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Effect of variety, spacing and number of seedlings per hill on the yield potentials of transplant aman rice

Abstract An experiment was carried out at Agronomy Field Laboratory, Department of Agronomy and Agricultural Extension, University of Rajshahi during the kharif season to study the effect of variety, spacing and number of seedlings hill-1 on the yield potentials of transplant aman rice. The experiment consisted of three high yielding varieties viz. BRRI dhan32, BRRI dhan33 and BR11, four levels of spacing viz. 10cm25cm, 15cm25cm, 20cm25cm and 25cm25cm and four levels of number of seedlings hill-1 viz. 2 seedlings hill-1, 3 seedlings hill-1, 4 seedlings hill-1 and 5 seedlings hill-1. A split-split plot design was used with three replications assigning the variety on the main plot, spacing to the sub-plots and number of seedlings hill-1 to the sub-sub plots. Variety had significant effects on almost all the yield component characters and yield. All the yield components characters except number of fertile spikelets panicle-1 were highest in case of variety BR11 and hence it produced the highest grain yield (5.92 tha-1). Spacing had a significant influenced on the yield components and yield of rice. All the yield contributing characters were highest at 15cm×25cm spacing and thus it produced the highest grain yield (5.93 t ha-1). Effect of the number of seedlings hill-1 was also significant on almost all the yield enhancing characters. The highest plant height, panicle length, fertile spikelets panicle-1 and 1000-grain weight were found when 2 seedlings were transplanted hill-1 and consequently it produced the highest grain yield (5.78 t ha-1)..

Abstract
An experiment was carried out at Agronomy Field Laboratory, Department of Agronomy and Agricultural Extension, University of Rajshahi during the kharif season to study the effect of variety, spacing and number of seedlings hill-1 on the yield potentials of transplant aman rice. The experiment consisted of three high yielding varieties viz. BRRI dhan32, BRRI dhan33 and BR11, four levels of spacing viz. 10cm25cm, 15cm25cm, 20cm25cm and 25cm25cm and four levels of number of seedlings hill-1 viz. 2 seedlings hill-1, 3 seedlings hill-1, 4 seedlings hill-1 and 5 seedlings hill-1. A split-split plot design was used with three replications assigning the variety on the main plot, spacing to the sub-plots and number of seedlings hill-1 to the sub-sub plots. Variety had significant effects on almost all the yield component characters and yield. All the yield components characters except number of fertile spikelets panicle-1 were highest in case of variety BR11 and hence it produced the highest grain yield (5.92 tha-1). Spacing had a significant influenced on the yield components and yield of rice. All the yield contributing characters were highest at 15cm×25cm spacing and thus it produced the highest grain yield (5.93 t ha-1). Effect of the number of seedlings hill-1 was also significant on almost all the yield enhancing characters. The highest plant height, panicle length, fertile spikelets panicle-1 and 1000-grain weight were found when 2 seedlings were transplanted hill-1 and consequently it produced the highest grain yield (5.78 t ha-1)..

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Int. J. Agr. & Agri. R.<br />

<strong>the</strong> lowest was produced by 5 <str<strong>on</strong>g>seedlings</str<strong>on</strong>g> <str<strong>on</strong>g>hill</str<strong>on</strong>g> –1 (5.26 t ha -1 )<br />

(Table 3). Two <str<strong>on</strong>g>seedlings</str<strong>on</strong>g> <str<strong>on</strong>g>hill</str<strong>on</strong>g> –1 was <strong>the</strong> best treatment<br />

to get <strong>the</strong> highest <strong>yield</strong> <str<strong>on</strong>g>per</str<strong>on</strong>g> unit area; it might be due<br />

to <strong>the</strong> highest panicle length, <str<strong>on</strong>g>number</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g> fertile<br />

spikelets panicle –1 <str<strong>on</strong>g>and</str<strong>on</strong>g> 1000-grain <strong>yield</strong> <str<strong>on</strong>g>and</str<strong>on</strong>g> lowest<br />

