Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-25T05:17:06.041Z Has data issue: false hasContentIssue false

Improvement in rice seed storage longevity from high-temperature drying is a consistent positive function of harvest moisture content above a critical value

Published online by Cambridge University Press:  10 July 2018

K.J. Whitehouse
Affiliation:
T.T. Chang Genetic Resources Center, International Rice Research Institute, Los Baños, Philippines School of Agriculture, Policy and Development, University of Reading, Earley Gate, PO Box 237, Reading RG6 6AR, UK
F.R. Hay*
Affiliation:
T.T. Chang Genetic Resources Center, International Rice Research Institute, Los Baños, Philippines
R.H. Ellis
Affiliation:
School of Agriculture, Policy and Development, University of Reading, Earley Gate, PO Box 237, Reading RG6 6AR, UK
*
Author for correspondence: F.R. Hay, Email: [email protected]

Abstract

Drying reduces seed moisture content, which improves subsequent seed survival periods. Diverse maximum temperatures have been recommended to limit or avoid damage to seeds, but some high-temperature drying regimes may improve subsequent seed quality. Seeds from 20 different accessions of five rice (Oryza sativa L.) variety groups (aromatic, Aus, Indica, temperate Japonica, tropical Japonica) were harvested over several seasons at different stages of maturation and either dried throughout at 15°C/15% relative humidity (RH) or for different initial periods (continuous or intermittent) in different drying regimes at 45°C before final equilibrium drying at 15°C/15% RH. Subsequent seed longevity in hermetic storage at 45°C with 10.9% moisture content was determined. In no case did initial drying at 45°C provide poorer longevity than drying at 15°C/15% RH throughout. There was a split-line relation, which did not differ amongst investigations, between longevity after initial drying at 45°C relative to that at 15°C/15% RH throughout and harvest moisture content, with a break point at 16.5% (a seed moisture status of about –14 MPa). Below 16.5%, relative longevity did not differ with harvest moisture content with little or no advantage to longevity from drying at 45°C. Above 16.5%, relative longevity showed a positive relation with harvest moisture content, with substantial benefit from drying at 45°C to subsequent longevity of seeds harvested whilst still moist. Hence, there are temporal (immediately ex planta cf. subsequent air-dried storage) and water status discontinuities (above cf. below 16.5%) in the effect of temperature on subsequent air-dried seed longevity.

Type
Research Paper
Copyright
Copyright © Cambridge University Press 2018 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

Present address: Department of Agroecology, Aarhus University, Forsøgsvej 1, 4200 Slagelse, Denmark

‡‡

Present address: Australian Grains Genebank, Agriculture Victoria Research, Departments of Economic Development, Jobs, Transport and Resources, Private Bag 260, Horsham, Victoria, 3401, Australia

