Waterlogging tolerance in lentil (Lens culinaris Medik. subsp. culinaris) germplasm associated with geographic origin
- 242 Downloads
Variation in response to climatic and edaphic factors has resulted in the geographic differentiation and specific adaptation of lentil germplasm to its environment. The germination of lentil seeds can be affected by waterlogging caused by relay sowing into standing rice crops. Consequently, there is a demand for waterlogging-adapted lentil genotypes, particularly at germination. This experimentation investigated the effects of waterlogging at germination on a germplasm collection. Firstly, two contrasting genotypes, ATC 70876 and Nugget, were waterlogged for six durations (0, 3, 6, 9, 14 and 21 days) in a pot soil system in the glasshouse. Six days of waterlogging was the duration for germination where genotypes showed the largest contrast in germination rate; therefore, this duration was applied to a larger number (127) of genotypes from 11 countries in a screening trial. Finally, all 127 genotypes were grown in pots in the open to phenotype morphological traits (seed size, above-ground biomass, time to flower and maturity). There was significant variation among genotypes, and those originating from Bangladesh had the highest germination at 21.2 %. The heritability of germination on waterlogged soil among genotypes was intermediate at H2 = 44.8 %. Correlations between morphological and physiological traits showed that the capability of seeds to germinate on waterlogged soil was negatively correlated to time to maturity (r = −0.643). It was concluded that genotypes from Bangladesh are adapted to waterlogging at germination. With an intermediate heritability for germination under waterlogging conditions, selection for relay sowing through waterlogging tolerance at germination is practicable.
KeywordsGermination Lens culinaris Lentil Waterlogging
The studentship of author EDW was funded by the Australian Department of Foreign Affairs and Trade (DFAT). The Australian Centre for Agriculture Research (ACIAR) is gratefully acknowledged for part-funding the research through project CIM-2009-038.
Compliance with ethical standards
Conflicts of interest
The authors declare no conflict of interest.
- Barulina H (1930) Lentils of the USSR and other countries. Bull Appl Bot Genet Pl Breed, Leningrad Supplement 40:265–304 (In Russian with English summary). doi: 10.1023/A:1018306723777
- Campbell CG (1997) Grass pea, Lathyrus sativus L. Promoting the conservation and use of underutilized and neglected crops. International Plant Genetic Resources Institute, Rome, ItalyGoogle Scholar
- Castro J, Hódar JA, Gómez JM (2006) Seed size. In: Basra AS (ed) Handbook of seed science and technology. The Haworth Press, New York, pp 397–427Google Scholar
- Erskine W, Myveci K, Izgin N (1981) Screening a world lentil collection for cold tolerance. LENS Newsl 8:5–8Google Scholar
- Falconer DS, Mackay TFC (1996) An introduction to quantitative genetics, 4th edn. Longman, LondonGoogle Scholar
- FAO (2015) FAOSTAT Statistical database of the United Nations Food and Agriculture Organization (FAO). RomeGoogle Scholar
- Foolad MR (1996) Response to selection for salt tolerance during germination in tomato seed derived from PI 174263. J Am Soc Hortic Sci 121:1006–1011Google Scholar
- Ghassemi-Golezani K, Aliloo AA, Valizadeh M, Moghaddam M (2008) Effects of hydro and osmo-priming on seed germination and field emergence of lentil (Lens culinaris Medik.). Not Bot Hort Agrobot Cluj-Napoca 36:29–33Google Scholar
- Ginwal HS, Phartyal SS, Rawat PS, Srivastava RL (2005) Seed source variation in morphology, germination and seedling growth of Jatropha curcas Linn. in central India. Silvae Genet 54:76–79Google Scholar
- Sayama T, Nakazaki T, Ishikawa G, Yagasaki K, Yamada N, Hirota N, Hirata K, Yoshikawa T, Saito H, Teraishi M, Okumoto Y, Tsukiyama T, Tanisaka T (2009) QTL analysis of seed-flooding tolerance in soybean (Glycine max [L.] Merr.). Plant Sci 176:514–521. doi: 10.1016/j.plantsci.2009.01.007 CrossRefPubMedGoogle Scholar
- Zohary D, Hopf M (2000) Domestication of plants in the old world: the origin and spread of cultivated plants in West Asia, Europe, and the Nile Valley, 3rd edn. Oxford University Press, USAGoogle Scholar