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Yield components in rice genotypes
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Twelve genotypes of rice (Oryza sativa L.) were evaluated during Kharif 2015 to study the nature and extent of correlation among yield and yield attributing characters, number of tillers per plant, plant height, panicle length, number of grains per panicle, 1000-grain weight, days to first flowering, days to 50 per cent flowering, days to maturity, grain yield per plant.
6p
caygaocaolon11
21-04-2021
13
1
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This information in mind a study was formulated to assess the character association in a set of rice genotypes for the traits contributing to yield under sodic soil condition.
6p
chauchaungayxua11
23-03-2021
12
1
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The present investigation was undertaken with 30 rice genotypes to estimate the nature and magnitude of genetic divergence for yield and nutritional traits. The 30 genotypes were categorized into six clusters based on D² values using agglomerative hierarchical clustering complete linkage based on Mahalanobis distance. Cluster I was largest comprising of nine genotypes followed by cluster III and IV comprising of seven and six genotypes respectively.
13p
chauchaungayxua11
23-03-2021
14
2
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The present research work was conducted at high and normal salt stress soil condition to study the inherent genetic variation existing among the 78 accessions including seven standards (checks) varieties viz., CSR36, CSR10 , CST7-1, CSR27, Usar Dhan 3 for salinity and alkalinity tolerant, while Sambha Sub1 as for general stress, and PUSA 44 as salt stress sensitive were grown in Augmented Randomized Block Design as parents for developing new rice varieties to break the yield barrier under sodic land.
15p
chauchaungayxua10
18-03-2021
11
3
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In the present study, an attempt was made to understand the association and path analysis of quality and component characters for grain yield in rice genotypes.
6p
cothumenhmong9
18-01-2021
19
2
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The present investigation was carried out in rice to measure the character association and direct and indirect effects of component characters on yield using 33 genotypes. The experiment was laid out in a randomized complete block design with two replications at the Agricultural College Farm Bapatla during kharif 2015.
8p
cothumenhmong9
18-01-2021
20
1
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Thirty seven rice genotypes were evaluated for their variability with regards to yield and yield components. Estimates of heritability and genetic advance in percent of mean were also obtained for the above traits. All the characters under study except days to fifty percent flowering exhibited high heritability coupled with high genetic advance as per cent of mean, which indicated that these traits were controlled by additive type of gene action in the inheritance of these characters.
8p
gaocaolon9
22-12-2020
25
2
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The present study was undertaken with the objective to determine the degree of association between yield and it`s component characters and their direct, indirect effects on grain yield in aerobic rice. Twenty two aerobic genotypes with 4 check varieties were evaluated for identifying their efficiency with respect to 10 yield and yield attributing traits.
6p
angicungduoc8
07-11-2020
14
1
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Sixty four landraces were evaluated for 10 yield and its component traits. Analysis of variance showed significant difference among the genotypes to all the characters under both control and low-moisture stress condition. Environmental influence was meagre on expression of characters as evidenced by narrow gap between GCV and PCV for most of the characters.
11p
nguathienthan8
20-10-2020
11
1
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The present study was undertaken with the objective to determine the nature and magnitude of genetic variability, degree of association between yield and its component characters and their direct, indirect effects on grain yield in F7 generation of aromatic rice. The present experiment was carried out with fifty-five aromatic rice genotypes which were evaluated in randomized block design with three replications at Rice section farm, Agricultural Research Station, Rajendranagar, Hyderabad during Kharif, 2011.
9p
chauchaungayxua8
03-10-2020
12
2
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The present study was, therefore, undertaken to understand the association among grain yield and its component characters. Phenotypic and genotypic correlations were worked out on yield and yield contributing characters in 70 genotypes.
6p
chauchaungayxua8
03-10-2020
12
2
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Drought is one of the major abiotic stress that limits rice production in Assam, India. A traditional drought tolerant local cultivar ‘Banglami’ was crossed with a high yielding rice variety ‘Ranjit’ and 180 F2 plants were raised. The 110 polymorphic SSR markers were used for genotyping of F2 plants.
13p
trinhthamhodang1215
23-09-2020
9
2
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The present investigation was carried out with the objectives to estimate genetic variability for yield and yield contributing components. The investigation consisted of twenty rice genotypes and the experiment was conducted during Kharif-2018-19 in Randomized Block Design with three replications.
8p
kethamoi7
26-08-2020
14
2
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Thirty basmati rice genotypes were evaluated in RBD with three replications with an objective of assessing the genetic variability, heritability, genetic advance for twenty-two yield and quality characters. The results of ANOVA revealed that the mean sum of squares among the genotypes for all the characters were highly significant indicating the presence of ample amount of variability which can be exploited for selection of characters for crop improvement programme.
8p
nguaconbaynhay7
15-08-2020
15
1
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The exploitation of yield potential through inter sub specific (inter-racial) hybridization become a challenging task for rice breeders. Grain yield improvement is considered to be prime objective of any breeding programme, quality traits are yet another important consideration of rice breeding in India. Association of yield and yield components and among grain quality traits thus assumes a unique prominence as the basis for selecting desirable high yielding genotypes with good grain quality characters.
8p
caygaocaolon6
30-07-2020
6
1
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Fifty bororice genotypes were evaluated to estimate variability, heritability and genetic advance in yield and yield contributing characters at Directorate of Rice Research Farm, ICRISAT Campus, Patancheru, Hyderabad, during Rabi 2013-14. Analysis of variance indicated the existence of significant genotypic differences among the genotypes for the yield, its components for all the characters. High GCV and PCV values were observed for number of filled grains per panicle, number of unfilled grains per panicle, grain yield per plant.
6p
trinhthamhodang6
09-07-2020
19
2
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Grain yield in rice is considered as a complex trait, determined by the ultimate expression of its individual component traits. Establishing an association between yield and its component traits plays a vital role in stabilizing the trait ‘overall yield’. Correlation and path analysis were examined in 46 rice genotypes including tropical japonica accessions, indica land races and elite indica cultivars as New plant type (NPT) core set along with checks during kharif 2017.
12p
trinhthamhodang1213
29-05-2020
13
0
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In the present investigation, seventy five speciality rices called soft rice genotypes collected from different parts of North-East India (especially Assam) were evaluated to estimate the genetic parameters in the experimental material for selection of the diverse parents among the genotypes for yield and component traits. The experiment was laid out in a randomized block design with three replications at Directorate of Rice Research Farm, ICRISAT Campus, Patancheru, Hyderabad, India.
14p
chauchaungayxua5
08-05-2020
14
1
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Genetic variability and character association for grain yield and its component traits were studied in a set of 90 rice genotypes under rainfed direct seeded condition of Assam. Highest genotypic coefficient of variation was observed for panicle weight, followed by number of primary branches per plant, number of secondary branches per plant and grain yield. Heritability in broad sense was highest for grain weight followed by days to flowering and plant height. High magnitude of heritability, however, was observed for all the traits under study.
8p
chauchaungayxua5
08-05-2020
28
0
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The present study, combining ability estimates were worked out through Line × Tester analysis of 32 hybrids developed by crossing eight lines with four testers to know the genetic architecture of 11 morphological traits under coastal saline condition. The present study was conducted at Plant Breeding Farm, Department of Genetic and Plant Breeding, Faculty of Agriculture, Annamalai University to estimate combining ability, gene action and proportional contribution of cross components in rice genotypes under coastal salinity.
8p
nguathienthan4
21-04-2020
15
1
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