Biomass accumulation and energy conversion efficiency in aromatic rice genotypes

Shahidullah, SM; Hanafi, Mohamed; Ashrafuzzaman, Md.; Ismail, Mohd Razi; Salam, Md. Abdus; Khair, Abul

doi:10.1016/j.crvi.2009.10.002

Cited by 14 publications

(15 citation statements)

References 7 publications

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“…The result was inconformity with the findings of Raju et al () who also opined NAR as direct measure of photosynthetic efficacy. The third highest positive ‘r’ value 0.61 ( P < 0.01) was noticed between TDM and CGR, this result was in accordance with the findings of Shahidullah et al (). Moreover, significant positive correlation was also noticed between CGR and RGR.…”

Section: Discussionsupporting

confidence: 91%

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Genetic variation, heritability, divergence and biomass accumulation of rice genotypes resistant to bacterial blight revealed by quantitative traits and ISSR markers

Mazid

Rafii

Hanafi

et al. 2013

Physiologia Plantarum

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A field experiment was carried out in order to evaluate genetic diversity of 41 rice genotypes using physiological traits and molecular markers. All the genotypes unveiled variations for crop growth rate (CGR), relative growth rate (RGR), net assimilation rate (NAR), yield per hill (Yhill(-1)), total dry matter (TDM), harvest index (HI), photosynthetic rate (PR), leaf area index (LAI), chlorophyll-a and chlorophyll-b at maximum tillering stage. The CGR values varied from 0.23 to 0.76 gm cm(-2) day(-1). The Yhill(-1) ranged from 15.91 to 92.26 g, while TDM value was in the range of 7.49 to 20.45 g hill(-1). PR was found to vary from 9.40 to 22.34 µmol m(-2) s(-1). PR expressed positive relation with Yhill(-1). Significant positive relation was found between CGR and TDM (r = 0.61**), NAR and CGR (r = 0.62**) and between TDM and NAR (r = 0.31**). High heritability was found in RGR and Yhill(-1). Cluster analysis based on the traits grouped 41 rice genotypes into seven clusters. A total of 310 polymorphic loci were detected across the 20 inter-simple sequence repeats (ISSR) markers. The UPGMA dendrogram grouped 41 rice genotypes into 11 clusters including several sub-clusters. The Mantel test revealed positive correlation between quantitative traits and molecular markers (r = 0.41). On the basis of quantitative traits and molecular marker analyses parental genotypes, IRBB54 with MR84, IRBB60 with MR84, Purbachi with MR263, IRBB65 with BR29, IRBB65 with Pulut Siding and MRQ74 with Purbachi could be hybridized for future breeding program.

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Section: Discussionsupporting

confidence: 91%

“…Higher PR value for the same age of plants was noticed in cultivar Azucena (Zhao et al ). The values of HI and TDM in the present study were found to be low as compared to Shahidullah et al (). Nonetheless, lower HI was also reported by Kole et al () in another rice study.…”

Section: Discussioncontrasting

confidence: 84%

Genetic variation, heritability, divergence and biomass accumulation of rice genotypes resistant to bacterial blight revealed by quantitative traits and ISSR markers

Mazid

Rafii

Hanafi

et al. 2013

Physiologia Plantarum

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“…Some researcher observed high GCV and PCV for number of filled grains per panicle and yield (Akhtar et al, 2011;Zahid et al, 2006) Moreover, high GCV and PCV were also observed for number of tillers per hill (Pandey;Anurag, 2010;Habib et al, 2005). The results of high GCV as well as PCV were supported by Shahidullah et al, (2010) who found the same result in aromatic rice genotypes. High GCV and PCV for the traits like number of unfilled grains per panicle and total number of spikelet's per panicle were observed by Ghosh and Sharma (2012).…”

