Estimation of variation and correlation analysis for yield components in black currant cultivars
Abstract
Creating genotypes that will be characterized by high yields, good quality and other favorable agronomic characters is a major objective of most currant breeding programs worldwide. For easier and faster achievement of these goals and identification of superior genotypes suitable for use as parents in future hybridization programs, study of genetic parameters seems to be obligatory. In this regard, the aims of our study were to estimate components of variability and heritability, and do correlation analysis for yield components in order to determine efficient strategies for improving yield in black currant breeding programs. Significant differences between cultivars were established for all studied traits. A high proportion of genotypic variance was found with bush width, no. of shoots per bush, bunch weight and berry weight indicating that genetic improvement for these traits through breeding was achievable. Opposite, seasonal variance was high for bush height, no. of bunch per bush a...nd yield. The high heritability coefficients (0.80-0.94) detected for all traits studied reflect the close agreement between their phenotypic and genotypic values. Also, most pairs of traits were similarly correlated at both phenotypic and genotypic levels. So, yield was significantly and positively correlated with bush height, no of bunch per bush and bunch weight. These results imply a rapid response of black currants to selection.
Keywords:
Components of variability / heritability / phenotypic and genotypic correlation / genetic gain / Ribes nigrum L.Source:
Genetika, 2015, 47, 3, 785-794Publisher:
- Društvo genetičara Srbije, Beograd
Funding / projects:
- Traditional and new products of cultivated and wild growing fruits and grape vines, and by-products durring processing, with special emphasis on indigenous varieties: chemical characterization and biological profile (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-46013)
- Advancing research in agricultural and food sciences at Faculty of Agriculture, University of Belgrade (EU-FP7-316004)
DOI: 10.2298/GENSR1503785R
ISSN: 0534-0012
WoS: 000369703300002
Scopus: 2-s2.0-84957053155
Collections
Institution/Community
Poljoprivredni fakultetTY - JOUR AU - Rakonjac, Vera AU - Djordjević, Boban AU - Fotirić-Akšić, Milica AU - Vulić, Todor AU - Djurović, Dejan PY - 2015 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/3718 AB - Creating genotypes that will be characterized by high yields, good quality and other favorable agronomic characters is a major objective of most currant breeding programs worldwide. For easier and faster achievement of these goals and identification of superior genotypes suitable for use as parents in future hybridization programs, study of genetic parameters seems to be obligatory. In this regard, the aims of our study were to estimate components of variability and heritability, and do correlation analysis for yield components in order to determine efficient strategies for improving yield in black currant breeding programs. Significant differences between cultivars were established for all studied traits. A high proportion of genotypic variance was found with bush width, no. of shoots per bush, bunch weight and berry weight indicating that genetic improvement for these traits through breeding was achievable. Opposite, seasonal variance was high for bush height, no. of bunch per bush and yield. The high heritability coefficients (0.80-0.94) detected for all traits studied reflect the close agreement between their phenotypic and genotypic values. Also, most pairs of traits were similarly correlated at both phenotypic and genotypic levels. So, yield was significantly and positively correlated with bush height, no of bunch per bush and bunch weight. These results imply a rapid response of black currants to selection. PB - Društvo genetičara Srbije, Beograd T2 - Genetika T1 - Estimation of variation and correlation analysis for yield components in black currant cultivars EP - 794 IS - 3 SP - 785 VL - 47 DO - 10.2298/GENSR1503785R ER -
@article{ author = "Rakonjac, Vera and Djordjević, Boban and Fotirić-Akšić, Milica and Vulić, Todor and Djurović, Dejan", year = "2015", abstract = "Creating genotypes that will be characterized by high yields, good quality and other favorable agronomic characters is a major objective of most currant breeding programs worldwide. For easier and faster achievement of these goals and identification of superior genotypes suitable for use as parents in future hybridization programs, study of genetic parameters seems to be obligatory. In this regard, the aims of our study were to estimate components of variability and heritability, and do correlation analysis for yield components in order to determine efficient strategies for improving yield in black currant breeding programs. Significant differences between cultivars were established for all studied traits. A high proportion of genotypic variance was found with bush width, no. of shoots per bush, bunch weight and berry weight indicating that genetic improvement for these traits through breeding was achievable. Opposite, seasonal variance was high for bush height, no. of bunch per bush and yield. The high heritability coefficients (0.80-0.94) detected for all traits studied reflect the close agreement between their phenotypic and genotypic values. Also, most pairs of traits were similarly correlated at both phenotypic and genotypic levels. So, yield was significantly and positively correlated with bush height, no of bunch per bush and bunch weight. These results imply a rapid response of black currants to selection.", publisher = "Društvo genetičara Srbije, Beograd", journal = "Genetika", title = "Estimation of variation and correlation analysis for yield components in black currant cultivars", pages = "794-785", number = "3", volume = "47", doi = "10.2298/GENSR1503785R" }
Rakonjac, V., Djordjević, B., Fotirić-Akšić, M., Vulić, T.,& Djurović, D.. (2015). Estimation of variation and correlation analysis for yield components in black currant cultivars. in Genetika Društvo genetičara Srbije, Beograd., 47(3), 785-794. https://doi.org/10.2298/GENSR1503785R
Rakonjac V, Djordjević B, Fotirić-Akšić M, Vulić T, Djurović D. Estimation of variation and correlation analysis for yield components in black currant cultivars. in Genetika. 2015;47(3):785-794. doi:10.2298/GENSR1503785R .
Rakonjac, Vera, Djordjević, Boban, Fotirić-Akšić, Milica, Vulić, Todor, Djurović, Dejan, "Estimation of variation and correlation analysis for yield components in black currant cultivars" in Genetika, 47, no. 3 (2015):785-794, https://doi.org/10.2298/GENSR1503785R . .