Atanassova, B., Shtereva, L., Georgieva, Y., & Balatcheva, E. (2004). Study on seed coat morphology and histochemistry in three anthocyanin less mutants in tomato (Lycopersicon esculentum Mill.) in relation to their enhanced germination. Seed Science & Technology, 32, 79-90.
Atis, I., Atak, M., Can, E., & Mavi, K. (2011). Seed coat color effects on seed quality and salt tolerance of red clover (Trifolium pratense). International Journal of Agriculture and Biology, 13, 363-368.
Baskin, C. C., & Baskin, J. M. (1998). Seeds: ecology, biogeography, and evolution of dormancy and germination. San Diego: Academic Press.
Bewley, D. J., & Black, M. (1994). Seeds: Physiology of Development and Germination. New York: Plenum Press.
Bhatia, I. S., Nagpal, M. L., Singh, P., Kumar, S., Singh, N., Mahindra, A., & Parkash, O. (1979). Chemical nature of the pigment of the seed coat of guar (cluster bean, Cyamopsis tetragonolobus L. Taub). Journal of Agricultural and Food Chemistry, 27, 1274-1276.
Blumenthal, M. J., & McGraw, R. L. (1999). Lotus adaptation, use and management. In P. R. Beuselinck (Ed.), Trefoil: The Science and Technology of Lotus (pp. 97-119). Madison, Wisconsin: CSSA Special Publication Number 28.
Böer, B. (1997). An introduction to the climate of the United Arab Emirates. Journal of Arid Environments, 35, 3-16.
Bortnem, R., & Boe, A. (2003). Colour index for red clover seed. Crop Sciences, 43, 2279-2283.
Chachalis, D., & Smith, M. L. (2000). Imbibition behaviour of soybean (Glycine max (L.) Merrill) accessions with different testa characteristics. Seed Science & Technology, 28, 321-331.
Coste, F., Ney, B., & Crozat, Y. (2001). Seed development and seed physiological quality of field grown bean (Phaseolus vulgarisL.). Seed Science & Technology, 29, 121-136.
Coste, F., Raveneau, M. P., & Crozat, Y. (2005). Spectro-photometrical pod colour measurement: a non-destructive method for monitoring seed drying. Journal of Agricultural Science, 143, 183-192.
Debeaujon, I., Léon-Kloosterziel, K. M., & Koornneef, M. (2000). Influence of the testa on seed dormancy, germination and longevity in Arabidopsis. Plant Physiology, 122, 403-413.
Diaz, P., Borsani, O., & Monza, J. (2005). Lotus-Related Species and their Agronomic Importance. Netherlands: Springer.
Dickson, M. H., & Boettger, M. A. (1982). Heritability of semi-hard seed induced by low seed moisture in beans (Phaseolus vulgaris L.). Journal American Society for Horticultural Science, 107, 69-74.
Duran, J. M., & Retamal, N. (1989). Coat structure and regulation of dormancy in Sinapis arvensis L. seeds. Journal of Plant Physiology, 135, 218-222.
Elias, S. G., & Copeland, L. O. (2001). Physiological and harvest maturity of Canola in relation to seed quality. Agronomy Journal, 93, 1054-1058.
El-Keblawy, A. (2003). Effects of achene dimorphism on dormancy and progeny traits in the two ephemerals Hedypnois cretica and Crepis aspera (Asteracea). Canadian Journal of Botany, 81, 550-559.
El-Keblawy, A., & Lovett-Doust, J. (1998). Persistent, non-seed size maternal effects on the life history traits in the progeny generation in squash, Cucurbita pepo (Cucurbitaceae). New Phytologist, 140, 655-666.
El-Keblawy, A., Shaltout, K. H., Lovett-Doust, J., & Ramadan, A. (1997). Population dynamic of an Egyptian desert shrub, Thymelaea hirsuta. Canadian Journal of Botany, 75, 2027-2037.
El-Keblawy, A., Bhatt, A., & Gairola, S. (2013). Perianth Colour Affect Germination Behavior in the Wind Pollinated Salsola rubescens in the Arabian Deserts. Botany, 92, 69-75.