Section: Phenotypic Coefficient Of Variation (Pcv) Genetic Coefficiesupporting

confidence: 76%

Performance of Yield and Yield Contributing Characteristics of Bc2f3 Population With Addition of Blast Resistant Gene

et al. 2015

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The study was carried out in the University Putra Malaysia (UPM) Rice Research Centre to evaluate the yield performance of newly developed selected blast resistant plants of BC 2 F 3 generations derived from a cross between MR263, a high yielding rice variety but blast susceptible and Pongsu Seribu 1, donor with blast resistant (Pi-7(t) and genes and qLN2 QTL), Malaysian local variety. On the basis of assessed traits, the plants 12, 6, 7, 5, 21, 22, 5, 26, 11, 8, 10, 13 and 15 had the higher yield, blast resistant and good morphological traits. More than 70% heritability was found in days to maturity, plant height, tiller numbers per hill, and panicle per hill, 80% heritability was found in filled grain and yield per hill and more than 90% heritability was found in grain length, grain width and seed weight. Cluster analysis based on the traits grouped 30 plants along with MR263 into seven clusters. According to PCA, the first four principal components account for about 69.3% total variation for all measured traits and exhibited high correlation among the characteristics analyzed.Index terms: Yield; rice; fungi resistance. RESUMOO estudo foi realizado no Centro de Arroz da Universidade Putra Malásia (UPM), para avaliar o desempenho produtivo de plantas resistentes a brunose do arroz recém desenvolvidas de BC 2 F 3 gerações derivadas do cruzamento entre MR263, uma variedade de arroz de alta produtividade, embora suscetível a brunose e Ponsu Seribu 1, doador com resistência a brunose e genes e qLN2 QTL], e também uma variedade local da Malásia. Com base nas características avaliadas, as plantas 12, 6, 7, 5, 21, 22, 5, 26, 11, 8, 10, 13 e 15 apresentaram o maior rendimento, resistência a brunose e boas características morfológicas. Mais de 70% de herdabilidade foram encontradas em dias para maturação, altura da planta, número de perfilhos por cova, e panículas por cova, 80% de herdabilidade foram encontradas em grãos e rendimento por colina e mais de 90% de herdabilidade foi observada em grãos, largura de grãos e peso das sementes. A análise de agrupamento com base nos traços agruparam 30 plantas, juntamente com MR263 em sete clusters. De acordo com o PCA, os quatro primeiros componentes principais responsáveis por cerca de 69,3% da variação total para todas as características medidas apresentaram alta correlação entre as características analisadas. Termos para indexação: Rendimento; arroz; resistência fúngica.

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“…It has been established that genetic divergence analysis among rice genotypes on the basis of morphological traits can be used to classify and differentiate different genotypes in a population [38]. This genetic divergence analysis also plays a vital role in selection of diverse genotypes for the further improvement of rice varieties through breeding [39]. We have succeeded in clustering 45 genotypes into 5 major groups using some quantitative traits for better handling of the diverse genotype as well as better selection for acquisition of higher heterotic vigour in the resulting offspring after crossing.…”

Section: Discussionmentioning

confidence: 99%

Genetic Variability and Selection Criteria in Rice Mutant Lines as Revealed by Quantitative Traits

Oladosu

Rafii

Abdullah

et al. 2014

The Scientific World Journal

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Genetic based knowledge of different vegetative and yield traits play a major role in varietal improvement of rice. Genetic variation gives room for recombinants which are essential for the development of a new variety in any crop. Based on this background, this work was carried out to evaluate genetic diversity of derived mutant lines and establish relationships between their yield and yield components using multivariate analysis. To achieve this objective, two field trials were carried out on 45 mutant rice genotypes to evaluate their growth and yield traits. Data were taken on vegetative traits and yield and its components, while genotypic and phenotypic coefficients, variance components, expected genetic advance, and heritability were calculated. All the genotypes showed variations for vegetative traits and yield and its components. Also, there was positive relationship between the quantitative traits and the final yield with the exception of number of tillers. Finally, the evaluated genotypes were grouped into five major clusters based on the assessed traits with the aid of UPGMA dendrogram. So hybridization of group I with group V or group VI could be used to attain higher heterosis or vigour among the genotypes. Also, this evaluation could be useful in developing reliable selection indices for important agronomic traits in rice.

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Biomass accumulation and energy conversion efficiency in aromatic rice genotypes

Cited by 14 publications

References 7 publications

Genetic variation, heritability, divergence and biomass accumulation of rice genotypes resistant to bacterial blight revealed by quantitative traits and ISSR markers

Genetic variation, heritability, divergence and biomass accumulation of rice genotypes resistant to bacterial blight revealed by quantitative traits and ISSR markers

Performance of Yield and Yield Contributing Characteristics of Bc2f3 Population With Addition of Blast Resistant Gene

Genetic Variability and Selection Criteria in Rice Mutant Lines as Revealed by Quantitative Traits

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