Evaluation of the Performance of Some Rice (Oryza sativa L.) Varieties in Two Different Environments

AL-Salim, Salih Hadi Farhood; Al-edelbi, Reem; Aljbory, Falah; Saleh, Maysoun Mohamed

doi:10.4236/oalib.1102294

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…In this regard, the correlation coefficient, which provides a symmetrical measurement for the degree of association between two variables or characters, which lead to comprehending the nature and magnitude of association among yield and yield components (Al-Daej, 2022). These results were match the findings of Al-Salim et al, (2016) who reported that, number of grains per plant, 1000-grains weight, number of productive tillers per plant and number of tillers per plant was positively correlated with grain yield, although not significantly. At the same time, the number of panicles per plant was highly positive correlation with spikelet fertility %.…”

Section: Phenotypic Correlation Coefficientssupporting

confidence: 91%

Adaptation and Selection Early and High Yielding Production of Some Exotic Rice Genotyps Under Egyption Conditions

El-Badawy,

Soltan,

Bleih

et al. 2024

EBSS

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IGHTEEN introduced rice genotypes along with two local cultivars were evaluated in two successive seasons of 2020 and 2021 at the Experimental Farm of Sakha Agricultural Research station, Sakha, Kafr El-Sheikh, Egypt for grain yield and associated agronomic characters. Analysis of variance showed very highly significant differences among rice genotypes for all growth parameters assessed. Grain yield for most of studied rice genotypes was higher than check cultivars and AFR0280, AFR278-2-2 and AFR278-8 which had an average yield of 14.26, 14.03 and 14.00 (t/ha), respectively under both seasons. Genotypic variance was observed greater than environmental variance. The phenotypic coefficient of variation (PCV) was close to the genotypic coefficient variation (GCV), this indicating the influence of genetic factors on the expression of the characters studied. High broad-sense heritability (>85%) observed for all studied characters, this suggests that these traits are inherited by additive gene action and can be enhanced through direct selection. Grain yield was positively and strongly correlated with plant height, leaf (length and width), leaf area, panicle length, primary branches, panicle weight, spikelet per panicle and filled grains per panicle. The dendogram obtained from the cluster analysis divided the twenty rice genotypes into four clusters according to yield and its component traits. Hence it is suggested that, these characters could be used as a phenotypic marker for selecting the desirable genotype in the rice breeding programme.

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Section: Phenotypic Correlation Coefficientssupporting

confidence: 91%

Adaptation and Selection Early and High Yielding Production of Some Exotic Rice Genotyps Under Egyption Conditions

El-Badawy,

Soltan,

Bleih

et al. 2024

EBSS

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“…In the present investigation, the grain yield showed positive and significant association with the number of tillers per plant, number of productive tillers per plant, number of filled grains per panicle, the total number of grains per panicle and spikelet fertility in both the crosses in F 2 , (Table 1 and 2). The positive and significant association of number of tillers per plant with single plant yield was reported by Gopikannan andGanesh (2013), Touhiduzzamam et al (2016) and Singh et al (2016); the number of productive tillers per plant with grain yield per plant by Krishnamurthy et al (2014); the number of filled grains per panicle with grain yield per plant by Singh et al (2016) and Pradhan et al (2017);the total number of grains per panicle with grain yield per plant by Gunasekaran et al (2010), Shiva Prasad et al (2013 and Singh et al (2016) Salim et al (2016); panicle length with grain yield per plant by Vanniarajan et al (1996) and Gopikannan and Ganesh (2013).…”

Section: Fig 2 Phenotypic Correlation Coefficients Between Yield and Yield Components In Crossmentioning

confidence: 99%

Association analysis of F2 generation in rice (Oryza sativa L.) under salinity condition

2020

EJPB

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Rice occupies a pivotal place in the Indian agriculture and has been grown under diverse ecological conditions and gets exposed to different environmental stresses like drought, salinity and submergence. Development of rice varieties for salinity affected areas is emphasized on the improvement of rice yield potential in a specific environment. Information related to the relationship between yield and its components in the breeding programme particularly for salinity is very limited. Hence, the present investigation was carried out to study the correlation and path analysis in F 2 generation derived from two crosses namely ADT 43 x FL478 (Cross 1) and Improved White Ponni x FL478 (Cross 2) were evaluated at a farmer's field at Vedapatti village, Tuticorin district of Tamil Nadu which is a saline track. Another rice variety FL478 (IR 66946-3R-178-1-1, derived from crossing between Pokkali and IR 29), has been promoted as an improved donor for breeding programs, as it has a high level of seedling stage salinity tolerance and is photoperiod insensitive, shorter and ûowers earlier than the original Pokkali. FL478 also maintains a lower Na + /K + ratio than both the parent lines (Gregorio et al. 2002). Based on its ability to tiller well and maintain high potassium content under salinity stress, FL478 appears to be a good candidate for salinity stress tolerance in rice, particularly at the vegetative stage of growth. In Vedapatti village of Tuticorin district, due to over-pumping of groundwater in the past several years, normal irrigation water has become saline water. Moreover, this village is considered as a hot spot area for the saline condition. Hence, the six generations developed through hybridization techniques were evaluated for salinity tolerance at Vedapatti village. The soil and water samples were collected from the field to analyze the EC and pH. The soil salinity and water quality in the experimental plot were 4.82 ECdSm -1 and 8.09 (pH) for soil and 4.78 ECdSm -1 and 8.19 (pH) for water respectively. From the present findings, it is clear that the characters viz., number of tillers per plant, number of productive tillers per plant, number of filled grains per panicle, total number of grains per panicle and spikelet fertility have to be given prime importance during selection since they expressed significant and positive correlation with single plant yield and also a positive inter-correlation among themselves. Therefore, selection for anyone of the above characters would bring in the simultaneous improvement of other traits and also finally resort to improve the grain yield under salinity condition. Path analysis also revealed that selection for the number of productive tillers per plant and the number of filled grains per panicle are to be given prior importance during selection since they had a positive correlation and high direct and indirect effect on grain yield under salinity condition in rice.

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“…However, genotype-environment interaction usually hampers selection of such genotype due to the failure of genotype to show the same characteristic in different environment, since the environmental factors are usually in continuous state of change in both space and time. The understanding of genotype and environment interaction in plant breeding is a matter of major importance (Hammoud andGabr, 2014 andAl-Salim et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Physiological and Genetic Performance of Some Rice Genotypes Grown in Medium and High Salinity Soils

Zayed

Ali

Hammoud

2016

Menoufia Journal of Plant Production

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Salinity is a common abiotic stress that seriously negatively affects rice production in the world. The investigation was carried out at the Experimental Farm of El-Sirw Agricultural Research Station, Damietta governorate, Egypt to investigate the effect of soil salinity levels (6 and 11 dS m -1) on the morphological, leaf chemical constituents and yield traits and phenotypic and genotypic parameters of twelve rice genotypes (

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Evaluation of the Performance of Some Rice (Oryza sativa L.) Varieties in Two Different Environments

Abstract: Abstract

Cited by 5 publications

References 14 publications

Adaptation and Selection Early and High Yielding Production of Some Exotic Rice Genotyps Under Egyption Conditions

Adaptation and Selection Early and High Yielding Production of Some Exotic Rice Genotyps Under Egyption Conditions

Association analysis of F2 generation in rice (Oryza sativa L.) under salinity condition

Physiological and Genetic Performance of Some Rice Genotypes Grown in Medium and High Salinity Soils

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