References

Angelovici, R, Galili, G, Fernie, AR and Fait, A (2010) Seed desiccation: a bridge between maturation and germination. Trends in Plant Science 15, 211218.Google Scholar
Breese, MH (1955) Hysteresis in the hygroscopic equilibria of rough rice at 25°C. Cereal Chemistry 32, 481487.Google Scholar
Chang, TT (1991) Findings from a 28-year seed viability experiment. International Rice Research Newsletter 16, 56.Google Scholar
Chatelain, E, Hundertmark, M, Leprince, O, Le Gall, S, Satour, P, Deligny-Pennick, S, Rogniaux, H and Buitink, J (2012) Temporal profiling of the heat-stable proteome during late maturation of Medicago trunculata seeds identifies a restricted subset of late embryogenesis abundant proteins associated with longevity. Plant Cell and Environment 35, 14401455.Google Scholar
Crisostomo, S, Hay, FR, Reano, R and Borromeo, T (2011) Are the standard conditions for genebank drying optimal for rice seed quality? Seed Science and Technology 39, 666672.Google Scholar
Cromarty, AS, Ellis, RH and Roberts, EH (1982) The Design of Seed Storage Facilities for Genetic Conservation. Rome: International Board for Plant Genetic Resources.Google Scholar
Ellis, RH (2011) Rice seed quality development and temperature during late development and maturation. Seed Science Research 21, 95101.Google Scholar
Ellis, RH and Hong, TD (1994) Desiccation tolerance and potential longevity of developing seeds of rice (Oryza sativa L.). Annals of Botany 73, 501506.Google Scholar
Ellis, RH and Hong, TD (2007) Quantitative response of the longevity of seed of twelve crops to temperature and moisture in hermetic storage. Seed Science and Technology 35, 432444.Google Scholar
Ellis, RH and Roberts, EH (1980) Improved equations for the prediction of seed longevity. Annals of Botany 45, 1330.Google Scholar
Ellis, RH, Hong, TD and Roberts, EH (1988) A low moisture content limit to logarithmic relations between seed moisture content and longevity. Annals of Botany 61, 405408.Google Scholar
Ellis, RH, Hong, TD and Roberts, EH (1992) The low moisture content limit to the negative logarithmic relation between seed longevity and moisture content in three subspecies of rice. Annals of Botany 69, 5358.Google Scholar
Ellis, RH, Hong, T and Jackson, MT (1993) Seed production environment, time of harvest and the potential longevity of seeds of three cultivars of rice (Oryza sativa L.). Annals of Botany 72, 583590.Google Scholar
Ellis, RH, Nasehzadeh, M, Hanson, J and Woldemariam, Y (2018) Medium-term seed storage of 50 genera of forage legumes and evidence-based genebank monitoring intervals. Genetic Resources and Crop Evolution 65, 607623.Google Scholar
FAO (2014) Genebank Standards for Plant Genetic Resources for Food and Agriculture. Rome: Food and Agriculture Organisation of the United Nations.Google Scholar
FAO/IPGRI (1994) Genebank Standards. Rome: Food and Agriculture Organisation of the United Nations/International Plant Genetic Resources Institute.Google Scholar
Hay, FR and Whitehouse, KJ (2017). Rethinking the approach to viability monitoring in genebanks. Conservation Physiology 5, cox009. doi: 10.1093/conphys/cox009Google Scholar
Hay, FR, de Guzman, F, Ellis, D, Makahiya, H, Borromeo, T and Sackville Hamilton, NR (2013) Viability of Oryza sativa (L.) seeds stored under genebank conditions for up to 30 years. Genetic Resources and Crop Evolution 60, 275296.Google Scholar
Hay, FR, Mead, A and Bloomberg, M (2014) Modelling seed germination in response to continuous variables: use and limitations of probit analysis and alternative approaches. Seed Science Research 24, 165186.Google Scholar
Hay, FR, Mead, A, Manger, K and Wilson, FJ (2003) One-step analysis of seed storage data and the longevity of Arabidopsis thaliana seeds. Journal of Experimental Botany 54, 9931011.Google Scholar
Hong, TD, Gedebo, A and Ellis, RH (2000) Accumulation of sugars during the onset and development of desiccation tolerance in immature seeds of Norway maple (Acer platanoides L.) stored moist. Seed Science Research 10, 147152.Google Scholar
IBPGR (1976) Report of IBPGR Working Group on Engineering, Design and Cost Aspects of Long-Term Seed Storage Facilities. Rome: International Board for Plant Genetic Resources.Google Scholar
IBPGR (1985) IBPGR Advisory Committee on Seed Storage: Report of the Third Meeting. Rome: International Board for Plant Genetic Resources.Google Scholar
