GENETICS OF MALE STERILITY AND HORTICULTURAL CHARACTERS IN Capsicum annuum L.
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Date
2010
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Abstract
ABSTRACT
Chilli and bell pepper (Capsicum annuum L.) popularly known as ‘Lal Mirch’ and ‘Shimla
Mirch’, respectively are important solanaceous crops grown throughout the world. The present
investigation entitled “Genetics of male sterility and horticultural characters in Capsicum annuum L.”
were carried out at research and experimental farm of Department of Vegetable Science, Dr. Y. S.
Parmar University of Horticulture and Forestry, Nauni, Solan, H.P during the years 2007- 2009. The
material included chilli genotypes DKC-12A and DKC-12ms which were male sterile and crossed
with male fertile varieties of bell pepper i.e California Wonder and HC-201. The characters studied
were plant height (cm),number of branches at primary node, leaf length (cm), leaf width (cm), days to
50 per cent flowering, days to fruiting, fruit length (cm), fruit width (cm), number of fruits per plant,
fruit weight(g), number of lobes, fruit yield per plant(g), capsaicin content (%), ascorbic acid content
(mg/100g) and disease incidence. Analysis of variance showed significant variation among various
crosses for all the traits except for plant height, number of branches at primary node, days to 50 per
cent flowering and days to fruiting.F1’s performed in between the parental lines except for yield/plant
and ascorbic acid content. Generally F2’s showed inbreeding depression and B1 and B2 behaved as per
expectations. Generation mean analysis revealed that selection will be effective in improvement of
plant height, leaf length, leaf breadth, days to 50 per cent flowering, days to fruiting, fruit width, fruit
weight, number of lobes capsaicin content, ascorbic acid and disease incidence. Both selection and
heterosis breeding will be effective in the improvement of number of branches at first node, fruit
length, number of fruits per plant and yield per plant. There was dominance of male fertility over
sterility, pendent bearing habit over upright, yellowish purple anther colour over dark blue and partial
dominance of chilli fruit shape over bell shape. All these characters showed monogenic inheritance.
On the basis of present findings it appears that DKC-12A and DKC-12ms can be used to incorporate
male sterility into bell pepper.
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Capsicum annuum L.