scholarly journals Improvement of Qualitative and Quantitative Traits of Autumn Season Specific Lines/ Breeds for Temperate Climatic Conditions of Jammu and Kashmir

2020 ◽  
Vol 6 (6) ◽  
pp. 2717-2725
Author(s):  
Shivkumar Shivkumar ◽  
Bharath Kumar Neelaboina ◽  
Mir Nisar Ahmad ◽  
Kiran R, S Roy Chowdhury
Author(s):  
Amit Kumar ◽  
Hitesh Kumar ◽  
Sunil Kumar ◽  
Vikas Gupta ◽  
G.S. Panwar

Background: The characterization of chickpea genetic resources is a vital step to explore genetic variability in breeding programs. In the present study, we characterized 90 germplasm lines of desi chickpea collected across the Indian chickpea growing region. The identified trait-specific germplasm lines will be used as a valuable genetic resource for the chickpea improvement programme. Methods: An experiment was conducted in augmented design to characterize germplasm lines of chickpea for 13 qualitative and 17 quantitative agro-morphological traits under Bundelkhand agro-climatic conditions. Result: Ample variation was observed for qualitative and quantitative traits. The study revealed that the presences of high variability in qualitative and quantitative traits are useful in the identification of plant genotype for a specific trait, genetic purity analysis, germplasm conservation and also possible use of potential genotype in the breeding program.


2021 ◽  
pp. 1-13
Author(s):  
Showkat A. Zargar ◽  
Aijaz A. Wani ◽  
M. I. S. Saggoo

Abstract Apricot (Prunus armeniaca L.) is a world-wide highly appreciated fruit, with its attractive colour, soft texture and typical flavour. In the current investigation, 68 apricot accessions collected from Jammu and Kashmir, India were analysed to determine the measure of variation using 12 qualitative and 16 quantitative traits with an aim to identify superior apricot accessions with excellent fruit quality traits. High phenotypic variability was observed among the studied apricot accessions with significant differences among most of the qualitative and quantitative traits. Fruit-related characteristics including fruit weight, fruit length, fruit ratio, fruit firmness, fruit shape, fruit suture, stone weight, kernel weight and stone shape were the most diverse with a high coefficient of variation (>30%). One way analysis of variance showed significant differences (P < 0.0001) among all the quantitative traits. Significant positive and negative correlations were observed between all the agronomically important fruit quality traits. The principal component analysis (PCA) revealed that 75.34% of the variability was defined by the first eight components. The unweighted pair group method with arithmetic mean (UPGMA) dendrogram, based on all traits measured grouped the accessions into two main clusters with several sub-clusters. Both UPGMA dendrogram and PCA scatter plot formed a cluster of 14 accessions, having the highest values regarding most important fruit quality traits such as fruit weight, fruit length and width, fruit ratio, stone weight and kernel weight can be treated as potentially superior accessions. These accessions can be used directly for cultivation and in future apricot breeding programmes. The present findings are promising for genetic resource management, cultivar improvement and commercial applications of apricot in Jammu and Kashmir, India.


2021 ◽  
Vol 845 (1) ◽  
pp. 012063
Author(s):  
OA Nikolskay ◽  
A V Solonkin ◽  
E N Kikteva

Abstract Sweet cherry is a thermophilic and whimsical crop that reacts painfully to unfavorable meteorological conditions, such as frost, drought or high humidity in the air and soil. At the same time, this crop requires a uniform supply of heat and moisture during the growing season. In the climatic conditions of the Volgograd region, stressful situations often arise that can partially or completely reduce the yield of fruit crops, especially those introduced to our region from other regions. To reduce the risk of losing the yield of fruit plantations, including sweet cherry, it is necessary to pay special attention to the choice of the variety, as well as the rootstock on which this variety is grafted. The publication presents the results of studying the influence of rootstocks on the qualitative and quantitative indicators of sweet cherry fruits, such as taste, weight, uniformity, color, and productivity. According to the results of the study in the field (in the garden), varietal-rootstock combinations were identified that have one-dimensional, crack-resistant, large fruits, while maintaining high and stable productivity. According to the results of research, it was found that the rootstock affects not only the strength of growth and the shape of the crown, but also the quality of the fruit. The most dependent of the studied varieties on the type of rootstock is Euphoria, the lowest weight of berries was observed on the rootstock VSL-1. At the same time, this rootstock has a higher percentage of resistance to cracking of the fruit. Based on the conducted research, it can be concluded that with the help of rootstock, it becomes possible to influence the quality indicators of fruits.


2018 ◽  
pp. 53-59
Author(s):  
Oleksandr Drozd ◽  
Yevhen Zaika ◽  
T Pyvovar

In the first and second generation of hybrids revealed different character of inheritance of basic qualitative and quantitative traits – dominance, heterosis, over-domination and intermediate inheritance, which allows to assume high efficiency of individual selections in the following generations, with the selection of transgressive forms. The actual ratio of distribution groups in F2 hybrids and the genetic control of these traits in parental forms by weight of 1000 seeds were determined. The source material and the perspective hybrid combinations in the breeding nursery were studied and the perspective numbers were distinguished according to the complex of features.


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