Fener, M. (1993). Enviromental influences of seed size and composition. Horticultural Reviews, 13, 183-21.
Ghazanfar, S. A., & Fisher, M. (1998). Vegetation of the Arabian Peninsula. Kluwer Academic Publisher. Geobotany, 25, 1-362.
Harper, J. L., & Ogden, J. (1970). The reproductive strategy of higher plants: I. The concept of strategy with special reference to Senecio vulgaris L. The Journal of Ecology, 58, 681-698.
Jacobsen, J. V., Gubler, F., & Chandler, P. M. (1995). Gibberellin action in germinated cereal grains. In P. J. Davies (Ed.), Plant Hormones: Physiology, Biochemistry and Molecular Biology (II Edition, pp. 246-271). Dordrecht, The Netherlands: Kluwer Academic Publishers.
Jongbloed, M. J. (2003). The Comprehensive Guide to the Wild Flowers of the United Arab Emirates. Abu Dhabi: Environmental Research and Wildlife Development Agency.
Karssen, C. M., & Lacka, E. (1985). A revision of the hormone balance theory of seed dormancy: studies on gibberellin and/or abscisic acid-deficient mutants of Arabidopsis thaliana. Plant Growth Substances 1985 (pp. 315-323). Berlin Heidelberg: Springer.
Karssen, C. M., Brinkhorst-Van der Swan, D. L. C., Breekland, A. E., & Koornneef, M. (1983). Induction of dormancy during seed development by endogenous abscisic acid: studies on abscisic acid deficient genotypes of Arabidopsis thaliana (L.) Heynh. Planta, 157, 158-165.
Kelly, K. M., Van Staden, J., & Bell, W. E. (1992). Seed coat structure and dormancy. Plant Growth Regulation, 11, 201-209.
Khan, M. A., & Ungar, I. A. (1986). Life history and population dynamics of Atriplex triangularis. Vegetatio, 66, 17-25.
Khan, M. A., & Ungar, I. A. (1998). Effect of thermoperiod on recovery of seed germination of halophytes from saline conditions. American Journal of Botany, 84, 279-283.
Li, W., Liu, X., Khan, M. A., & Yamaguchi, S. (2005). The effect of plant growth regulators, nitric oxide, nitrate, nitrite and light on the germination of dimorphic seeds of Suaeda salsa under saline conditions. Journal of Plant Research, 118, 207-214.
Li, W. Q., Liu, X. J., Khan, M. A., Tsuji, W., & Tanaka, K. (2008). The effect of light, temperature and bracteoles on germination of polymorphic seeds of Atriplex centralasiatica under saline conditions. Seed Science and Technology, 36, 325-338.
Liu, W., Peffley, E. B., Powell, R. J., Auldb, D. L., & Hou, A. (2007). Association of seed coat color with seed water uptake, germination, and seed components in guar (Cyamopsis tetragonoloba (L.) Taub). Journal of Arid Environment, 70, 29-38.
Luzuriaga, A. L., Escudero, A., & Perez-Garcia, F. (2005). Environmental maternal effects on seed morphology and germination in Sinapis arvensis (Cruciferae). Weed Research, 46, 163-174.
Matilla, A., Gallardo, M., & Puga-Hermiada, M. I. (2005). Structural, physiological and molecular aspects of heterogenity in seeds: a review. Seed Science Research, 15, 63-76.
Morris, E. C., Tieu, A., & Dixon, K. (2000). Seed coat dormancy in two species of Grevillea (Proteaceae). Annals of Botany, 86, 771-775.
Ochuodho, J. O., & Modi, A. T. (2010, September). Association of seed coat colour with germination of three wild mustard species with agronomic potential. Second RUFORUM Biennial Meeting. Entebbe, Uganda.
Ollerton, J., & Lack, A. (1996). Partial predispersal seed predation in Lotus corniculatus L. (Fabaceae). Seed Science Research, 6, 65-69.