<str<strong>on</strong>g>number</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g> sterile spikelets panicle -1 . Similar results<br />

were also obtained by Hossain <str<strong>on</strong>g>and</str<strong>on</strong>g> Haque (1990)<br />

<str<strong>on</strong>g>and</str<strong>on</strong>g> Islam et al. (2002).<br />

In fine, it can be suggested that farmers may<br />

<strong>transplant</strong> BR11 <strong>rice</strong> <str<strong>on</strong>g>variety</str<strong>on</strong>g> maintaining a <str<strong>on</strong>g>spacing</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g><br />

15cm×25cm with 2 <str<strong>on</strong>g>seedlings</str<strong>on</strong>g> <str<strong>on</strong>g>hill</str<strong>on</strong>g> -1 to achieve higher<br />

<strong>yield</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> <strong>transplant</strong> <strong>aman</strong> <strong>rice</strong>.<br />

Haque DE. 2002. <str<strong>on</strong>g>Effect</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g> Madagascar technique<br />

<str<strong>on</strong>g>of</str<strong>on</strong>g> younger seedling <str<strong>on</strong>g>and</str<strong>on</strong>g> wider <str<strong>on</strong>g>spacing</str<strong>on</strong>g> <strong>on</strong> growth <str<strong>on</strong>g>and</str<strong>on</strong>g><br />

<strong>yield</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> boro <strong>rice</strong>. M.S. Thesis, Bangladesh<br />

Agricultural University, Mymensingh,28-71.<br />

Hossain MM. <str<strong>on</strong>g>and</str<strong>on</strong>g> Haque MZ. 1990. Seedling age<br />

<str<strong>on</strong>g>and</str<strong>on</strong>g> density effect <strong>on</strong> basal tiller survial <str<strong>on</strong>g>and</str<strong>on</strong>g> <strong>yield</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g><br />

<strong>transplant</strong> <strong>aman</strong> <strong>rice</strong>. Bangladesh J. Agril. Sci 12<br />

(2), 67-72.<br />

IRRI (Internati<strong>on</strong>al Rice Research Institute). 1967. Rice<br />

Producti<strong>on</strong> Manual. UPBL, Los Banos, Laguna,<br />

Philippines,95.<br />

References<br />

AIS (Agricultural Informati<strong>on</strong> Service). 2007. Krishi<br />

Diary. Agril. Inf. Ser. Khamerbari, Farmgate,<br />

Dhaka,2-23.<br />

Islam MA. 2003. <str<strong>on</strong>g>Effect</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>spacing</str<strong>on</strong>g> <str<strong>on</strong>g>and</str<strong>on</strong>g> <str<strong>on</strong>g>number</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g><br />

<str<strong>on</strong>g>seedlings</str<strong>on</strong>g> <str<strong>on</strong>g>hill</str<strong>on</strong>g> -1 <strong>on</strong> <strong>the</strong> growth <str<strong>on</strong>g>and</str<strong>on</strong>g> <strong>yield</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> <strong>transplant</strong><br />

<strong>aman</strong> <strong>rice</strong> cv. BRRI dhan32. M.S. Thesis, Bangladesh<br />

Agricultural University, Mymensingh,98.<br />

Azad AKM. 2004. <str<strong>on</strong>g>Effect</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>spacing</str<strong>on</strong>g> <str<strong>on</strong>g>and</str<strong>on</strong>g> <str<strong>on</strong>g>number</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g><br />

<str<strong>on</strong>g>seedlings</str<strong>on</strong>g> <str<strong>on</strong>g>hill</str<strong>on</strong>g> -1 <strong>on</strong> <strong>yield</strong> <str<strong>on</strong>g>and</str<strong>on</strong>g> <strong>yield</strong> c<strong>on</strong>tributing<br />

attributes <str<strong>on</strong>g>of</str<strong>on</strong>g> <strong>transplant</strong> <strong>aman</strong> <strong>rice</strong> cv. BR11. M.S.<br />

