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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 1
First page : (1362) Last page : (1367)
Article doi: http://dx.doi.org/10.18782/2320-7051.5678

Correlation between Physiological and Yield Attributes of Orange Flesh Sweet Potato (Ipomoea batatas (L.) Lam.) Genotypes

Meenakshi Badu*, P. Ashok, T.S.K.K. Kiran Patro, K. Sasikala
Department of Vegetable Science, Horticultural College & Research Institute, Dr. Y.S.R.Horticultural University, Venkataramannagudem- 534101, Dist. West Godavari (Andhra Pradesh) India
*Corresponding Author E-mail: badumeenakshi@gmail.com
Received: 10.09.2017  |  Revised: 18.10.2017   |  Accepted: 24.10.2017  


Understanding interrelationships among various traits is vital to plan an effective breeding programme in orange flesh sweet potato (Ipomoea batatas (L.) Lam.). This study was undertaken to determine associations among yield and yield related traits in crop plant so as to identify the major traits of importance that could be used as a basis for clonal selection. A replicated field experiment was carried out using 25 OFSP genotypes. Thus studies on correlation enable the breeder to know the mutual relationship between various characters and determine the component characters on which selection can be used for genetic improvement (Grafuis, 1959).
knowledge of associations between the yield and yield components is essential for planning a sound selection programme (Falconer, 1964). Observations were made on different traits. Phenotypic as well as genotypic correlation coefficient analysis revealed that root tuber yield per hectare is positively and significantly correlated with Petiole length, leaf area, total leaf dry weight, chlorophyll a, chlorophyll b, total chlorophyll, number of branches per plant, fresh weight of whole plant, dry weight of whole plant, fresh weight of root, dry weight of root, leaf area index, specific leaf area, crop growth rate, net assimilation rate, number of root tubers per plant , root tuber length, root tuber girth and root tuber yield per plant.

Key words: Traits, Correlation, Root yield, OFSP

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Badu, M., Ashok, P., Kiran Patro, T.S.K.K. and Sasikala, K., Correlation between Physiological and Yield Attributes of Orange Flesh Sweet Potato (Ipomoea batatas (L.) Lam.) Genotypes, Int. J. Pure App. Biosci.6(1): 1362-1367 (2018). doi: http://dx.doi.org/10.18782/2320-7051.5678