Variability, Correlation and Path Coefficient Analysis: Principle Tools to Explore Genotypes of Brinjal (Solanum melongena L.)

Main Article Content

Sithi Saha
Md. Ehsanul Haq
Shahanaz Parveen
Firoz Mahmud
Shukti Rani Chowdhury
Md. Harun-Ur-Rashid

Abstract

To lessen the pressure on staple crops and to combat hidden hunger, vegetable production is the key to success. Massive studies should be conducted regarding genotype selection to gain the desired yield to overcome these global problems. Brinjal is gaining popularity not only as a vegetable crop but also for its medicinal value. Despite this, the yield and nutritional potentials of brinjal genotypes remain underexploited in many parts of the world. In this study, brinjal genotypes were explored through genetic variability, correlation, and path coefficient analysis to combine yield along with yield contributing variables. Ten quantitative characters of twelve genotypes in a completely randomized design were investigated in this research work at Sher-e-Bangla Agricultural University, Dhaka, Bangladesh, from October 2013 to March 2014. In this study, PCV was found slightly higher than the GCV, which suggested the influence of the environment on the variability of these traits. Characters with a lower difference in GCV and PCV value could be improved by following phenotypic selection. Broad-sense heritability, coupled with moderate to low genetic advance was recorded in fruit length, average fruit weight, plant height and days to maturity. These traits were proposing the predominance of additive gene action. Days to first flowering, secondary branches per plant, fruit length and fruit diameter exhibited positive genotypic correlation with fruit yield per plant. In the case of path analysis, secondary branches per plant proposed maximum direct effect on the yield on both genotypic and phenotypic level followed by average fruit weight and fruit length. To explore interrelations among brinjal genotypes for gaining optimum yield variability, correlation and path coefficient analysis act as prime tools for which this study was conducted.

Keywords:
Correlation, genetic advance, heritability, path coefficient, variability, brinjal/eggplant

Article Details

How to Cite
Saha, S., Haq, M. E., Parveen, S., Mahmud, F., Chowdhury, S. R., & Harun-Ur-Rashid, M. (2019). Variability, Correlation and Path Coefficient Analysis: Principle Tools to Explore Genotypes of Brinjal (Solanum melongena L.). Asian Journal of Biotechnology and Genetic Engineering, 2(3), 1-9. Retrieved from https://www.journalajbge.com/index.php/AJBGE/article/view/30062
Section
Original Research Article

References

Collonnier C, Fock I, Kashyap V, Rotino GL, Daunay MC, Lian Y, Marishka IK, Rajam MV, Servaes A, Ducreux G, Sihachakr D. Application of biotechnology in eggplant (Solanum melongena L.). Plant Cell Tissue Organ Culture. 2001;65:997-107.

Taher D, Solberg SØ, Prohens J, Chou YY, Rakha M, Wu TH. World vegetable center eggplant collection: Origin, composition, seed dissemination and utilization in breeding. Frontiers in Plant Science. 2017;8:1484.

Hassan I, Jatoi SA, Arif M, Siddiqui SU, Ahson M. Genetic variability in eggplant for agro-morphological traits. Sci. Technol. Dev. 2015;34:35-40.

Chowdhury MA, Vandenberg B, Warkentin T. Cultivar identification and genetic relationship among selected breeding lines in cultivars of chickpea (Cicer arietinum L.). Euphytica. 2002;127:317-325.

Sharma TVRS, Swaroop K. Genetic variability and character association in brinjal (Solanum melongena L.). Indian J. Hort. 2000;57:59-65.

Thomas TA, Mathur PN. Germplasm evaluation and utilization. In: Paroda RS, RK. Arora (eds.). Plant Genetic Conservation and Resources, IBPGR, Regional Office, New Delhi - 11012, India. 1991;149-181.

Falconer DS. Introduction to quantitative genetics. 2nd ed. Oliver and Boyd, Edinburg, London. 1981;322-329.

