Abstract:
The experiment was conducted at the Chittagong Hill Tracts (CHT) areas of
Bangladesh i.e. Bandarban, Rangamati and Khagrachari during May to September
2014 to study the genotype environment interaction effect on yield of some
selected hill cotton genotypes. The experiment consisted of two factors: Factor A:
Location (3 locations) - L1: Bandarban; L2: Rangamati and L3: Khagrachari;
Factor B: Different cotton genotypes- G1: HCG-4; G2: HCG-13, G3: HCG-15, G4:
HCG-21, G5: HCG-26, G6: HCG-42, G7: HCG-51 and V8: HC-1 (Check). The two
factors experiment was laid out in split-plot design with three replications where
location factor was assigned in main plot (Bandarban, Rangamati and
Khagrachari) and cotton genotypes in sub-plot. In case of location environment,
the maximum boll per plant was recorded from Bandarban (19.13) whereas the
minimum boll per plant from Rangamati (16.23). The highest single boll weight
was recorded from Bandarban (4.65 g) whereas the lowest from Rangamati (3.92
g). The highest seed cotton yield per hectare was recorded from Bandarban (1825
kg), whereas the lowest seed cotton yield per hectare from Rangamati (1691 kg).
The highest lint yield per hectare was recorded from Khagrachari (809 kg),
whereas the lowest lint yield per hectare from Rangamati (681 kg). For genotypes,
maximum boll per plant (24.61), single boll weight (5.18 g), seed cotton yield per
hectare (2170 kg) and lint yield per hectare (927 kg) was observed in HCG-13 and
lowest value was observed in check variety HC-1 for all the cases. In case of
interaction of environments and genotypes, highest boll per plant (27.03), single
ball weight (5.29 g), seed cotton yield per hectare (2170 kg), lint yield per hectare
(981 kg) was observed in HCG-13 at Bandarban than the Rangamati and
Khagrachari. In all the environments check HC-1 gave the lowest value. Genotype
HCG-13 was found highest yielder than the other genotypes and showed better
performance at Bandarban than the Rangamati and Khagrachari.
Description:
A Thesis
submitted to the Faculty of Agriculture
Sher-e-Bangla Agricultural University, Dhaka
in partial fulfilment of the requirements
for the degree
of
MASTER OF SCIENCE (MS)
IN
GENETICS AND PLANT BREEDING
SEMESTER: JULY-DECEMBER, 2014