ISTA (2013) International Rules of Seed Testing. Bassersdorf, Switzerland: International Seed Testing Association.Google Scholar
Kebreab, E and Murdoch, AJ (1999) A quantitative model for the loss of primary dormancy and induction of secondary dormancy in imbibed seeds or Orobanche spp. Journal of Experimental Botany 50, 211219.Google Scholar
Leprince, O, Pellizzaro, A, Berriri, S and Buitink, J (2017) Late seed maturation: drying without dying. Journal of Experimental Botany 68, 827841.Google Scholar
Lewis, RD (1950) Agricultural Research in Texas, 1947–49. Texas: Texas Agricultural Experiment Station.Google Scholar
Martínez-Eixarch, M and Ellis, RH (2015) Temporal sensitivity of rice seed development from spikelet fertility to viable mature seed to extreme-temperature. Crop Science 55, 354364.Google Scholar
McNally, KL, Childs, KL, Bohnert, R, Davidson, RM, Zhao, K, Ulat, VJ, Zeller, G, Clark, RM, Hoen, DR, Bureau, TE, Stokowski, R, Ballinger, DG, Frazer, KA, Cox, DR, Padhukasahasram, B, Bustamante, CD, Weigel, D, Mackill, DJ, Bruskiewich, RM, Rätsch, G, Buell, CR, Leung, H and Leach, JE (2009) Genomewide SNP variation reveals relationships among landraces and modern varieties of rice. Proceedings of the National Academy of Sciences of the USA 106, 1227312278.Google Scholar
Mead, A and Gray, D (1999) Prediction of seed longevity: a modification of the shape of the Ellis and Roberts seed survival curves. Seed Science Research 9, 6373.Google Scholar
Nasehzadeh, M and Ellis, RH (2017) Wheat seed weight and quality differ temporally in sensitivity to warm or cool conditions during seed development and maturation. Annals of Botany 120, 479493.Google Scholar
Nellist, ME (1980) Safe drying temperatures for seed grain, pp. 371388 in Hebblethwaite, PD (ed), Seed Production. London: Butterworths.Google Scholar
Porter, JR and Gawith, M (1999) Temperatures and the growth and development of wheat: a review. European Journal of Agronomy 10, 2336.Google Scholar
Reaño, R, Sackville Hamilton, R and Romero, G (2008) Regeneration guidelines: rice, pp. 111 in Dulloo, ME, Thormann, I, Jorge, MA and Hanson, J (eds), Crop Specific Regeneration Guidelines. Rome, Italy: CGIAR System-wide Genetic Resource Programme.Google Scholar
Roberts, EH and Ellis, RH (1989) Water and seed survival. Annals of Botany 63, 3952.Google Scholar
Royal Botanic Gardens Kew (2018) Seed Information Database (SID). Version 7.1. Available from: http://data.kew.org/sid/ (January 2018).Google Scholar
Sanchez, B, Rasmussen, A and Porter, JR (2014) Temperatures and the growth and development of maize and rice: a review. Global Change Biology 20, 408417.Google Scholar
Sanhewe, AJ, Ellis, RH, Hong, TD, Wheeler, TR, Batts, GR, Hadley, P and Morison, JIL (1996) The effect of temperature and CO2 on seed quality development in wheat (Triticum aestivum L.). Journal of Experimental Botany 47, 631637.Google Scholar
Sinniah, UR, Ellis, RH and John, P (1998) Irrigation and seed quality development in rapid-cycling Brassica: soluble carbohydrates and heat-stable proteins. Annals of Botany 82, 647655.Google Scholar
Tejakhod, S and Ellis, RH (2018) Effect of simulated flooding during rice seed development and maturation on subsequent seed quality. Seed Science Research (in press).Google Scholar
Van Treuren, R, de Groot, EC and van Hintum, ThJL (2013) Preservation of seed viability during 25 years of storage under standard genebank conditions. Genetic Resources and Crop Evolution 60, 14071421.Google Scholar
Walters, C (2015) Orthodoxy, recalcitrance and in-between: describing variation in seed storage characteristics using threshold responses to water loss. Planta 242, 397406.Google Scholar
Wheeler, TR, Craufurd, PQ, Ellis, RH, Porter, JR and Vara Prasad, PV (2000) Temperature variability and the yield of annual crops. Agriculture, Ecosystems and Environment 82, 159167.Google Scholar
Whitehouse, KJ, Hay, FR and Ellis, RH (2015) Increases in the longevity of desiccation-phase developing rice seeds: response to high-temperature drying depends on harvest moisture content. Annals of Botany 116, 245259.Google Scholar
Whitehouse, KJ, Hay, FR and Ellis, RH (2017) High-temperature stress during drying improves subsequent rice (Oryza sativa L.) seed longevity. Seed Science Research 27, 281291.Google Scholar