Evaluation of growth and yield traits in rice genotypes using multivariate analysis

Shrestha, Jiban; Subedi, Sudeep; Kushwaha, Ujjawal Kumar Singh; Maharjan, B.

doi:10.1016/j.heliyon.2021.e07940

Cited by 14 publications

(8 citation statements)

References 11 publications

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“…Descriptive statistics are applied to analyze the collated data while the hypotheses are decided with the aid of ANOVA analysis. This method is in agreement with the approach of (Ladapo et al, 2020;Shrestha et al, 2021).…”

Section: Data Collection and Analysissupporting

confidence: 86%

Comparative analysis of the sustainable dimensions of food security with COVID-19 and climate change: A case study

al.¹

2022

Int. j. adv. appl. sci.

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This study examined the comparative analysis of the sustainable dimension of food security with COVID-19 and climate change in the Ebonyi State of Nigeria. It is aimed at developing a scientific response to the basic dimensions of food security in this era of COVID-19. This study employed purposive and random sampling techniques to select 180 respondents from the area using a structured questionnaire. ANOVA technique was used to validate the quantitative statistics of the results. Results showed that the COVID-19 era caused more harm to agricultural production leading to a drastic reduction in agricultural yields, food supply chain, and agricultural inputs and materials in the area. There was a forceful drop in availability, affordability, accessibility, stability, and utility of agricultural inputs and materials in the area as compared to the period prior to the pandemic which showed significant increases in agricultural yields and the food supply chain. The perception of respondents to climate change was recorded as a major threat affecting food security in the area. Government subsidization of agricultural inputs and materials, as well as the adoption of proven climate change adaptation and mitigation strategies, were overtly recommended.

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Section: Data Collection and Analysissupporting

confidence: 86%

Comparative analysis of the sustainable dimensions of food security with COVID-19 and climate change: A case study

al.¹

2022

Int. j. adv. appl. sci.

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“…Similarly, Girma, et al [15] reported significant differences among 64 rice genotypes on their days to heading, days to maturity and plant heigh. A significant variation for plant height and panicle length was also reported by Shrestha [25] while studying the variability of 40 rice genotypes. The variability among the newly introduced and tested genotypes was highly significant for their plant height, panicle length and 1000 seed weight were less significant for the measured traits of days to 50% heading and days to 85% maturity.…”

Section: Discussionsupporting

confidence: 59%

Diurnal Variation of Trace Gas Fluxes during the Vegetative Lag Phase in Furrow-Irrigated Rice Production

Gebrie¹,

Desta²,

Desalegn³

2022

J Rice Res Dev

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In Ethiopia, the current rice productivity is very low which is attributed to different abiotic and biotic constraints significantly impacting rice productivity particularly in the north western parts of the country. In an effort to improve the productivity of rice, the national rice breeding program of the country is introducing and evaluating different rice germplasms targeting their adaptability and agronomic performance. Likewise, 352 lowland rice genotypes were introduced and evaluated using augmented randomized complete block experimental design (Augmented-RCBD) with a plot area of 2.5 m 2 involving 4 rows per plot. The seeds were drilled in rows with a seed rate of 60 kg per hectare. NPS fertilizer (124 kg per hectare) and Urea (100 kg per hectare) fertilizers were applied. The quantitative traits such as days to 50% heading, days to 85% maturity, plant height, panicle length, number of filled grains per a panicle and number of unfilled grains per a panicle, and 1000 seed weight were collected and subjected to descriptive statistics (mean performance), ANOVA and multivariate analysis (principal component analysis and clustering analysis) using SAS 9.4 and XLSTAT 2014.5.03 computer programs respectively so as to determine the extent and pattern of the genetic diversity among the tested lowland rice genotypes. From the ANOVA considering the mean square value of the quantitative traits of the treatments (Mean square (MS) of treatments) it has been observed that there is a significant variation for all the traits confirming the presence of genetic variability among the genotypes. The first three principal components (PC1, PC2 and PC3) were identified with a total cumulative variation of 78.90% showing that the genotypes could be grouped into different classes and from the distribution plot, the tested genotypes were almost uniformly distributed in four quadrants pointing the presence of genetic diversity among the genotypes. The clustering analysis result also strengthened the presence of a genetic diversity among the tested rice genotypes where the genotypes were grouped into five clusters with different Euclidian distances.

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“…In this study, except for panicle length, all the parameters showed high heritability values (>80 %), suggesting that these traits can be used as selection criteria for aromatic rice yield improvement [ 43 ]. The success of a crop improvement program depends on the wide genetic variability and high heritability of the traits [ 44 ]. High GCV and PCV for yield and yield-contributing traits of rice were noted by earlier researchers [ [45] , [46] , [47] ] which corroborated the results of the present study.…”

Section: Discussionmentioning

confidence: 99%

Genetic characterization and diversity analysis of indigenous aromatic rice

Mondal,

Pradhan,

Das

et al. 2024

Heliyon

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Evaluation of growth and yield traits in rice genotypes using multivariate analysis

Cited by 14 publications

References 11 publications

Comparative analysis of the sustainable dimensions of food security with COVID-19 and climate change: A case study

Comparative analysis of the sustainable dimensions of food security with COVID-19 and climate change: A case study

Diurnal Variation of Trace Gas Fluxes during the Vegetative Lag Phase in Furrow-Irrigated Rice Production

Genetic characterization and diversity analysis of indigenous aromatic rice

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