;23.
Bhowmik SK, Sarkar MAR, Zaman F. Effect of spacing and number of seedlings per hill on the performance of Aus rice cv. NERICA 1 under dry direct seeded rice (DDSR) system of cultivation. J. Bangladesh Agril. Univ. 2012;10(2):191–195.
Chowhan S, Haider MR, Hasan AFMF, Hoque MI, Kamruzzaman M, Gupta R. Comparative on farm performance of five modern rice varieties with two local cultivars. Journal of Bioscience and Agriculture Research. 2017;13(01):1074-1086.
DAE (Department of Agricultural Extension). Annual Report of Additional Director Office, Banarupa, Rangamati, Bangladesh. 2018;6-8.
FRG (Fertilizer Recommendation Guide). Bangladesh Agricultural Research Council (BARC), ISBN: 978-984-500-000-0, Farmgate, Dhaka-1215. 2012;84,264.
Gomez KA, Gomez AA. Statistical producers for agricultural research. A Wiley Int. Sci. Pub. John Wiley and Sons, New York, Brisbane, Singapore. 1984;139-240.
Islam T, Salam M. Effect of number of seedlings hill-1 on the yield and yield contributing characters of short duration Aman rice cultivars. Progressive Agriculture. 2018;28(4):279-286.
Roy SK, Ali MY, Jahan MS, Saha UK, Ahmad-Hamdani MS, Hasan MM, Alam MA. Evaluation of growth and yield attributing characteristics of indigenous Boro rice varieties. Life Science Journal. 2014;11(4):122-126.
Chowhan S, Gupta R, Islam MM, Begum SN. Evaluation of NERICA rice mutant in Jhum cultivation. International Journal of Agronomy and Agricultural Research. 2018;12(2):24-31.
Murshida S, Uddin M, Anwar M, Sarker U, Islam M, Haque M. Effect of variety and water management on the growth and yield of Boro rice. Progressive Agriculture. 2017;28(1):26-35.
Dejen T. effect of plant spacing and number of seedlings per hill to transplanted rice (Oryza sativa X Oryza glaberrima) under irrigation in middle Awash, Ethiopia. Journal of Applied Life Sciences International. 2018;17(4):1-9.
BINA (Bangladesh Institute of Nuclear Agriculture). Annual Report for 2012-2013. Bangladesh Inst. Nucl. Agr., BAU Campus, Mymensingh-2202. 2015;229-230.
Dey R, Biswas MN, Hossain Miah M, Mandal P. Agronomic performances of rice varieties at different transplanting ages. International Journal of Plant & Soil Science. 2018;6(3):124-139.
Masum SM, Ali MH, Hasanuzzaman M, Chowdhury IF, Mandal MSH, Jerin R. Response of variety and population density on yield attributes and yield of boro rice (Oryza sativa). Ann. Agric. Res. New Series. 2014;35(4):355-361.
Shrirame MD, Rajgire HJ, Rajgire AH. Effect of spacing and seedlings number per hill on growth attributes and yield of rice under lowland condition. Indian J. Soils Crops. 2000;10(1):109-113.
Xue X, Xing Y, Weng X, Zhao Y, Tang W, Wang L, Zhou H, Yu S, Xu C, Li X, Zhang Q. Natural variation in Ghd7 is an important regulator of heading date and yield potential in rice. Nature Genetics. 2008;40:761-767.
Ranawake AL, Amarasinghe UGS, Hewage MJ, Pradeepika NGJ. Effect of days to flowering on plant height and yield of rice (Oryza sativa L.). International Journal of Plant & Soil Science. 2014; 3(9):1143-1152.
Reza S, Tani N, Salim M, Hasan A, Akter MA. Yield and grain dimensions of T. Aman rice varieties as influenced by date of transplanting. Asian Journal of Medical and Biological Research. 2016;2(3):442-450.
Halder J, Rokon G, Islam M, Salahin N, Alam M. Effect of planting density on yield and yield attributes of local aromatic rice varieties. Bangladesh Journal of Agricultural Research. 2018;43(3):489-497.
Hasanuzzaman M, Rahman ML, Roy TS, Ahmed JU, Zobaer ASM. Plant characters, yield component and yield of late transplanted aman rice as affected by plant spacing and number of seedlings hill-1. Adv. Bio. Res. 2009;3(5-6):201- 207.
Murthy KNK, Shankaranarayana V, Murali K, Jayakumar BV. Effect of different dates of planting on spikelet sterility in rice genotypes (Oryza sativa L.). Res. Crops. 2004;5(2/3):143-147.
BRKB (Bangladesh Rice Knowledge Bank). Problems and solution of rice production. 2019;23.
[Accessed 03 September 2019]
Chaudhury JK, Thakuria RK, Das GR. Effect of hill density, seedlings per hill and potassium on late transplanted sali (rainfed low land winter) rice yield in Assam, India. IRRN. 1995;20(4):18.
Miri K. Yield and yield attributes of rice cultivars as influenced by transplanting dates in Sarbaz region. Intl. J. Agric. Crop Sci. 2011;3(3):72-75.
BRRI (Bangladesh Rice Research Institute). Annual Internal Review, held on 19-23 October. Grain Quality and Nutrition Division. Bangladesh Rice Res. Inst. Gazipur. 2003;2-6.
Biswas P, Barman H, Ghosal S, Tohiduzzaan S, Ali M. Stability study for growth duration and grain yield of exotic hybrid rice genotypes in Bangladesh. Bangladesh Journal of Agricultural Research. 2011;36(1):97-102.
Sarkar SC, Akter M, Islam MR, Haque MM. Performance of five selected hybrid rice varieties in aman season. Journal of Plant Sciences. 2016;4(4):72-79.
BINA (Bangladesh Institute of Nuclear Agriculture). Binadhan-14; 2019.
[Accessed 20 August 2019]
Mondal MMA, Islam AFMS, Siddique MA. Performance of 17 modern transplant aman cultivar in the north region of Bangladesh. Bangladesh J. Crop. Sci. 2005;16:23-29.
Pruneddu G, Spanu A. Varietal comparison of rice in Sardinia. Dipartimentodi Science Agroomiche Genetica Vegetable Agraria, Universitadegli, Italy Informatore-Agraria. 2011;57(5):47-49. Italian
Mannan M, Bhuiya M, Akhand M, Rana M. Influence of date of planting on the growth and yield of locally popular traditional aromatic rice varieties in boro season. Journal of Science Foundation. 2013; 10(1):20-28.
Hasan AK, Islam SS, Karim MR, Islam MA, Rahman MA. Influence of variety and sowing dates on the yield and yield attributes of boro season rice in aerobic condition. Asian Journal of Science and Technology. 2018;09(2):7570-7575.
Chowdhary MJU, Sarkar AU, Sarkar MAR, Kashem MA. Effect of variety and number of seedling on the yield and its components on late transplanted Aman rice. Bangladesh J. Agri. Sic. 1999;20(2): 311-316.
Chandra K, Das AK. Correlation and intercorrelation of physiological parameters in rice under rainfed transplanted condition. Crop Res. Hisar Assam Agril. Univ. 2007;19(2):251-254.
Cui J, Kusutani A, Toyota M, Asanuma K. Studies on the varietal difference of harvest index in rice: Relationship between harvest index and morphological characteristics and leaf color. Japanese Journal of Crop Science. 2000;69(3):359-364.