STUDY ON VARIABILITY AND SELECTION IN F; AND F, GENERATIONS IN CHILLI (Capsicum annuum L.)
Date
2013-06
Authors
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Journal ISSN
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Publisher
HAJEE MOHAMMAD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR.
Abstract
A field experiment was conducted on thirty F; genotypes of chilli (Capsicum
annuum L.) at the experimental field of Genetics and Plant Breeding
Department, Hajee Mohammad Danesh Science and Technology University,
Dinajpur to study on variability and selection in F; and F, generations in chilli
(Capsicum annuum L.) during October, 2011 to April, 2013. Data were
recorded on five important characters viz. Fruit length, fruit diameter, fruit
weight, number of fruits and yield per plant. It was observed that there was
significant variations found among the entries for fruit length (48.23-71.61),
fruit diameter (8.58-10.69), fruit weight (0.876-3.301), number of fruits (120.8-
272) and most important characters yield per plant (138.09-815.32). Best on
those remarkable variations among the 30 F3 entries under 5 important
characteristics 15 entries were recorded on randomly of each single cross and
selected for F, progenies. In Fy progenies it was also observed significant
variations among the entries for fruit length (47.03-79.87), fruit diameter (7.95-
12.92), fruit weight (1.46-3.47), number of fruits (169-350.1), yield per plant
(277.028-1106.326). The observations were recorded on 16 randomly selected
plants in each single cross of Fy progenies in chilli. Based on the findings of the
present investigation 8 entries (08-328-1, 08-316-4, 08-207-13, 08- 106-6, 08-
118-10, 08-302-14, 08-37-4 and 08-158-5) were selected as better parents. 08-
328-1 was selected first position based on highest yield per plant (1106.326),
highest fruit weight (3.477), highest fruit diameter (12.922), highest fruit length
(79.879) and 3™ highest number of fruits (318.2). 08-316-4 entries selected a
positions based on highest number of fruits (350.1), 2" highest in yield per
plant (1014.961), 2™ highest in fruit diameter (12.137), 3" highest in fruit
weight (2.897) & 9" highest in fruit length (60.889). Similarly 08-207-13
selected 3" position, 08-106-06 (4), 08-118-1 (5™), 08-302-14 (6"), 08-37-4
(7") and 08-158-5 (8'") were selected better parents & suggested for further Fs
generations.
Description
Chilli (Capsicum annuum L.) is one of the most important vegetable-cum-spice
crops valued for its aroma, taste, flavour and pungency. A wide range of variability
reportedly exists in this crop (Nandi, 1992; Munshi and Behera, 2000). Cultivation
in smallholdings by individual farmers under diverse environmental conditions is
thought to have contributed to this vast variability. This also implies the potential
for utilizing such variability in crop improvement programmes. Although an
estimate of genetic variability is often considered a pre-requisite for initiating
appropriate breeding procedures, no previous reports on locally adapted landraces
of chilli are available from Bangladesh. Therefore, the current study was
undertaken with the aim of estimating genetic variability and selection in the
under-exploited landraces of vegetable chilli (C. annuum L.) in Bangladesh.
Keywords
Direct and indirect contributions of various characters toward fruit yield, Extent of variability generate by single, Association analysis of related family