Study of Genetic Diversity in Maize (Zea mays L.) Inbreds
Plant
Volume 5, Issue 2, March 2017, Pages: 31-35
Received: Oct. 29, 2016; Accepted: Nov. 22, 2016; Published: Feb. 16, 2017
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Authors
Mohammad Quamrul Islam Matin, Plant Breeding Division, Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh
Md. Golam Rasul, Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh
A. K. M. Aminul Islam, Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh
M. A. Khaleque Mian, Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh
Nasrin Akter Ivy, Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh
Jalal Uddin Ahmed, Department of Crop Botany, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh
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Abstract
Genetic diversity among 64 CIMMYT and BARI developed maize inbred lines was conducted at the research farm of Plant Breeding Division, Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur, Bangladesh during Rabi season 2012-13. The genotypes were grouped into six clusters. Cluster III comprised the maximum genotypes (18) which indicated the genetic similarity among them. The minimum genotype (4) was contained in the cluster V. The highest inter-cluster distance was observed between cluster VI and III (9.37) followed by cluster VI and V(8.22) and cluster V and I (7.75) suggesting wider diversity between them and the genotypes in these cluster could be used as donor parents for new maize hybrid development. The highest intra-cluster distance was observed in cluster V (0.846) and the cluster II was had the least intra cluster distance (0.472). The mean values of cluster VI recorded the highest for thousand seed weight (360.80 gm) and yield per hectare (4.72 ton/ha). It appeared that the early maturing genotypes were included in the cluster V (147.75). The positive absolute values of the two vectors revealed that ear height, ear diameter and yield (t/ha) had the greatest contribution to genetic divergence. The negative values for the two vectors for days to 50% tasseling, ear length and thousand seed weight (TSW) indicated the least responsibility of both the primary and secondary differentiations.
Keywords
Genetic Diversity, Maize, Inbred, Cluster Analysis
To cite this article
Mohammad Quamrul Islam Matin, Md. Golam Rasul, A. K. M. Aminul Islam, M. A. Khaleque Mian, Nasrin Akter Ivy, Jalal Uddin Ahmed, Study of Genetic Diversity in Maize (Zea mays L.) Inbreds, Plant. Vol. 5, No. 2, 2017, pp. 31-35. doi: 10.11648/j.plant.20170502.11
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This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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