Powell, A. A. (1989). The importance of genetically determined seed coat characteristics to seed quality in grain legumes. Annals of Botany, 63, 169-195.
Rolston, M. P. (1978). Water impermeable seed dormancy. The Botanical Review, 44, 365-396.
Sokoloff, D. D., & Lock, J. M. (2005). Loteae. In G. Lewis, B. Schrire, B. Mackinder, & M. Lock (Eds.), Legumes of the world (pp. 455-466). United Kingdom: BATH Press.
Souza, F. H. D. D., & Marcos-Filho, J. (2001). The seed coat as a modulator of seed-environment relationships in Fabaceae. Brazilian Journal of Botany, 24, 365-375.
Venable, D. L., Dyreson, E., & Morales, E. (1995). Population dynamic consequences and evolution of seed traits of Heterosperma pinnatum (Asteraceae). American Journal of Botany, 82, 410-420.
Volis, S., & Bohrer, G. (2013). Joint evolution of seed traits along an aridity gradient: seed size and dormancy are not two substitutable evolutionary traits in temporally heterogeneous environment. New Phytologist, 197, 655-667.
Werker, E. (1981). Seed dormancy as explained by the anatomy of embryo envelopes. Israel Journal of Botany, 29, 22-44.
White, C. N., Proebsting, W. M., Hedden, P., & Rivin, C. J. (2000). Gibberellins and seed development in maize. I. Evidence that gibberellin/abscisic acid balance governs germination versus maturation pathways. Plant Physiology, 122, 1081-1088.
Xing, J., Cai, M., Chen, S., Chen, L., & Lan, H. (2013). Seed germination, plant growth and physiological responses of Salsola ikonnikovii to short-term NaCl stress. Plant Biosystem, 2, 285-297. doi:10.1080/11263504.2012.731017.
Zhang, X. K., Chen, J., Chen, L., Wang, H. Z., & Li, J. N. (2008). Imbibition behavior and flooding tolerance of rapeseed seed (Brassica napus L.) with different testa color. Genetic Resources and Crop Evolution, 55, 1175-1184.
- Abstract viewed - 1966 times
- PDF downloaded - 832 times
- HTML downloaded - 1817 times
- Main document downloaded - 0 times
- Response sheet downloaded - 0 times
Gulf Organization for Research & Development.
Sharjah Seeds Bank and Herbarium, Sharjah Research Academy, Sharjah, UAE.
Ali A. El-Keblawy
Dept of Applied Biology, Faculty of Science and Sharjah Research Academy, University of Sharjah, Sharjah, UAE.
Seed colour affects light and temperature requirements during germination in two Lotus species (Fabaceae) of the Arabian subtropical deserts
Vol 64 No 2 (2016)
Published: May 13, 2016
Heterogeneity in seeds mostly occurs due to physiological, environmental and genetic factors, and these could affect seed dormancy and germination. Therefore, the aim of our study was to assess the effect of seed colour on germination behavior. For this, both light and temperature requirements were assessed in Lotus glinoides and Lotus halophilus (Fabaceae) from the hyper-arid deserts of the United Arab Emirates. Germination was assessed in terms of both final germination level (percentage) and germination rate, as expressed by Timson’s germination velocity index. Lotus glinoides produces black and yellow-colored seeds, and L. halophilus produces green and yellow seeds. Different seed lots were germinated in both light and darkness at different temperatures. Yellow seeds of the two species attained significantly lower germination, compared to black and green seeds. There was no specific light or temperature requirements for the germination of the two coloured seeds of L. glinoides; the effect of interactions between seed colour and both light and incubation temperature, were not significant on the final germination percentage. In L. halophilus, green seeds germinated significantly more in both light and darkness at lower temperatures (15/25 °C) and in light at higher temperatures (25/35 °C), compared to yellow seeds. Yellow seeds germinated faster, compared to black at 15/25 °C in L. glinoides and compared to green seeds at 15/25 °C and 25/35 °C in L. halophilus. Seed colour variation, at least in L. halophilus, could be a survival strategy that would determine the time of germination throughout the year in the unpredictable desert environment.