Genetic Divergence in Sorghum [Sorghum bicolor (L.) Moench] Genotypes under Contrasting Moisture Environments

Main Article Content

Firezer Girma Kebede

Abstract

Sorghum is one of the most important cereal crops in Ethiopia which is grown most dominantly in the low land area where drought predominates. In this area farmer’s preference to improved sorghum variety is dependent on earliness and drought tolerance traits. The objective of the study was to evaluate the genetic diversity of early maturing sorghum genotypes for drought tolerance by using principal component and cluster analysis. Twenty three early maturing sorghum genotypes were phenotyped under post-flowering moisture stressed and non-stressed environment using RCBD design in adjacent experiment. The analysis of variance revealed significant variation among genotypes for most of the traits for both moisture environments. Post-flowering drought reduce the value for all of the traits except flag leaf area and average grain yield was reduced by 21%. Five genetically divergent clusters which showed significant inter cluster distance were observed in both environments. Genotypes in cluster one showed best performance for grain yield and yield components under non-stress environment. Under stressed environment, genotypes under C1, and C2 revealed best performance for drought tolerance and yield traits, respectively. Therefore, the performance of genotypes under these clusters and different clustering pattern observed depicts the divergence of genotypes for drought response which creates opportunity for further improvement through selection and hybridization. Principal component analysis revealed five and seven PC captured 80% and 87% of total variation observed under stressed and non-stressed environment, respectively.

Keywords:
Clustering, early maturing, genetic divergence, post-flowering drought, stress.

Article Details

How to Cite
Kebede, F. G. (2021). Genetic Divergence in Sorghum [Sorghum bicolor (L.) Moench] Genotypes under Contrasting Moisture Environments. Asian Journal of Soil Science and Plant Nutrition, 7(1), 1-11. https://doi.org/10.9734/ajsspn/2021/v7i130100
Section
Original Research Article

References

CSA (Central Statistical Agency). Agricultural sample survey 2016/2017. Volume I. Report on area and production of major crops for private peasant holdings, meher season. Statistical bulletin 578, Central Statistical Agency, Addis Ababa, Ethiopia; 2017.

Rakshit S, Hariprasanna K, Gomashe S, Ganapathy KN, Das IK, Ramana OV, Dhandapani A, Patil JV. Changes in area, yield gains, and yield stability of sorghum in major sorghum‐producing countries, 1970 to 2009. Crop Science. 2014;54(4): 1571-1584.

FAO STAT. Food and Agricultural Organization Statistical Data base: Production and Trade; 2017.
Accessed on August 2, 2020.
Available:http://www.fao.org/faostat/en/#data/QC

Demeke M, Di-Marcantonio F. Analysis of incentives and disincentives for sorghum in Ethiopia. Technical notes series, MAFAP, FAO, Rome; 2013.

Ejeta G, Knoll JE. Marker-assisted selection in sorghum. Genomics-assisted Crop Improvement. Springer, Dordrecht. 2007;187-205.

Brhane G, Wortmann CS, Mamo M, Gebrekidan H, Belay A. Micro-basin tillage for grain sorghum production in semiarid areas of Northern Ethiopia. Agronomy Journal. 2006;98(1):124-128.

ICRA. International Center for Development Oriented research in Agriculture. Strengthening farmer participatory research and development in Jijiga zone: The case of moisture stress reduction in the plains and soil fertility management in the hills.Working document series, 60 Jijiga Ethiopia; 1997.

Geremew G, Asfaw A, Taye T, Tesfaye T, Ketema B, Michael HS. Development of sorghum varieties and hybrids for dryland areas of Ethiopia. Uganda Journal of Agricultural Sciences. 2004;9(1):594-605.

Amelework Beyen. Genetic diversity analysis of lowland sorghum [Sorghum bicolor (L.) Moench] landraces under moisture stress conditions and breeding for drought tolerance in North Eastern Ethiopia. Doctoral Dissertation. University of KwaZulu-Natal, Republic of South Africa; 2012.

