Abstract:
To study the degree of diversity in chili, an experiment was conducted in the growing season
2013-14 at the field Sher-e-Bangla Agricultural University. Dhaka. Genetic divergence,
heritability and genetic advance for 8 characters in 15 genotypes of chili (Capsicum spp 1..)
were studied. Based on D2 values, the genotypes were grouped into 4 clusters. Grouping of
genotypes in different clusters was not related to their geographical origin. Considerable
amount of genotypic and phenotypie coefficients of variation was observed for plant height.
no. of fruits per plant, fruil weight, and total yield, indicating existence of greater diversity for
these characters. High heritability coupled with high genetic advance as percentage of mean
and genetic coefficients of variation was observed in respect of plant height (98.5%). days to
first flowering (95.68%). no of fruits per plant (99.79%). fruit weight (72.62%), fruit
circumference (97.24%), fruit length (98.92%) etc. indicating that these characters are under
control of additive gene or non-environmental effects and could be dependable for yield
improvement in chilies. The maximum inter cluster distances was observed between cluster I
and IV (76.42) followed by the distances between cluster II and IV. Therefore the genotypes
from cluster II along with cluster III and cluster IV should be prioritized in future breeding
prograni for having higher fruit yield.
Description:
A Thesis
Submitted to the Faculty of Agriculture
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE
IN
GENETICS AND PLANT BREEDING
SEMESTER: JANUARY-JUNE, 2014
