عنوان مقاله [English]
Water deficit is a great constraint for agricultural productivity world wide. Mungbean is a traditional pulse in arid and semi-arid areas. This research was conducted in a research greenhouse at the Ferdowsi university of Mashhad to investigate the impact of five drought levels (-0.3, -3, -6, -9, and -12 bar) on yield and morphological characteristics of eight mungbean genotypes (Jalagon17, Kopergaon, D45-6, IlagS6A, MD15-2, MY-17, Berken, Kiloga). The experiment was conducted as factorial in completely randomized design with four replications. The genotypes were exposed to drought stress 10 days after emergence. Some parameters were measured during growing seasons including plant height, leaf number, flower and pod number, length and number of lateral branches. Results showed significant differences of genotypes in all studied parameters in the first stage of stress. Reduction in the flowering and podding time were also observed in most genotypes. Flower numbers was a suitable parameter in assessment of drought tolerant genotypes. Most measured parameters did not show significant differences in all drought stress levels, and interactions at the end of growth season. At this stage, weight of pods was the best index. At the end of growing season, all of the measured parameters showed a reduction with increasing levels of drought stress. The highest amount of all parameters were observed in field capacity (-0.3 bar). Among the levels of water potential tested, -3 and -6 bars were the best treatments for evaluating drought stress of mungbean genotypes. Among studied genotypes, D45-6, Ilag S6A, and MD 15-2 were the best ones in terms of responding to drought stress.
1- صالحی، معصومه. 1376. اثر افزایش CO2 و تنشهای شوری، خشکی و نیتروژن بر برخی پارامترهای فیزیولوژیک و مورفولوژیک گندم بهاره. پایاننامه کارشناسی ارشد گروه زراعت دانشکده کشاورزی دانشگاه فردوسی مشهد. 95صفحه.
2- ظریف کتابی، حمید و علیرضا کوچکی. 1378. تأثیر تنش خشکی بر رشد و برخی خصوصیات چند گونه یونجه یکساله در شرایط گلخانه. مجله علوم و صنایع کشاورزی و منابع طبیعی، شماره 14: 1-49.
3. Agrawal, S. K., Behl, N. K., and Moolani, M. K. 1976. Response of summer mung to levels of phosphorus and irrigation under different dates of planting. Indian Journal of Agronomy 21: 290-291.
4. Ahmed, S., Nawata, E., and Sakuratani, T. 2006. Changes of endogenous ABA and ACC, and their correlations to photosynthesis and water relations in mungbean (Vigna radita L.) during water logging. Environmental and Experimental Botany 57: 278–284.
5. Amirshahi, M. C. 1978. Mungbean breeding, production, and utilization in Iran. Proceeding 1st International Mungbean Symposium, Los Banos. pp. 233-235.
6. Anonymous. 1978. Mungbean Report. 1975. Asian Vegetable Research and Development Center, Shanhua, Taiwan. 72 Pp.
7. Bashandi, M. M., and Poehlman, J. M. 1974. Photoperiod response in mungbean (Vigna radiate L.). Euphytica, 23: 691-697.
8. Bangal, D. B., Birari, B. M., and Patil, K. G. 1988. Root characters: the important criteria for drought resistance in wheat. Journal of Maharastra Agriculture, 13:242 – 243.
9. Boonjung, H., S. Fukai. 1996. Effects of soil water deficit at different growth stage on rice growth and yield under upland conditions. 1. Growth during drought. Field Crops Research, 48: 37-45.
10. Chiang, M. V., and Hubbell, J. N. 1978. Effect of irrigation on mungbean yield. Proceeding of 1st International Mungbean Symposium, Los Banos, 93-96.
11. Dhingra, K. K., Dhillon, M. S., Grewal, D. S., and Sharma, K. 1991. Performance of maize and mungbean intercropping in different planting patterns and row orientation. Indian Journal of Agronomy 36: 207-212.
12. Eser, D., Ukur, A., and Adak, M. S. 1991. Effect of seed size on yield and yield components in chickpea. International Chickpea Newsletter. 25: 13-15.
13. Jain, H. K., and Mehra, K. L. 1980. Evolution, adaptation, relationships, and uses of the species of Vigna radiate L. in India. pp. 459-468. In: Summerfield, R. J., and Bunting, A. H. (eds.). Advances in legume science. Vol. 1, Proceeding of International Legume Conference, Royal Botanic Gardens, Kew, Ukraine.
14. Jana, P. K., Das, N. R., and Sen, H. 1975. Effect of P, spacing, and irrigation on the grain yield of mung after rice bean. Indian Journal of Agronomy, 20: 374.
15. Leport, L., Turner, N. C., French, R. J., Tennant, D., Thomson, B. D., and Siddique, K. H. M. 1998. Water relation, gasexchange, and growth of cool-season grain legumes in a Mediterranean-type environment. European Journal of Agronomy. 9: 295-303.
16. Morton, F., Smith, R. E., Poehlman, J. M. 1992. The Mungbean. University of Puerto Rico, Mayaguez Campus.
17. Mungomery, V. E., Byth, D. E., and Williams, R. J. 1972. Environmental effects and varietal performance of cowpea (Vigna sinensis) and mungbean (Vigna radiate L.) accessions in south-eastern Queensland. Australian Journal of Experimental Agriculture and Animal Husbandry 12: 523-527.
18. Mwale, S. S., Azam-Ali, S. N., and Massawe, F. J. 2007. Growth and development of bambara groundnut in response to soil moisture. 1. Dry matter and yield. European Journal of Agronomy 26: 345–353.
19. Pannu, R. K., and Singh, D. P. 1993. Effect of irrigation on water use, water-use efficiency, growth and yield of mungbean. Field Crops Research 31: 87-100.
20. PCARR. 1977. The Philippines recommends for mung in 1977. Philippine Council for Agriculture and Resources Research, 62 pp.
21. Sheldrake, A. R., and Saxena, N. D. 1979. The growth and development of chickpea under progressive moisture stress. In: Mussel, H., and Staples, R. C. (eds.): Stress physiology in crop plants. Pp. 12-74. Wiley–Intrescience, NewYork.
22. Singh K. B. 1987. Chickpea breeding. In: Saxera, M. C., and Singh, K. B. (eds). The chickpea C. A. B. international, Wallingford, U.K. Pp. 127-142.
23. Singh, A., and Bhardwaj, R. B. L. 1975. Effect of irrigation and row spacing on summer mung. Indian Journal of Agronomy 20: 185-187.
24. Sivakumar M. V., and Singh, P. 1987. Response of chickpea cultivars to water stress in a semi-arid environment. Experimental Agriculture 23: 53-61.
25. Thomas, M. J., Robertson, S., and Fukai, M. B. 2004. The effect of timing and severity of water deficit on growth, development, yield accumulation and nitrogen fixation of mungbean. Field Crops Research 86: 67–80.
26. Varma, N. K., and Rao, N. S. S. 1975. Effect of different levels of soil moisture on growth, yield and some physiological aspects of nodulation in green-gram. Indian Journal of Agricultural Science 45: 11-16.