Genetic Parameters Study for Yield and Yield Contributing Characters in Rice (Oryza sativa L.) Genotypes with High Grain Zinc Content

Behera, Partha Pratim; Singh, S. K.; Singh, Dinesh; Longkho, Khonang

doi:10.20546/ijcmas.2020.903.042

Cited by 5 publications

(7 citation statements)

References 2 publications

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“…In this study, the phenotypic coefficient of variation was higher than the genotypic coefficient of variation for all studied traits, indicating the influences of environmental factors on these traits. A similar observation has also been noted by the authors of [ 54 , 56 , 57 ].…”

Section: Discussionsupporting

confidence: 90%

“…However, low genetic advances were observed for grain shape, moisture, crude protein and available carbohydrates of milled rice, crude protein, ether extract ash, crude fiber, and available carbohydrates and stabilized rice bran oil, refractive index (25 • C), specific gravity (25 • C), iodine value (gI/100 g oil), saponification value (mg KOH/g oil), unsaponifiable matter (%), palmitic C16:0, oleic C18:1, linoleic C18:2, eicosenoic C20:1, TSFA%, and TUSFA%. Similar results were also reported by the authors of [53,54,56,57,[59][60][61].…”

Section: Phenotypic Genotypic Coefficient Of Variation and Genetic Ad...supporting

confidence: 91%

“…While the traits recorded lower value of the phenotypic and genotypic coefficient of variation such as grain shape, this finding is expected due to the concentration of breeder selection for the short-grain, i.e., selection to a limited class, which leads to less variation. In addition to increasing the degree of genetic relationship between the lines under study, [ 54 , 57 ] it has been reported that high genetic advance and genotypic coefficient of variation were observed for most of these characters.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Assessment of Genetic Variability and Bran Oil Characters of New Developed Restorer Lines of Rice (Oryza sativa L.)

Awad-Allah

Mohamed

El-Bana

et al. 2022

Genes

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Rice is one of the most important crops in Egypt. Due to the gap between the demand and the availability of the local edible oils, there is need to raise the nutritional value of rice and, therefore, to improve the nutritional value of the consumer. This research was carried out at the Experimental Farm of Sakha Agricultural Research Station, Sakha, Kafr El-Sheikh, Egypt, during the 2019 and 2020 seasons. Five newly developed genotypes of rice, namely NRL 63, NRL 64, NRL 65, NRL 66, and Giza 178 as check variety (control), were used to evaluate the analytical characterization of raw rice bran and rice bran oil from rice bran, study the genetic variability and genetic advance for various quantitative and qualitative traits in rice as well as, rice bran oil. The genotypes were evaluated in a randomized complete block design (RCBD) with three replications. Analysis of variance revealed highly significant variations among the genotypes for all the studied characters. Data revealed that high estimates of the phenotypic coefficient of variance (PCV%) and genotypic coefficient of variance (GCV%) were observed for amylose content percentage, peroxide value (meq/kg oil), myristic C14:0, and arachidic C20:0, indicating that they all interacted with the environment to some extent. The line NRL66 and NRL64 showed the highest and high values of mean performance for grain yield (t/h), grain type (shape), amylose content percentage, crude protein, ether extract and ash of milled rice, crude protein, ether extract, ash, phosphorus, magnesium, manganese, zinc, and iron of stabilized rice bran oil. Genetic advance as a percentage of mean was high for most of the studied traits. It indicates that most likely, the heritability is due to additive gene effects, and selection may be effective. The percentage of advantage over the Giza 178 as the commercial variety was significant and highly significant among the genotypes for all the characters studied in the two years, indicating that the selection is effective in the genetic improvements for these traits.

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Section: Discussionsupporting

confidence: 90%

Section: Phenotypic Genotypic Coefficient Of Variation and Genetic Ad...supporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Assessment of Genetic Variability and Bran Oil Characters of New Developed Restorer Lines of Rice (Oryza sativa L.)

Awad-Allah

Mohamed

El-Bana

et al. 2022

Genes

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show abstract

“…Selection in breeding programs is based on measurements of phenotypic characteristics and genotypic variability and is measured through analysis of variance; similar observations have been made by [ 60 , 61 ]. A similar observation has also been noted by [ 56 , 57 , 62 ], who reported that high genetic advance and genotypic coefficient of variation were observed for most of these characteristics.…”

Section: Discussionsupporting

confidence: 87%

Development of New Restorer Lines Carrying Some Restoring Fertility Genes with Flowering, Yield and Grains Quality Characteristics in Rice (Oryza sativa L.)

