Genetic diversity analysis using morphological and biochemical traits in baby corn (Zea mays)
![](/public/icon/gor.png)
![](/public/icon/pdf.png)
Keywords:
Babycorn, D2 analysis, Genetic diversity, MaizeAbstract
The present investigation was conducted to examine the genetic diversity existing among 24 genotypes of babycorn (Zea mays L.). The experiment was conducted in three replications in randomized block design during rabi 2018-19 at research farm of Bihar Agricultural University, Sabour. Different morphological and biochemical observations were taken to identify diverse genotypes among them. Observations were taken for 10 morphological characters and nine biochemical traits. Analysis of variance showed significant variation in genotypes for all the traits. On the basis of mean performance genotypes Suwan and VQL1 were found to be the best genotypes for baby corn yield. Genotypes LM14 (203.44 q/ha), LM13 (208.73 q/ha), VQL1 (203.25 q/ha), 95IOWA (200.34 q/ha) and Suwan (230.11 q/ha) were found to be the best genotypes for fodder yield. On the basis of D2 Mahalanobis statistical analysis, all the genotypes were grouped into seven clusters. Seven genotypes were found in the cluster III, followed by six genotypes in cluster II and minimum number of genotype was in cluster VI and VII (with one genotype in each cluster). The maximum intra cluster distance was found in cluster V (117.93) followed by cluster III (93.49) and minimum in cluster I (27.64). The maximum inter cluster distance was found in between cluster IV and VII (317.11) and minimum in between cluster I and VII (92.78). The present investigation revealed that cluster IV and VII were most diverse. Genotypes constituted in these clusters may be used as parents for future hybridization.
Downloads
References
Adu G B, Apraku B B, Akromah R, Oliveira A L G, Awuku F J and Gedil M. 2019. Genetic diversity and population structure of early-maturing tropical maize inbred lines using SNP markers. PLoS ONE 14(4): 1–12. DOI: https://doi.org/10.1371/journal.pone.0214810
Azad M A K, Biswas B K, Alam N and Alam S K. 2012. Genetic diversity in maize (Zea mays L.) inbred lines. Agriculturists 10(1): 64–70. DOI: https://doi.org/10.3329/agric.v10i1.11066
Chakraborty M and Sah R P. 2012. Genetic component in baby corn (Zea Mays L.). Plant Archives 12(1): 291–94.
Chouhan D, Maloo S R and Singh D. 2017. Studies on morphological and molecular diversity in speciality corn (Zea mays L.). Indian Journal of Agricultural Research 51(2): 142–48.
Ganesan K N, Nallathambi G, Thura N, Senthil and Tamilarasi P M. 2010. Genetic divergence analysis in indigenous maize germplasms (Zea mays L.). Electronic Journal of Plant Breeding 1(4): 1241–43.
Kumari A, Sinha S, Kumari R, Sahay S and Mandal S S. 2018. Genetic diversity analysis in maize (Zea mays L.) using SSR markers. Journal of Pharmacognosy and Phytochemistry SP1: 1116–20.
Kumar R, Chattopadhyay T, Lajjavati, Mandal S S and Smriti. 2016. Diversity analysis of maize inbred lines on the basis of morphological and simple sequence repeat markers. Ecology Environment and Conservation 22: S147–S153.
Mahalanobis P C. 1936. On generalized distance in statistics. Proceedings of National Institute of Science 2: 49–55.
Marker S and Krupakar A. 2008. Adaptive responses and genetic divergence in local races of maize. Annals of Plant and Soil Research 10(1): 36–38.
Panse V G and Sukhatme P V. 1954. Statistical Methods for Agricultural Workers. ICAR, New Delhi, India
Reddy S M, Kumar S S, Sudharshan M R and Kumar K V. 2013. Genetic divergence in baby corn (Zea Mays L.). International Journal of Innovative Research and Development 2(8): 300–04.
Singh S B, Gupta B B and Singh S P. 2007. Genetic divergence in exotic inbreds of maize (Zea mays L.). Progressive Agriculture 7(1/2): 1–4.
Downloads
Submitted
Published
Issue
Section
License
The copyright of the articles published in The Indian Journal of Agricultural Sciences is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.