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Effect of terminal drought stress on seed yield and its components of some new winter rapeseed lines | ||
| Crop Breeding Journal | ||
| مقاله 4، دوره 6، شماره 2، بهمن 2016، صفحه 33-39 اصل مقاله (98.22 K) | ||
| شناسه دیجیتال (DOI): 10.22092/cbj.2016.107105 | ||
| نویسندگان | ||
| A. Rezaeizad* 1؛ A. H. Shirani Rad2 | ||
| 1Kermanshah Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Kermanshah, Iran. | ||
| 2Seed and Plant Improvement Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. | ||
| چکیده | ||
| Drought causes significant reductions in crop productivity in many parts of the world, including Iran. Identifying genotypes tolerant to drought stress is therefore one of the foremost goals of crop breeding programs. This study investigated the effect of terminal drought stress on yield and yield components of new winter rapeseed lines, and identified new winter rapeseed lines tolerant to terminal drought stress. A field experiment was conducted to evaluate 17 new winter rapeseed lines and two commercial cultivars (Ahmadi and Opera) under three moisture conditions (optimum irrigation, elimination of irrigation from flowering stage, and elimination of irrigation from silique stage) during two cropping seasons (2012-13 and 2013-14) at the Agricultural Research Station of Islamabad-e-Gharb, Kermanshah, Iran. Drought stress significantly affected all measured traits except days to flowering and 1000-seed weight. Based on the average of three conditions, KS7, KR4, L183, Opera, and HW118 had higher seed yields. These lines (except Opera) also produced higher seed yields when irrigation was eliminated from the flowering and silique development stages, and were identified as winter rapeseed lines tolerant to terminal drought stress with high seed yield potential underoptimum irrigation conditions. | ||
| کلیدواژه‌ها | ||
| flowering؛ Rapeseed؛ seed yield؛ silique؛ terminal drought tolerance | ||
| مراجع | ||
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Boyer, J. S. 1982. Plant productivity and the environment. Sci. 218: 443-448.
Champolivier, L., and A. Merrien. 1996. Effects of water stress applied at different growth stages of Brassica napus var. Olieifera I. on yield, yield components and seed quality. Europ. J. Agron. 5: 153-160.
Diepenbrock, W. 2000. Yield analysis of winter oilseed rape (Brassica napus L.): a review. F. Crop. Res. 67(1): 35-49.
Din, J., L. Khan, and R. Gumani. 2011. Physiological and agronomic response of canola varieties to drought stress. J. Animal and Plant Sci. 21(1): 78-82.
Edwards, J., and K. Hertel. 2011. Canola Growth and Development. Department of Primary Industries, State of New South Wales, Australia.
Ghasemyan Ardestani, H., A. H. Shirani Rad, and P. Zandi, 2011. Effect of drought stress on some agronomic traits of two rapeseed varieties grown under different potassium rates. Aus. J. Basic and Appl. Sci. 5(12): 2875-2882.
Ghobadi, M., M. Bakhshandeh, G. Fathi, M. H. Gharineh, K. Alami-Said, A. Naderi, and M. E. Ghobadi. 2006. Short and long periods of water stress during different growth stages of canola (Brassica napus L): Effect on yield components, seed oil and protein contents. J. Agronomy 5(2): 336-341.
Ghodrati, G. R. 2012. Response of grain yield and yield components of promising genotypes of spring rapseed (Brassica napus L.) under non-stress and moisture-stress conditions. Crop Breed. J. 2(1):49-56.
Jenks M. A., and P. M. Hasegawa. 2005. Plant abiotic stress. Blackwell Publishing Ltd, 9600 Garsington Road, Oxford OX4 2DQ, UK. 290 pp.
Monajem, S., V. Mohammadi, and A. Ahmadi. 2011. Evaluation of drought tolerance in some rapeseed cultivars based on stress evaluation indices. Elec. J. Crop. Prod. 4(1): 151-169.
Namvar V., A. H. Shirani Rad, and B. Delkhosh. 2015. Effect of irrigation regimes on yield components and oil quality of different cultivars of rapeseed (Brassica Napus L.). Indian J. Fund. Appl. Life Sci. 5: 4256-4269.
Nielsen, D. C. 1997. Water use and yield of canola under dryland conditions in the central great plains. J. Prod. Agric. 10 (2): 307-313.
Pasban Eslam, B. 2009. Evaluation of physiological indices, yield and its components as screening techniques for water deficit tolerance in oilseed rape cultivars. J. Agric. Sci. Tech. 11: 413-422.
Rezaizad, A., V. Mohammadi, A. Zali, H. Zinali, and M. Mardi 2011. Study of important agronomic traits and relationships among them under normal and drought stress conditionsin doubled haploid lines of oilseed rape. Iran. J. Field Crop Sci. 42(4): 683-694.
Richards, R. A. 1978. Variation between and within species of rapeseed (Brassica compestris and B. napus) in response to drought stress. Aust. J. Agric. Res. 29: 491-501.
Richards, R. A., and N. Thurling. 1978. Variation between and within species of rapeseed (Brassica compestris and B. napus) in response to drought stress. II. Growth and development under natural drought stress. Aust. J. Agric. Res. 29: 479-490.
SAS System for Windows, 1996. Release 8.02. SAS Institute Inc. Cary, USA.
Shirani Rad, A. H., A. Abbasian, and H. Aminpanah. 2013. Evaluation of rapeseed (Brassica Napua L.) cultivars for resistance against water deficit stress. Bulg. J. Agric. Sci. 19(2): 266-273.
Shirani Rad, A. H., A. Abbasian, and H. Aminpanah. 2014. Seed and oil yields of rapeseed (Brassica napus L.) cultivars under irrigated and non-irrigated conditions. J. Animal and Plant Sci. 24(1): 204-210.
Sinaki, J. M., E. Majidi Hervan, and A. H. Shirani Rad. 2007. The effects of water deficit during growth stages of canola (Brassica napus L.). American-Eurasian J. Agric. and Environ. Sci. 2(4):417-422. | ||
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