Awad-Allah

Elekhtyar

El-Abd

et al. 2022

Genes

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This study was carried out using 22 promising restorer lines of rice and their parental lines to study genetic variability and genetic advance for yield and yield-associated grain quality traits and floral traits. These genotypes are evaluated in a replicated trial using Randomized Complete Block Design (RCBD) with three replications at the Experimental Farm of Sakha Agricultural Research Station, Sakha, Kafr El-Sheikh, Egypt, during the seasons from 2012 to 2020. Analysis of variance revealed that highly significant variations were observed among the genotypes for all the studied characters. Both GCV% and PCV% were high for the number of spikelets per panicle, the number of filled grains per panicle, and panicle weight. The genetic advance in the percentage of mean was high for days to plant height, panicle length, number of spikelets per panicle, number of filled grains per panicle, panicle weight, grain yield per plant, anther length, anther breadth, duration of floret opening, and head rice percentage. Mean performance of the rice genotypes indicated that the genotypes NRL 59, NRL 55, NRL 62, NRL 63, NRL 66, and NRL 54-2 were promising for grain yield and associated desirable traits. Thus, some of these promising lines can be promoted as a new rice variety and could be used as a source for developing new hybrid combinations in hybrid rice breeding programs. The percentage of advantage over better parent and Giza 178 as the commercial variety was significant and there were highly significant desirable values among the genotypes for all the studied traits in the two years, indicating that the selection is effective in the genetic improvements for these traits.

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“…Out of four clusters, cluster I was the largest which comprises thirty-eight genotypes followed by cluster II which had twenty-seven genotypes. Clusters III and IV had one genotype each" Singh and Chaudhary [21], Behera et al [22], Devi et al [23], Singh et al [24] Lakshmi et al [25] [20,22,20,23,25]. "Maximum inter-cluster distances were between clusters III and cluster VI (1203.59) indicating the genotypes falling in these clusters exhibited the highest genetic diversity whereas, minimum inter-cluster distances were observed between clusters II and IV (268.41) indicating the close association and similarity between the genotypes for most of the characters.…”

Section: Resultsmentioning

confidence: 99%

Genetic Attributes for Selection and Assessment of Yield Enhancement in Paddy (Oryza sativa L.)

Manjunatha B,

Niranjana Kumara B

2024

IJPSS

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The present investigation was conducted in the Agricultural and Horticultural Research Station, Kathalagere. The experiment comprised sixty-seven advanced breeding lines of paddy. The experiment was conducted in three replications with 4mx3m of plot size. The observations are recorded on days to fifty per cent flowering, Days to maturity, Plant Height(cm), Panicles per sqm, Grain yield per plot(kg) and Grain yield per hectare (Kg). The data is subjected to analysis for genetic variability and diversity parameters (Key factors of plant breeding). Higher Genetic coefficient of variability (GCV) and Phenotypic coefficient of variability (PCV) are Days to fifty per cent flowering, Days to maturity, Plant height(cm), Panicles per square meter and grain yield per plot (Kgs) should be considered at the time of selecting the genotypes/varieties/breeding lines for progressing and prospering in the yield and yield contribution towards the varietal performance. Genetic diversity studies proved that the traits viz., days to 50 per cent flowering, Days to maturity, Panicles per square meter, Plant height and Grain yield per plot are prompt traits that contributed maximum divergence to the genotypes. Some clusters are composed of superior genotypes that may contribute to the several crossing studies to improve through transgressive segregants with high genetic yield potential and early maturity.

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Genetic Parameters Study for Yield and Yield Contributing Characters in Rice (Oryza sativa L.) Genotypes with High Grain Zinc Content

Cited by 5 publications

References 2 publications

Assessment of Genetic Variability and Bran Oil Characters of New Developed Restorer Lines of Rice (Oryza sativa L.)

Assessment of Genetic Variability and Bran Oil Characters of New Developed Restorer Lines of Rice (Oryza sativa L.)

Development of New Restorer Lines Carrying Some Restoring Fertility Genes with Flowering, Yield and Grains Quality Characteristics in Rice (Oryza sativa L.)

Genetic Attributes for Selection and Assessment of Yield Enhancement in Paddy (Oryza sativa L.)

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