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NAHAR, N. & BARI, M.A. (Biotechnology Technical knowledge was provided to the
Laboratory, Institute of Biological Sciences,
Rajshahi University, Rajshahi); Efficient Plant
Regeneration from Cotyledon and Midrib Derived
Callus in Eggplant (Solanum Melongena L.). J.
Bio-Sci., 2006, 14, 31-38.
Somatic embryos were obtained from cotyledon
and midrib explants of Solanum melongena L.,
cultivar Loda. For callus induction, medium was
supplemented with different concentrations of
auxin singly or in combination with BAP. The best
callusing 83-85% was obtained from both of the
explants cultured on MS medium containing 2.0
1
1
mgl¯ NAA + 0.05 mgl¯ α BAP. Somatic
embryogenesis and shoot regeneration was
achieved after transferring the calli to MS medium
supplemented with BAP, GA 3, NAA and Zeatin.
Cotyledon derived calli showed better performance
(87%) for regeneration than that of midrib (82%)
when sub cultured on MS medium having 2.0 mgl-
1
1 Zeatin + 1.0 mgl¯ BAP. For root induction, MS
1
+ 3.0 mgl-¯ IBA was proved to be better treatment
for average number (14-15) and mean length (12
cm) of roots than those of other treatments.
380 RASHID, M.H.; NUR-E-ELAHI, M. &
KHAN, M.A.H. (RFS Division, Bangladesh Rice
Research Institute, Gazipur). The Participation of
Different Categories of Farmers for the Production
and Utilization of Lady's Finger (Hibiscus
esculentus L.). Bang. J. Sci. Ind. Res., 2006, 41 (1
& 2), 15-22.
A study was conducted at the Farming Systems
Research and Development (FSR&D) site of
Bangladesh Rice Research Institute (BRRI)
during kharif-I, 1999 to find the agronomic
management followed for lady's finger
cultivation by the different categories of farmers
and to understand its production, consumption
and disposal pattern together with its economy.
119
farmers for growing lady's finger. Farmers grew
the crop with their own management and
resources. Variation was found in the date of
sowing, rate of fertilizer application and number
of irrigation. The highest pod yield was
associated with better agronomic management
that resulted higher gross margin production
margin. Lady's finger production, consumption
and selling were increased from April to June
with a peak in the month of June. Lady's finger
consumption was highest per head in case of
medium farmer and was decreased from medium
farmer to marginal one. The utilization of money
earned from lady's finger selling followed a
dissimilar pattern in different categories or
farmers. Cultivation of lady's finger might be an
option for meeting the requirement of vegetable
consumption, income generation and fulfilling
the diversified demand of different category of
farmers.
381 SARKER, B.K.; ALAM, N.; AHMED,
F.A.; HOSSAIN, M.K. (Dept. of Botany,
Jahangirnagar University, Savar, Dhaka) &
BHUIYAN, M.K.R. (Tuber Crop Research
Centre, Bangladesh Agricultural Research
Institute, Gazipur). Variability, heritability and
genetic advance in morphological forms of
Colocasia esculenta var. esculenta (L.) Schott.
Bang. J. Life Sci., 2008, 20 (1), 1-5.
The genetic variability for number of stolon, length
of stolon, diameter of stolon, length of rhizome,
girth of rhizome, yield of rhizome, leaf area index
(LAI), yield of stolon per plant were estimated in
12 morphological forms of Colocasia esculenta
var. esculenta. Wide range of variability was found
in case of length of stolon, yield of stolon per plant
and yield of rhizome. The highest heritability along
with the highest genetic advance were recorded for
length of stolon followed by yield of stolon per
plant. The present findings suggests that the