Evaluation Physiological Characteristics and Grain Yield Canola Cultivars under end Seasonal Drought Stress in Weather Condition of Ahvaz

Document Type : Research Article

Authors

1 Jahad Agricultural Organization of Khozestan

2 Ramin Agricultural and Natural Resources University

Abstract

To evaluate canola cultivars response to physiological characteristics and grain yield end seasonal drought stress in weather condition of Ahvaz, farm experiments were done at research farm of Khuzestan agriculture and natural resources center. During 2007-2008 and 2008-2009 crop years. Farm test comprised drought stress was done as split plot form with randomize complete block design with four replication, treatments consist of drought stress (main factor) including 50, 60 and 70 percent of water use content, which was applied from early heading stage until physiological maturity, and three spring canola cultivar including Shirali, Hayola 401 and R.G.S. were considered as sub plots. Measurements include biological yield, grain yield, harvesting index, number of pod per plant 1000 grain weight, number of grain in pod, plant height, and stem diameter, oil and protein percentage. Results showed that drought stress reduced significantly grain yield, biological yield, harvest index and the average of reduction of them during 2 years for per unit reduce moisture from 50% to 70% were 2, 1.35, and 0.81 percent, respectively. During two years, 1000 grain weight, number of pods per plant and number of grain per pod reduced 27, 36 and 20 percent, respectively. Terminal Drought stress reduced significantly plant height, stem diameter, stem number per plant and pod length, this reduced were 12, 46, 36 and 14 percent, respectively. Stem diameter, and stem number per plant reduced more than other characteristics. In this study oil grain decreased 12 % and protein grain increased 18.5% but oil and protein yield decreased 44.9% and 27.1% respectively..Finally, in weather condition of Khuzestan, terminal drought stress on February and March in which has simultaneous with early flowering stage and filling seed, significantly, reduced yield and compounded yield and affects on stem growth and qualities oil and protein negatively. Therefore, with irrigation management and selection resistance genotypes to drought stress, canola production could be increased.