Thesis, Bangladesh Agricultural University,<br />

Mymensingh, 75-170.<br />

Islam MM. 2002. Enhancement <str<strong>on</strong>g>of</str<strong>on</strong>g> growth <str<strong>on</strong>g>and</str<strong>on</strong>g><br />

<strong>yield</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> Boro <strong>rice</strong> through modificati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> SRI<br />

technique in terms <str<strong>on</strong>g>of</str<strong>on</strong>g> fertilizer management, <str<strong>on</strong>g>spacing</str<strong>on</strong>g><br />

<str<strong>on</strong>g>and</str<strong>on</strong>g> seedling age. M.S. Thesis, Bangladesh<br />

Agricultural University, Mymensingh, 43-117.<br />

Bisne R, Motir<strong>aman</strong>i, NK <str<strong>on</strong>g>and</str<strong>on</strong>g> Sarawgi AK.<br />

2006. Identificati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> high <strong>yield</strong>ing hybrids in <strong>rice</strong>.<br />

Bangladesh J. Agril. Res 31(1),171-174.<br />

BRRI (Bangladesh Rice Research Institute).1995.<br />

Adunik Dhaner Chash. Bangladesh Rice Res. Inst.,<br />

Joydebpur, Gazipur, Bangladesh,34.<br />

Chowdhury MJU, Sarkar AU, Sarkar MAR<br />

<str<strong>on</strong>g>and</str<strong>on</strong>g> Kashem MA. 1993. <str<strong>on</strong>g>Effect</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>variety</str<strong>on</strong>g> <str<strong>on</strong>g>and</str<strong>on</strong>g><br />

<str<strong>on</strong>g>number</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>seedlings</str<strong>on</strong>g> <str<strong>on</strong>g>hill</str<strong>on</strong>g> -1 <strong>on</strong> <strong>the</strong> <strong>yield</strong> <str<strong>on</strong>g>and</str<strong>on</strong>g> its<br />

comp<strong>on</strong>ents <strong>on</strong> late <strong>transplant</strong>ed <strong>aman</strong> <strong>rice</strong>.<br />

Bangladesh J. Agril. Sci 20 (2), 311-316.<br />

Miah MHN, Karim MA. Rahman MS. <str<strong>on</strong>g>and</str<strong>on</strong>g><br />

Islam MS. 1990. Performance <str<strong>on</strong>g>of</str<strong>on</strong>g> Nitrogen nutrients<br />

under different row <str<strong>on</strong>g>spacing</str<strong>on</strong>g>. Bangladesh J. Train.<br />

Dev 3(2), 31-34.<br />

Rekhasshari K, Borthakur MP, Sarma BN<br />

<str<strong>on</strong>g>and</str<strong>on</strong>g> Kalita R. 1997. <str<strong>on</strong>g>Effect</str<strong>on</strong>g> <str<strong>on</strong>g>of</str<strong>on</strong>g> Planting geometry <str<strong>on</strong>g>and</str<strong>on</strong>g><br />

level <str<strong>on</strong>g>of</str<strong>on</strong>g> fertilizer <strong>on</strong> <strong>yield</strong> parameters, <strong>yield</strong> <str<strong>on</strong>g>and</str<strong>on</strong>g><br />

uptake <str<strong>on</strong>g>of</str<strong>on</strong>g> <strong>the</strong> planted Saline <strong>rice</strong>. J. Agril. Sci. Soc.<br />

North East India,10 (2), 256-258.<br />

Steel RGD <str<strong>on</strong>g>and</str<strong>on</strong>g> Toric JH. 1960. Principles <str<strong>on</strong>g>and</str<strong>on</strong>g><br />

Proceedings <str<strong>on</strong>g>of</str<strong>on</strong>g> Statistics. McGraw Hill Book,<br />

Newyork, U.S.A, 107-109.<br />

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