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Selecting superior genotypes
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The development of genome-wide genotyping resources has provided terrestrial livestock and crop industries with the unique ability to accurately assess genomic relationships between individuals, uncover the genetic architecture of commercial traits, as well as identify superior individuals for selection based on their specific genetic profile.
16p
vijeeni2711
30-06-2021
13
1
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The extent of variability is of principal importance for the improvement of crop because if there is variability found in the germplasm, there are better chances for selecting superior genotypes (Bose and Mukherjee 2012).
6p
chauchaungayxua10
19-03-2021
14
2
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Thirty five mungbean genotypes were evaluated to select superior parents with genetic diversity based on yield and physiological traits in order to develop high yielding varieties in mungbean. The results of multivariate analysis (D2 ) indicated the presence of considerable genetic divergence among these genotypes.
8p
gaocaolon9
22-12-2020
9
1
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Statistical correlation coefficient is a measure that denotes the magnitude and direction of interrelationship between any two casually related variables. The information on the genotypic and phenotypic interrelationship of cane yield and sugar yield with their component characters interest would be of immense help to the sugarcane breeder. The character association will also help in the selection of superior genotypes from divergent population based on more than one interrelated characters.
8p
trinhthamhodang9
16-12-2020
7
1
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The study was under taken to compare genotypic differences in respect of several fatalities due to high temperature in summer seasons compared to winter for selecting superior heat tolerant tomato genotypes suitable for both the seasons.
8p
caygaocaolon8
07-11-2020
6
2
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Studies on genetic variability with the help of suitable biometrical tools such as coefficient of variability, heritability, and genetic advance become indispensable in breeding programmes for tangible results of desired values. To give a better insight of ancillary characters under selection, correlation and path coefficient analysis are the tools, which are being effectively used for determining the rate of various yield components in different crops, leading to the selection of superior genotypes.
12p
angicungduoc8
07-11-2020
19
2
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The extent of variability and heritability of the characters among the genotypes is the basic source for the exploitation of superior potentiality of genotypes. Calculation of GCV and PCV will gives the extent of environmental influence on the traits, whereas heritability gives the information on the magnitude of inheritance of quantitative traits, while genetic advance will be helpful in formulating suitable selection procedures.
8p
kethamoi7
26-08-2020
10
1
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The present investigation entitled diversity for growth habit in the natural population of indigenous soft pear in the Jammu province was carried out in order to document the available genetic variability in pear germplasm and to select elite pear genotypes possessing superior attributes and quality traits.
9p
nguaconbaynhay7
15-08-2020
11
1
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Fourteen genotypes of cherry tomato were evaluated under modified naturally ventilated polyhouse at the Experimental Farm, Department of Vegetable Science and Floriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur during autumn winter season, 2017-2018 for marketable yield and its component traits to assess the morphological diversity among the genotypes. Based on the mean performance, genotypes viz.
9p
angicungduoc5
14-06-2020
10
1
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Genetic Diversity (GD) present in the germplasm is pre-requisite for crop improvement as it helps in the development of superior recombinants. Knowledge about Genetic diversity between the genotype can be utilized for the selection of diverse parents in hybridization to exploit the heterosis. Mahalanobis D² statistics assist in grouping the genotypes into different clusters.
7p
cothumenhmong5
17-05-2020
8
1
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Combining ability and gene action for yield and yield contributing traits was studied in 13 parental genotypes (5 lines, 8 testers) in a line x tester scheme during rabi, 2017-18. The purpose of the study was to identify and select superior parents and best hybrid combinations on the basis of estimates of general and specific combining abilities.
8p
cothumenhmong5
17-05-2020
20
1
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Preponderance of wood apple seedlings are seen growing naturally at scattered/isolated areas of various agro climatic zones of Gujarat, India, and chance for the selection of superior genotypes are very high due to huge genetic diversity in the exiting populations. In order to reveal the genetic variability in wood apple, as fruit sample with shoot from diverse areas of province were collected and analysed for various physic-chemical attributes.
