Preliminary study of water requirements in onion (Allium cepa L.) cv. Valcatorce in relation to seed production
Article Sidebar
Main Article Content
Abstract
The effect of water stress applied in different periods of the life cycle of onion (Allium cepa L.) (cv. Valcatorce) on seed production of crops managed by the "seed-bulb-seed" technique was evaluated. Drought effects were obtained by interruption of irrigation during the following phenological phases: 1) Vegetative, from plant emergence to just prior elongation of flower stalks; 2) Flower stalk growth; 3) Fruit growth and 4) Control, normally irrigated according to the technique used in the region of La Consulta, Mendoza, Argentina. The following parameters were evaluated: a. Umbels per plant; b. Flowers per umbel; c. Seed number per umbel; d. Foliage dry weight; e. Weight of 1000 seeds. Seed yield per hectare and seed number per flower were also calculated. Water potentials (in MPa) reached by plants at the end of each treatment were: in 1) -1.26; in 2) -0.9; in 3) -1.02 and in 4) -0.28 to -0.60 MPa. The results show that drought during the vegetative period and growth of flower stalks drastically affected seed yield and its components.
Article Details
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
How to Cite
References
Brown, M. J., Wright, J. L., & Kohl, R. A. (1977). Onion-seed yield and quality as affected by irrigation management. Agronomy Journal, 69, 369-372.
Curry, A. S. (1937). Irrigation experiments with Early Grano onion. New Mexico Agricultural Experiment Station Bulletin, 245.
Drinkwater, W. O., & Janes, B. E. (1955). Effects of irrigation and soil moisture on maturity, yield, and storage of two onion hybrids. Proceedings of the American Society for Horticultural Science, 66, 267-278.
Ellis, R. H., & Roberts, E. H. (1980). Toward a rational basis for testing seed quality. In P. D. Hebblethwaite (Ed.), Seed Production (pp. 605-635). Butterworths.
Gayal, M. R., Luna, G., Recio De Hernández, E., Rivera, L. E., & Caravallo, E. (1985). Effects of water application rates and planting density on size arrangements of drip-irrigated onions. Journal of Agriculture of the University of Puerto Rico, 69, 383-389.
Hawthorn, L. R. (1938). Cultural experiments with Yellow Bermuda onions. Texas Agricultural Experiment Station Bulletin, 561.
IRAM (Instituto de Racionalización Argentino de Materiales). (1983). Norma Argentina para cebolla de mercado interno (Resolución 297/83).
Jones, S. T., & Johnson, W. A. (1958). Effect of irrigation at minimum levels of soil moisture and of imposed droughts on yield of onions and potatoes. Proceedings of the American Society for Horticultural Science, 71, 440-445.
Lis, B. R. De, Ponce, I., Cavagnaro, J. B., & Tizio, R. M. (1967). Studies on water requirements of horticultural crops. II - Influence of drought at different growth stages of onion. Agronomy Journal, 59, 573-576.
Mac Gillivray, J. E. (1948). Effect of irrigation on the yield of onion seed. Proceedings of the American Society for Horticultural Science, 51, 423-427.
Mac Gillivray, J. E. (1950). Effect of irrigation on the yield and pungency of onions. Food Technology, 4, 489-492.
Millar, A. A., Gardner, W. R., & Goltz, S. M. (1971). Internal water status and water transport in seed onion plants. Agronomy Journal, 63, 779-784.
Rabinowitch, H. D., & Brewster, J. L. (1991). Onions and allied crops (Vol. 1: Botany, Physiology, and Genetics). CRC Press.
Scholander, P. F., Hammel, E. D., Bradstreet, L., & Hemmingsen, E. A. (1965). Sap pressure in vascular plants. Science, 148, 339-346.
Strydom, E. (1967). Irrigation studies with onions. South African Journal of Agricultural Science, 10, 767-780.
Laboratorio de Salinidad de los EE.UU. (1977). Diagnóstico y rehabilitación de suelos salinos y sódicos (62a ed.). LIMUSA.