Author (S): M. S. Islam*,
M. M. Rashid, M. A. Kabir, M. R. Karim, and
J. Timsina
*Corresponding author, E-mail:sirajul.i@brac.net
Abstract
Performance of two
new exotic hybrid rice genotypes from India BIO-404 and BIO-452
including two popular BRAC hybrid (Alloran and Sathi) and one inbred (BRRI
dhan28) were evaluated at BRAC Agricultural Research and Development Centre of
Gazipur and ALSO in the farmer’s field of Rajshahi district during dry season
(boro) of 2011. Both the exotic BIO genotypes showed a better cold tolerance at
the seedling stage. The initial growth of BIO-404 and BIO-452 were better
compared to other tested genotypes. But at the later stage they showed a higher
plant height and lower panicle number resulting in lower grain yield than the
check hybrids. The spikelet fertility of the two exotic hybrid rice genotypes
was also low. Hybrid Alloran produced the highest grain yield in both the
locations which was attributed to higher
spikelet fertility and higher individual grain weight.
Key words: Hybrid rice, Grain yield, and Spikelet fertility
J. Expt. Biosci.
4(2):11-14, July 2013 ISSN 2223-9626 (Online), ISSN 2077-3358
(Print)
Full article: PDF
