Correlation and Path Analysis for Yield and its Component Traits in NPT Core Set of Rice (Oryza sativa L.)

Bagudam, Rachana; Eswari, K. B.; Badri, Jyothi; Rao, P. Raghuveer

doi:10.20546/ijcmas.2018.709.013

Cited by 8 publications

(5 citation statements)

References 13 publications

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“…The traits such as, days to fifty per cent flowering (-0.57250), flag leaf width (-0.03980), panicle length (-0.06850), number of filled grains per panicle (-4.83880), test weight (-1.03440) and grain breadth (-0.00020) had negative direct effects on grain yield. These results were similar to the results depicted by Edukondalu et al [14] for number of filled grains per panicle, test weight, grain breadth, Archana et al [15] for plant height, Bagudam et al [16] for number of productive tillers per plant, Dhavaleshvar et al [17] for days to maturity, Sari et al [18] for flag leaf length and spikelet fertility, Deepthi et al [19] for days to fifty per cent flowering, test weight, panicle length and Kulsum et al [8] for panicle weight and number of grains per panicle.…”

Section: Resultssupporting

confidence: 90%

Association Studies in Red Rice Mutant Lines of IRGA-318-11-6-9-2B

Nachiketha, T. K.,

Jakkeral,

Dushyanthakumar, B. M.

et al. 2024

IJECC

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Rice is the important cereal food crop. It provides 20% of the world's dietary energy and predominant dietary energy source. It is estimated that the demand for rice will be 137.30 million tonnes by 2050. In order to achieve this, the production per unit area needs to be increased by mutation in turn creating variation. Induced mutants were grown in the field during Kharif 2022 at the Zonal Agricultural and Horticultural Research Station, Brahmavar, Udupi District, Karnataka the results showed grain yield had positive correlations with several traits including number of productive tillers, number of grains per panicle, panicle weight, spikelet fertility, flag leaf length and width but negative correlations with days to fifty per cent flowering, days to maturity, and plant height. Days to maturity, flag leaf length, plant height, panicle weight, number of productive tillers per plant per plant, number of grains per panicle, spikelet fertility and grain length showed a direct positive effect on grain yield. This indicated the effectiveness of direct selection for these traits in improvement of grain yield per plant. Days to fifty per cent flowering, flag leaf width, panicle length, test weight, number of filled grains per panicle, panicle length, and grain breadth had negative direct effects on grain yield per plant.

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Section: Resultssupporting

confidence: 90%

Association Studies in Red Rice Mutant Lines of IRGA-318-11-6-9-2B

Nachiketha, T. K.,

Jakkeral,

Dushyanthakumar, B. M.

et al. 2024

IJECC

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“…It expressed positive indirect effects through days to 50% flowering (0.0465), days to maturity (0.0495), panicle length (0.1762), number of filled grains per panicle (0.4457), grain width (0.1164), kernel length (0.0771), grain iron content (0.1477), grain zinc content (0.1155) and negative indirect effects through plant height (-0.0783), grain length (-0.0193), 1000 grain weight (-0.0155) and kernel breadth (-0.0066). The results were in agreement with the findings of Edukondalu et al [26], Archana et al [27] and Rachana et al [28].…”

Section: Path Coefficient Analysissupporting

confidence: 93%

Studies on Correlation and Path Coefficient Analysis of Yield and Yield Attributing Characters in Rice Landraces (Oryza sativa L.)

Manasa

Reddy²,

Murthy³

et al. 2022

IJECC

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In order to characterise the correlation and path analysis for yield and yield attributing traits for 66 genotypes including 4 checks in Augmented Block Design replicated thrice during Kharif, 2021, the present investigation was conducted at the Agricultural College, Aswaraopet, Bhadradri, Telangana. The most positive and significant correlation between important traits and grain yield per plant was found to be between the number of panicles per plant and the number of filled grains per panicle indicating yield can be improved through improvement of these traits. The features number of panicles per plant and number of filled grains per panicle had reported the strongest positive direct effect on grain yield per plant, and may be considered as excellent selection criteria for yield improvement, according to path coefficient analysis.

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“…The trait days to 50 percent flowering exhibited significant positive correlation with harvest index (r p = 0.546, rg = 0.711) while it was significant negatively correlated with plant height (r p =-0.431, r g =-0.498), panicle length (r p = -0.290, r g =-0.522).it indicates that dyas to 50% flowering had positive correlation on yield via harvest index. Similar findings have been reported by [11,12].…”

Section: Correlations Coefficientssupporting

confidence: 92%

Correlation and Path Coefficient Analysis for Yield and Yield Attributing Traits in Rice (Oryza sativa L.)

Saran¹,

Gauraha²,

Sao³

et al. 2023

IJPSS

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This study aimed to investigate the correlations among yield and yield component traits and estimate the direct and indirect effects of these traits on grain yield in rice. The experiment was conducted during kharif 2022. Correlation coefficients and path coefficients were analyzed to determine the relationships between these traits and seed yield. The results showed significant positive correlations between seed yield and traits such as effective tillers per plant, total tillers per plant, number of filled grains, spikelet fertility, biological yield, harvest index, and 100 seed weight. The genotypic correlations were slightly higher than the corresponding phenotypic correlations. Path coefficient analysis revealed that biological yield had the maximum direct effect on seed yield, followed by harvest index, panicle length, and number of filled grains per panicle, plant height, and effective tillers per plant, 100 seed weight, and days to 50% flowering. These findings provide valuable information for selecting superior cross combinations in hybrid rice breeding programs to improve grain yield.

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Correlation and Path Analysis for Yield and its Component Traits in NPT Core Set of Rice (Oryza sativa L.)

Cited by 8 publications

References 13 publications

Association Studies in Red Rice Mutant Lines of IRGA-318-11-6-9-2B

Association Studies in Red Rice Mutant Lines of IRGA-318-11-6-9-2B

Studies on Correlation and Path Coefficient Analysis of Yield and Yield Attributing Characters in Rice Landraces (Oryza sativa L.)

Correlation and Path Coefficient Analysis for Yield and Yield Attributing Traits in Rice (Oryza sativa L.)

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