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Genetic variability and heritability studies in sunflower inbred lines

Indian Agricultural Research Journals

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Title Genetic variability and heritability studies in sunflower inbred lines
 
Creator S J GAHUKAR
SANGITA U FATAK
 
Subject Genetic, Heritability and Inbred lines, Variability
 
Description Sunflower (Helianthus annuus L.) is one of the important oilseed crops after Groundnut, RapeseedMustard and Soybean. Sunflower is an important crop for production of healthy edible oil for cardiac problems due to which sunflower oil has great demand in commence. Breeding programme aim at development of cultivars with high yield and yield components. A wide range of variation has been reported for seed yield, seed number and other important components of yield. The experiment was conducted at Oilseeds Research Centre, Dr. PDKV, Akola during Kharif 2020-2021, to study the Genetic Variability studies in Sunflower Inbred Lines. The experiment consisted of 24 sunflower inbred lines were evaluated with three checks (DRSF 108, DRSF 113 and PhuleBhaskar) respectively and was laid out in Randomized Block Design. In this study illustrated that, the existence of wide ranges of variations for most of the characters among the sunflower inbred lines, Diversity among morphological traits can influence on heterosis and be reliable marker for prediction hybrid potential. The genus sunflower has a very high variability, in wild ecotypes as well in breeding genotypes. Sunflower genotypes differ in plant architecture, types of branching, flower colour and morphology, number and size of heads, seed size and color and many other traits. Analysis of variation indicated that the mean squares of the genotypes were highly significant for all the characters taken under study. The range of variation, as well as genotypic and phenotypic coefficient of variations were high for seed yield per plant, plant height and test weight indicating the scope of improvement through simple selection procedure for obtaining high yield.Broad-sense heritability estimate was maximum for plant height (98.5), while that for seed yield g per plant (97.4) and head diameter (95.6). Hence, higher heritability estimates for these traits indicated that environmental factors did not greatly affect phenotypic variation of these characters.
 
Publisher Indian Society of Oilseeds Research
 
Date 2023-12-14
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/JOR/article/view/146247
10.56739/3r76kt98
 
Source Journal of Oilseeds Research; Vol. 40 No. Specialissue (2023): Journal of Oilseeds Research
0970-2776
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/JOR/article/view/146247/53307
 
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