Genetic Divergence Studies for Anaerobic Germination Traits in Rice (Oryza sativa L.)

Main Article Content

K. Sudeepthi
T. Srinivas
B. N. V. S. R. Ravi Kumar
D. P. B. Jyothula
Sk. Nafeez Umar

Abstract

The present investigation was carried out to study the inherent genetic diversity of 107 rice genotypes towards development of rice varieties with tolerance for germination under anaerobic conditions for use in wet direct seeded rice cultivation system. The diversity was evaluated using multivariate analysis technique of Mahalanobis D2. The 107 rice genotypes studied were grouped into nine clusters. Twenty nine genotypes were grouped in cluster II followed by 27, 22, 10, 11 and 5 genotypes each in clusters I, III, IV, VI and cluster VII, respectively. The pattern of distribution of genotypes into various clusters was observed to be at random with no relation to geographical diversity. Results on inter-cluster distances revealed maximum diversity between genotypes of cluster VII and cluster IX, while intra-cluster distance was noticed to be maximum for cluster VI. Cluster IX had recorded higher cluster mean values for all the traits studied. Further, the traits, namely, shoot length, seedling dry weight and anaerobic response index together accounted for 62.45 per cent of the total genetic divergence in this study.

Keywords:
Anaerobic response index, genetic divergence, rice.

Article Details

How to Cite
Sudeepthi, K., Srinivas, T., Kumar, B. N. V. S. R. R., Jyothula, D. P. B., & Umar, S. N. (2020). Genetic Divergence Studies for Anaerobic Germination Traits in Rice (Oryza sativa L.). Current Journal of Applied Science and Technology, 39(1), 71-78. https://doi.org/10.9734/cjast/2020/v39i130482
Section
Original Research Article

References

Khush GS. What it will take to feed 5.0 billion rice consumers in 2030. Plant Mol. Bio. 2005;59:1–6.

Pandey S, Velasco L. Economics of direct seeding in Asia: patterns of adoption and research priorities. In: Pandey S, Mortimer M, Wade L, Lopez K, Hardy B (Eds.) Direct seeding: Research strategies and opportunities. International Rice Res. Instit, Los Banos, Philippines. 2002;3-8.

Hussain MM, Haque MA, Islam MA, Islam MR. Performance of seeds of direct wet seeded rice under on farm irrigated condition in Bangladesh. Bangladesh J. of Environ. Sci. 2003;6:329-333.

Bailey-Serres J, Fukao T, Ronald P, Ismail A, Heuer S, Mackill D. Submergence tolerant rice: SUB1. Rice. 2010;3:138–147.

Yamauchi M, Aguilar AM, Vaughan DA, Seshu DV. Rice (Oryza sativa L.) germplasm suitable for direct sowing under flooded soil surface. Euphytica. 1993;67: 177–184.

Yang J, Li DKS, Luo L, Liu Y, Huang M, Yang G, Liu H, Wang H, Chen Z and Guo T. Identification of stable QTLs and candidate genes involved in anaerobic germination tolerance in rice via high-density genetic mapping and RNA-Seq. BMC Genomics. 2019;20(355):1-15.

Redona ED, Mackill DJ. Mapping quantitative trait loci for seedling vigor in rice using RFLPs. Theor and Appl. Genetic. 1996;92:395–402.

Ismail AM, Ella ES, Vergara GV, Mackill DJ. Mechanisms associated with tolerance to flooding during germination and early seedling growth in rice (Oryza sativa). Annals of Botany. 2009; 103:197–209.

Miro B, Ismail MA. Tolerance of anaerobic conditions caused by flooding during germination and early growth in rice (Oryza sativa L.). Front. in Pl. Sci. 2013;4(269):1-18.

Hsu SK and Tung CW. Genetic mapping of anaerobic germination-associated QTLs controlling coleoptile elongation in rice. Rice. 2015;8(1):1-12.

Joshi E, Kumar D, Lal B, Nepalia V, Gautam P, Vyas AK. Management of direct seeded rice for enhanced resource use efficiency. Pl. Knowled. J. 2013;2(3):119–134.

Chaitanya SM. Variability studies for early vigour, anaerobic germination, yield components in rice (Oryza sativa L.) genotypes. M.Sc (Ag) Dissertation Thesis.Dept. of Genetics & Pl. Breed. Acharya N.G Ranga Agri. Univ. Guntur, India. 2017;38-39.

Kharb RPS, Lather BPS, Deswal DP. Prediction of field emergence through heritability and genetic advance of vigour parameters. Seed Science and Technology.1994;22:461-466.

Mahalanobis PC. A statistical study at Chinese head measurement. J. Statistics Soc., Bengal. 1928;25:301.

Girijarani M, Satyanarayana PV, Suryanarayana Y, Rao RPV, Neerajakshi, Chamundeswari N, Ravikumar BNVSR, Vishnuvardhan KM, Bharathalakshmi M. Development of new flood tolerant rice varieties for coastal Andhra Pradesh. Life Sci. Inter. Rese. J. 2014;1(1):143-147.

Anila M, Swamy MHK, Kale RR. Breeding lines of the Indian mega-rice variety, MTU 1010, possessing protein kinase OsPSTOL (Pup 1), show better root system architecture and higher yield in soils with low phosphorus. Mol. Breed. 2018;38: 147.

ICAR-IIRR News Letter. 2017;15(1):12.

Prasad RKK, Suneetha Y, Srinivas T. Genetic diversity studies in rice (Oryza sativa L.). Electron. J. of Pla. Breed. 2018; 9(4):1335-1341.

Srilakshmi P. Genetic studies on anaerobic germination and seedling vigour traits in rice (Oryza sativa L.). M.Sc (Ag) Dissertation Thesis.Dept. of Genetics & Pl. Breed. Acharya N.G Ranga Agri. Univ., Guntur, India. 2017;94-98.