8p
chauchaungayxua5
05-05-2020
20
2
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An experiment was conducted to study the variability for ascorbic acid, beta carotene and minerals content (phosphorous, potassium and calcium) in knolkhol (Brassica oleracea var. gongylodes L.) genotypes under sub-tropical condition of Jammu, at Vegetable Research Farm, SKUAST-J, Main campus, during the year 2016-17. High heritability (>70%) was estimated for all the quality traits and moderate for marketable knob weight/plant.
6p
chauchaungayxua5
05-05-2020
10
1
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Characterization of cultivars using bio-chemical markers has been successfully used for selection of improved cultivars in mango for breeding programs. The study was conducted at Horticultural research station, Venkataramannagudem for evaluating the variability of mango cultivars to conserve the elite ones and to identify the superior genotypes based on fruit bio-chemical markers for future crop improvement. Thirty four cultivars were characterized using bio-chemical fruit markers in subsequent years to know the genetic diversity in mango.
11p
angicungduoc4
26-04-2020
23
0
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Genetic variability is the pre-requisite for the initiation of any improvement programme for the identification and selection of superior entries over the existing cultivars. The investigation was conducted in 47 genotypes maintained at mulberry germplasm block at CSB-Central Sericultural Research and Training Institute (CSRandTI), Pampore for 13 agro-morphological traits to understand the available genetic variability for future improvement in mulberry.
14p
nguathienthan4
18-04-2020
23
1
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The present investigation entitled analysis of genetic diversity in kale genotypes of Jammu and Kashmir region based on morphological descriptors was carried out in order to reveal the available genetic diversity present in kale genotypes collected from the different kale growing regions of the J&K state including Jammu, Kashmir and Leh and to select the elite genotypes that possess superior leaf yield attributing traits and quality traits. Remarkable variability was present among genotypes for various leaf attributes.
6p
kethamoi4
16-04-2020
7
1
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An experiment was framed to know the genetic variability, heritability, genetic advance and character association among the lines homozygous dominant for gall midge resistance gene Gm4 in the genetic background of ADT 38 variety of rice in advanced backcross (BC1F5) generation of rice. The Phenotypic coefficient of variation (PCV) was higher than the genotypic coefficient of variation (GCV) for all the characters studied. High GCV coupled with high PCV was exhibited by single plant yield. This result creates scope for selection of superior segregants.
8p
quenchua4
16-04-2020
16
1
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Plant genetic resources are the bed rock of any crop improvement programme. Applied breeding programme emphasizes selection within elite germplasm sources to enhance the opportunities of developing genotypes superior to those currently available. Indigenous as well as exotic germplasm constitute important resources for addressing serious breeding issues, viz. increasing genetic variability, improving the derived populations for specific traits especially biotic and abiotic stresses or even yield, enhancing quality and eventually broadening the genetic base of present-day cultivars.
18p
cothumenhmong4
25-03-2020
13
1
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The present investigation entitled diversity for growth habit in the natural population of pecan nut (Carya illinoensis K.) in the Jammu province was carried out in order to document the available genetic variability in pecan nut germplasm and to select elite pecan nut genotypes possessing superior attributes and quality traits. During the survey, data was recorded on sixty (sixty) pecan nut trees growing in different areas of Rajouri and Poonch districts of Jammu province.
8p
cothumenhmong4
23-03-2020
10
2
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In Wood apple the existing variability is low due to the problem of unexploitation and lack of awareness. However, to some extent variation is seen in the genotypes with respect to morphological, physico–chemical parameters and also in productivity. In any crop, the improvement by selection method involves identification of superior types from a genetic population. Thus variability in the population is a pre-requisite for crop improvement and is considered as a boon to a plant breeder.
6p
caygaocaolon3
09-03-2020
10
0
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