Firew Mekbib. Genetic erosion of sorghum (Sorghum bicolor (L.) Moench) in the centre of diversity, Ethiopia. Genetic Resource and Crop Evolution. 2008; 55:351–364.

FAO. Crop water management. Online. AGLW Water Management Group, United Nations FAO, Rome, Italy; 2002.

Stickler FC, Wearden S, Pauli AW. Leaf Area Determination in Grain Sorghum 1. Agronomy Journal. 1961 May;53(3):187-8.

Ali MA, Jabran K, Awan SI, Abbas A, Ehsanullah Zulkiffal M, Acet T, Farooq J,

Rehman A. Morpho-physiological diversity and its implications for improving drought tolerance in grain sorghum at different growth stages. Australian Journal of Crop Science. 2011;5(3):311-320.

Brown JS. Principal component and cluster analyses of cotton cultivar variability across the US cotton belt. Crop Science. 1991;31(4):915-922.

Chahal GS, Gosal SS. Principles and procedures of plant breeding: Biotechnological and conventional approaches. CRC Press; 2002.

Klute A. (Ed.). Methods of soil analysis Part 1: Physical and mineralogical methods. American Society of Agronomy, Madison, Wisconsin, USA. 1986;188.

Singh V, van Oosterom EJ, Jordan DR, Hunt CH, Hammer GL. Genetic variability and control of nodal root angle in sorghum. Crop Science. 2011 Sep;51(5):2011-20.

SAS S. STAT user's guide, version 9.2. Cary, NC, USA: SAS Inst.

Ward Jr JH, Hook ME. Application of an hierarchical grouping procedure to a problem of grouping profiles. Educational and Psychological Measurement. 1963 Apr;23(1):69-81.

Mahalanobis PC. On the generalized distance in statistics. National Institute of Science of India; 1936.

Ali MA, Abbas A, Niaz S, Zulkiffal M, Ali S. Morpho-physiological criteria for drought tolerance in sorghum (Sorghum bicolor) at seedling and post-anthesis stages. International Journal of Agricultural Biology. 2009;11: 674–680.

Sory S, Gaoussou DA, Mory CM, Niaba T, Gracen V, and Eric D. Genetic analysis of various traits of hybrids sorghum (Sorghum bicolor (L) Moench), correlated with drought tolerance. Journal of Plant Biology and Soil Health. 2017;4(1): 9.

Khaton MA, Sagar A, Tajkia JE, Islam MS, Mahmud MS, Hossain AKMZ. Effect of moisture stress on morphological and yield attributes of four sorghum varieties. Progressive Agriculture. 2016;27(3):265-271.

Menezes CB, Ticona-Benavente CA, Tardin FD, Cardoso MJ, Bastos EA, Nogueira DW, Portugal AF, Santos CV, Schaffert RE. Selection indices to identify drought-tolerant grain sorghum cultivars. Genetics and Molecular Research. 2014; 13(4):9817-9827.

Sharma JR. Statistical and biometrical techniques in plant breeding. New Age International (P) Limited Publishers, New Delhi. 1998;432.

Amsalu A, Endashew B. Multivariate analysis of morphological variation in sorghum (Sorghum bicolor (L) Moench) germplasm from Eritrea and Ethiopia. Genetic Resources and Crop Evolution. 1999;46(3): 273-284.

Kline P. An easy guide to factor analysis. London: Routledge; 2014.

Mustafa HSB, Farooq J, Bibi T, Mahmood T. Cluster and principle component analyses of maize accessions under normal and water stress conditions. Journal of Agricultural Sciences, Belgrade. 2015;60(1):33-48.

Mujaju C, Chakuya E. Morphological variation of sorghum landrace accessions on-farm in Semi-arid areas of Zimbabwe. International Journal of Botany. 2008;4: 376-382.