Assessment of Genetic Variability Studies among the Backcross Populations in Rice [Oryza sativa (L.)]

Prabhu, S.

doi:10.18782/2320-7051.2947

Int. J. Pure App. Biosci.

2017

DOI: 10.18782/2320-7051.2947

|View full text |Cite

Assessment of Genetic Variability Studies among the Backcross Populations in Rice [Oryza sativa (L.)]

S. Prabhu¹

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2019

2023

Publication Types

Select...

Article3

Relationship

Self Cite0

Independent3

Authors

Journals

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…observed for days to 50% flowering, kernel length, kernel breadth and kernel length/breadth ratio which showed that the variability for these characters was meagre. These results were in accordance withPrabhu et al (2017) for days to 50% flowering andMohanasundaram et al (2019) for kernel length and length/breadth ratio.The amount of heritable variation present in the population assumes greater importance to achieve gain in selection programme. Most of the characters showed high heritability (above 60).…”

supporting

confidence: 91%

Studies on genetic parameters, correlation and path analysis for yield attributes and Iron content in a backcross population of rice [Oryza sativa (L.)]

Prasannakumari

Akilan²,

Kalaiselvan³

et al. 2020

EJPB

View full text Add to dashboard Cite

In any crop breeding program, the effective selection of traits that are associated with yield depends on the information on nature and magnitude of variation in the traits and its response to the environment. A study was conducted to determine the variability, heritability, correlation and path analysis of yield and yield components in BC 1 F 2 generation of backcross combination, CO 51 × RPHP 48. The population was developed in order to introgress the high iron content in CO 51 background. The narrow difference between GCV and PCV indicates that there was a meagre influence of environment on the expression of 12 traits studied. Broad sense heritability was high for grain iron content and low for kernel length/breadth ratio. Grain yield was found to be significant and positively correlated with the number of productive tillers per plant, panicle weight, the number of grains per panicle and 100 seed weight indicating yield improvement can be achieved through improvement of these traits. The results of genotypic path analysis revealed that the number of productive tillers per plant and kernel length had a high positive direct effect which could be considered as good selection criteria for yield improvement.

show abstract

supporting

confidence: 91%

Studies on genetic parameters, correlation and path analysis for yield attributes and Iron content in a backcross population of rice [Oryza sativa (L.)]

Prasannakumari

Akilan²,

Kalaiselvan³

et al. 2020

EJPB

View full text Add to dashboard Cite

show abstract

Morphological characterization of Katarni rice (Oryza sativa L.) derived backcross population for yield and its contributing traits

Vaibhav

Satyendra

Kumar

et al. 2019

Oryza

View full text Add to dashboard Cite

The aim of backcross breeding is the introgression of a certain trait of interest in a popular variety from a suitable donor variety. Morphological characterization of backcross derived line is a crucial step in backcross breeding programme. Present investigation was framed for the morphological characterization of advance backcross population, developed to introgress semi-dwarf and early maturing traits of Rajendra Sweta and BPT5204 into the background of tall, late maturing scented Katarni rice. The results indicated a significant decrease in the plant height and days of 50 % flowering in the backcross derived lines with respect to Katarni rice. Higher values of phenotypic coefficient of variation (PCV) than the genotypic coefficient of variation (GCV) for all character indicated environmental influence in the development of all characters. High heritability with high genetic advance as percent of mean was observed for 1000 grain weight and plant height. Highly significant and positive correlation with yield per plant was exhibited by traits like 1000 grain weight and leaf aroma. Result of path coefficient analysis indicated direct positive effect of characters like L/B ratio, kernel length and 1000 grain weight on grain yield per plant.

show abstract

Stability analysis of Katarni rice (Oryza sativa) derived lines under different sowing dates

et al. 2023

View full text Add to dashboard Cite

Katarni is a non-basmati traditional aromatic rice (Oryza sativa L.) cultivar of Bhagalpur district of Bihar. This rice is weak strawed, traditionally tall type, late maturing and easily prone to lodging. Due to photosensitive nature, it matures very late only at the end of November and provide a narrow window for the sowing of wheat in farmers’ filed. An experiment was conducted at Bihar Agricultural University, Sabour, Bihar during 2018 and 2019 to develop a semi-dwarf and early maturing lines derived from crossing of Katarni with 3 semi-dwarf high yielding cultivars and were advanced to F5 generation. In this study, 54 derived lines of Katarni in F6 generation were studied on the basis of 14 morphological traits and yield stability was analysed in 4 environments. The environments were created by different sowing dates across two years (2018 and 2019) in a single location at Bihar Agricultural University, Sabour. Significant variability was found among the genotypes and four principal components (PC) identified, out of which two contributed 98.9% of total variation. Six advanced breeding entries were found to be significantly superior over parental checks for grain yield. Five Katarni derived were identified as highly stable genotypes on the basis of GGE and AMMI stability analysis. All four environments were constituted in two mega environments in which first one shared the best set of Katarni-derived lines. The promising advanced breeding lines with higher yield and stable performance can further be evaluated under multi-location testing for varietal release.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Assessment of Genetic Variability Studies among the Backcross Populations in Rice [Oryza sativa (L.)]

Cited by 3 publications

References 0 publications

Studies on genetic parameters, correlation and path analysis for yield attributes and Iron content in a backcross population of rice [Oryza sativa (L.)]

Studies on genetic parameters, correlation and path analysis for yield attributes and Iron content in a backcross population of rice [Oryza sativa (L.)]

Morphological characterization of Katarni rice (Oryza sativa L.) derived backcross population for yield and its contributing traits

Stability analysis of Katarni rice (Oryza sativa) derived lines under different sowing dates

Contact Info

Product

Resources

About