Lokesh B, Reddy PS, Reddy RVSK, Sivaraj N. Variability, heritability and genetic advance studies in brinjal (Solanum melongena L.). Electronic J Plant Breeding. 2013;4:1097-1100.

Azam MG, Hossain MA, Alam MS, Rahman KS, Hossain M. Genetic variability, heritability, correlation and path analysis in mungbean (Vigna radiata L. Wilczek). Bangladesh Agril. Res. 2018;43: 407-416.

Lush JL. Heritability of quantitative characters in farm animals. Pro. 8th int. Congr. Genet. 1949;356-375.

Choudhury LB, Prasad B. Genetic variation and heritability of quantitative characters in Indian Mustard (Brassica juncea L. Czern and Coss). Indian J. Agric. Sci. 1968;38: 820-825.

Burton GW, De Vane EH. Estimating heritability in tall fescue (Festuca arundinacea) from replicated clonal material. Agron. J. 1953;45:478-481.

Johnson HW, Robinson HF, Comestock RS. Estimates of genetic and environmental variability in soybeans. Agron. J. 1955;47:314-318.

Singh RK, Choudhury BD. Biometrical methods in quantitative genetic analysis. Kalyani Publishers, New Delhi. 1985;102-138.

Banerjee S, Verma A, Bisht YS, Maurya PK, Jamir I, Mondal S, Bhattacharjee T, Chattopadhyay A. Genetic variability, correlation coefficient and path coefficient analysis in brinjal germplasm. Int. J. Chem. Studies. 2018;6:3069-3073.

Kumar RS, Arumugam T, Anandkumar CR, Pemalaxmi V. Genetic variability for quantitative and qualitative characters in brinjal (Solanum melongena L.). Academic J. 2013;8:4956-4959.

Muniappan S, Saravannan K, Ramya B. Studies on genetic divergence and variability for certain economic characters in eggplant (Solanum melongena L.). Electronic J. Plant Breeding. 2010;1:426-465.

Patel K, Patel NB, Patel AI, Rathod H, Patel D. Study of variability, correlation andpath analysis in brinjal (Solanum melongena L.). The Bioscan. 2015;10:2037-2042.

Samaee SM, Shobbar ZS, Ashrafi H, Hosseini-Mazinani M. Molecular characterization of olive germplasm in Iran by use of random amplified polymorphic DNA (RAPD): Correlation with phenotypic studied. Acta Hort. 2003;623: 169-175.

Chauhan C, Singh B, Vaishali Singh MK, Kumar M, Singh R. Genetic variability, heritability and genetic advance for yield, yield related components of brinjal Solanum melongena (L.) genotypes. Int. J. Chem. Studies. 2018;6:1086-1089.

Dhaka SK, Soni AK. Genetic variability in brinjal (Solanum melongena L.). Asian J. Hort. 2012;7:537-540.

Sabeena FA, Mehta N, Ansari S, Gavel JP. Variability studies in brinjal (Solanum melongena L.) in Chhattisgarh plains. Electronic J. Plant Breeding. 2011; 2:275-281.

Das A, Koundinya AVV, Pandit MK, Layek S, Pal S. Interrelationship and multivariate analysis of floral and fruit attributes in brinjal. Indian J. Hort. 2018;75:625-630.

Nalini AD, Salimath PM, Patil SA. Association and path coefficient analysis in elite germplasm lines of brinjal (Solanum melongena L.) Karnataka J. Agric. Sci. 2009;22:965-966.

Shinde KG, Birajdar UM, Bhalekar MN, Patel BT. Correlation and path analysis in egg plant (Solanum melongena L.). Veg. Sci. 2012;39:108-110.

Pravu M, Nataranjan S, Veeraragathatham D. Correlation and path coefficient analysis in eggplant (Solanum melongena L.). Indian J. Agric. Res. 2008;42:232-234.