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Research Article
 

Ratooning Ability of Photoperiod-Sensitive Rice Varieties Transplanted in the Boro Season



B.C. Roy , M.A. Hossain and M.A. Rahman
 
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ABSTRACT

Field experiment was conducted at the Bangladesh Rice Research Institute, Charbadna farm, Barisal, from boro 2001 to aman 2002. Seven photoperiod-sensitive rice varieties including three fine grain aromatic varieties were transplanted in December 15 and December 30, 2001. After harvest of boro crop the ratoons, came out from the remaining straw and base of the hills, were allowed to grow and in the succeeding aman a good harvest was obtained from those ratoons. In the boro season, the highest yield was obtained from BRRI dhan41 followed by BR23 (7.51 and 7.06 t ha-1, respectively). The yield of aromatic varieties was about 5 t ha-1. The ratoon-yields of both aromatic and non-aromatic varieties in the succeeding aman season were also encouraging and produced about 2 t ha-1, which was more than the average yield of local varieties normally cultivated in the transplanted aman season in that region. The highest yield was obtained from BR23 (2.87 t ha-1) followed by BRRI dhan37 (2.63 t ha-1). From this experiment, it was revealed that the photoperiod-sensitive rice varieties could be planted in the early boro season and the ratoons from this crop also produced a good harvest, might be a low-cost rice cultivation technique in those areas, where crop establishment in the transplanted aman season is somewhat difficult due to early intrusion of tidal water in the field at the end of boro season.

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  How to cite this article:

B.C. Roy , M.A. Hossain and M.A. Rahman , 2004. Ratooning Ability of Photoperiod-Sensitive Rice Varieties Transplanted in the Boro Season. Pakistan Journal of Biological Sciences, 7: 368-371.

DOI: 10.3923/pjbs.2004.368.371

URL: https://scialert.net/abstract/?doi=pjbs.2004.368.371

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