Keywords


1- تاندون، اچ. ال. اس. 1381. روش های تجزیه خاک ها ، گیاهان ، آب ها و کود ها. ترجمه توللیٰ ح و الف. سمنانی: انتشارات دانشگاه شهید چمران.219صفحه.
2- حسن زاده، م.، ا. ح. شیرانی، م. درباغ شاهی، ب. م. نصیری و ح. مدنی. 1384. بررسی اثر تنش خشکی بر عملکرد و اجزای عملکرد ‎ارقام پرمحصول کلزای پاییزه. مجله علوم کشاورزی 2: 24-.17.
3- وفابخش، ج.، م. نصیری محلاتی، ع. کوچکی و م. عزیزی. 1388. اثرتنش خشکی بر کارایی مصرف آب و عملکرد ارقام کلزا. پژوهش های زراعی ایران. 7: 295-302.
4- صفائی چائی کار، ص.، ب. ربیعی، ح. سمیع زاده و م. اصفهانی. 1386. ارزیابی تحمل ژنوتیپ های برنج (Oryza sativa L.) به تنش خشکی انتهای فصل. علوم زراعی ایران. 9 (4): 331-315.
5- Ahmadi, M. and M. J. Bahrani. 2009 .Yield and yield components of rapeseed as influenced by water stress at different growth stages and nitrogen levels . American-Eurasian Journal. Agriculture. & Environment. Science. 5 (6): 755-761.
6- Anyia, A. O. and H. Herzog. 2004. Water-use efficiency, leaf area and leaf gas exchange of cowpeas under mid-season drought. European Journal of Agronomy, Amsterdam, 20( 4):327-339.
7- Bray, E. A., J. Bailey-Serres, and E. Weretilnyk. 2000. Responses to abiotic stresses, In,american society of plant biologists, Rockville, MD, pp. 124 -158.
8- Buttar, G. S., H. S. Thind and M. S. Aujla. 2006. Methods of planting and irrigation at various level nitrogen affect the seed yield and water use efficiency in transplanted oil seed rape (Brassica napus L.). Agriculture. Water Management. 85: 253-260.
9- Champolivier, L., and A. Merrin. 1996. Effects of water. stress applied at different growth stages to Brassica napus L. var. oleifera on yield, yield components and, seed quality. European Journal of Agronomy 5: 153-160.
10- Chen, C., G. Jackson, K. Neill, D. Wichman, G. Johnson, and D. Johnson. 2005. Determining the feasibility of early seeding canola in the northern great plains. Agronomy. Journal. 97:1252–1262.
11- Diepenbrock, W. 2000. Yield analysis of winter oilseed rape (Brassica napus L.). A review. Field Crops Research., 67: 35-49.
12- Gunasekara, C. P., L. D. Martin, R. J. French, K. H. M. Siddique, and G. H. Walton. 2003. Effects of water stress on water relations and yield of Indian mustard (Brassica juncea L.) and canola (Brassica napus L.) 11th Australian Agronomy Conference, Geelong. Australia
13- Kazi, B. R., F. C. Oad, G. H. Jamro, L. A. Jamil and A. A. Lakho. 2002. Correlation study between irrigation frequencies and brassica plant character. Journal of Applied Sciences. 6: 625-627.
14- Mendham, N. J. and P. A. Salisbury. 1995. Physiology, crop development, growth and yield. In: Kimber, D.S.and D.I. McGregor. (Ed.). Brassica Oilseeds: Production and utilization. CAB International. London. pp: 11-64.
15- Mailer, S., and G. M. Cornish. 1987. Effects of water stress on glicosinolate and oil contents in the rage rape (Brassica napus L.) and turnip rape (B. rapa L.) Aust. Journal. Exp. Agriculture, 27: 707- 711.
16- Mittler, R. 2006. Abiotic stress, the field environment and stress combination. Plant Science 11(1):9-15.
17- Mostajeran, A. and V. Rahimi-Eichi. 2008. Drought stress effects on root anatomical characteristics of rice cultivars (Oryza sativa L.) Pakistan Journal of Science, 11(18): 2173-2183.
18- Nielsen, D. C. 1996. Potential of canola as a dryland crop in northeastern Colorado. ASHS Press, Alexandria,. p. 281-287.
19- Noori, S. A., H. Khalaj, A. H. Rad, I. Alahdadi, G. A. Akbari and M. R. Abadi. 2007. Investigation of seed vigor and germination of canola cultivars under less irrigation in padding stage and after it. Pakestan Journal Biology Science .10(17):2880-2884.
20- Qaderi, M. M., M. Kurepin, V. Leonid and R. David. 2006. Growth and physiological responses of canola (Brassica napus) to three components of global climate change: temperature, carbon dioxide and Drought. physiologia plantarum 4: 710-721.
21- Roa, M. S, and N. J. Mandham. 1991. Soil plant-water relations of oilseed rape (B.napus, B.compestris), Journal. Agriculture. Science.combridge.117:197-205.
22- Sangtarash, M. H., M. M. Qaderi, C. C. Chinnappa and D. M. Reid. 2009. Differential sensitivity of canola (Brassica napus) seedlings to ultraviolet-B radiation, water stress and abscisic acid .envirmental and expriemental 2 :212-219.
23- Sharief, A. E. and M. M. Keshta. 2006. Influence of sowing date and plant density on growth and yield of canola (Brassica napus, L) under salt affected soils in Egypts. Scientific Journal of King Faisal University (Basic and Applied Sciences) 3(1):65-78
24- Taylor, A. J. and C. J. Smith. 1992. Effect of sowing date and seeding rate on yield and yield components of irrigation canola growth on a red-brown earth in South Eastern Australia, Aust. Journal. Agriculture. Reserach., 7: 1629-164.
25- Thomas, H. 1990. Osmotic adjustment in Lolium perenne L .its heritability and the nature of solute accumulation. Annals of Botany. 46:581-587.
26- Tohidi-M, H. R., A. H. Shirani-Rad, G. Nour-Mohammadi, D. Habibi, S. A. M. Modarres-anavy, M. Mashhadi-Akbar-Boojar, A. Dolatabadian. 2009. Response of six oil seed rape genotype to water stress and hydrogical application. L Pesq. Agropec. Trop., Goiânia. 3: 243-250.
27- Walton, G., N. Mendham, M. Robertson and T. Potter. 2006. Phenology, physiology and agronomy journal of Agronomy 5(1)1-4.
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