Survey of Yield and Yield Components of Sunflower Cultivars Under Drought Stress

Document Type: Original Article

Authors

1 Student of MS in Agriculture, University of Azad Islamic Esfahan, Iran

2 Associate Prof Faculty of Agriculture, University of Azad Islamic Esfahan,

3 Associate Prof Faculty of Agriculture, University of Azad Islamic Esfahan, Iran

4 Faculty of Agriculture Research Center of Esfahan, Iran

Abstract

The experiment was investigated to survey of yield and yield components of sunflower cultivars under drought stress in 2012 in Kabootatabad of Esfahan farm. An experiment was conducted in split plot and was designed in randomized complete block with three replications. Irrigation was as main plots in 3 levels (control (normal irrigation), irrigation of 130 mm evaporation from pan evaporation, irrigation of 180 mm evaporation from pan evaporation) and cultivars as subplots was at 5 levels (Zaria, Hysun 36, Favorit, Lakumka and Master). The results showed that the effect of irrigation regime on biological yield, grain yield and harvest index were significant, so that the maximum and minimum values of these traits were observed in the control and irrigation treatment after 180 mm evaporation from pan respectively. Significant effect were observed amount cultivars in biological yield and oil percentage, so in two traits that the highest biological yield and oil percentage obtained in Favorit cultivar and the lowest was obtained in Zaria cultivar. Also the interaction between stress × cultivar was significant on the grain yield trait and oil percentage, and Hysun 36 cultivar at an irrigation level of 180 and 130 mm evaporation from pan had the highest and lowest yield, respectively. Also Master cultivar had highest seed oil percentage with control and Master cultivar had lowest seed oil percentage of irrigation level of 180 mm evaporation of pan, also a Master cultivar at control showed the highest amount of oil present and Master treatment showed the least amount of seed oil at an irrigation level of 180 mm evaporation from pan least

Keywords

Main Subjects


Ahmadi A, zali A (2004). Compare of the storage and remobilization of photosynthesis materials and their contribution to the performance of four cultivar wheat in optimum and drought stress. Journal of Agricultural Sciences. 35 (4), 931-921.
Chimenti CA, Pearson J, Hall AJ (2002). Osmotic adjustment and yield maintenance under drought in sunflower. Field Crops Res. 75, 235-246.
Cox WJ, Jolliff GD (1986). Growth and yield of sunflower and soybean under soil water deficits. Agron. J. 78, 226-230.
Fereres E, Gimez C, Fernandez M (1986). Genetic variability in sunflower cultivars under drought yield relationships. Aust. J. Agric. Res. 37, 573-582.
Flenet F, Boundiols A, Suraiva C (1996). Sunflower response to a range of soil water contents. European Journal of Agronomy. 15, 161-167.
Holt NW, Campbell SJ (1984). Effect of plants density on the agronomic performance of sunflower on dryland. Can. J. Plant loci. 64, 599-605.
Human JJ, Du Toit D, Bezuidenhout HD, Bruin LP (1990). The influence of plant water stress on net photosynthesis and yield of sunflower. Crop Sci. 164, 231-241.
Khajehpour MR (2009). Industrial production plants. Publications Jihad IUT.
Mazaheri laghab HF, Noori Zare Abyaneh H, Vafaie HM (2001). Effects Supplemental irrigation on traits of three cultivars of sunflower in dry farming. Journal of Agricultural Research, Third Year, Volume III, Number 1, 44-31.
Merill SD, Rawlins SK (1979). Distribution and growth of sorghum roots in response to irrigation frequency. Agron. J. 71, 738-745.
Mozaffari K, Arshi A, Zeinali Khnagah VH (1996). Effects of Drought on some traits of morpho Physiology and yield components of sunflower seeds, Seed and Plant Journal, Volume 12, Number 3, pp. 24.
Pankovic DZ, Sakac SK, Cvrosan R, Plesnicar M (1999). Acclimation to longterm water deficit in the leaves of two sunflower hybrids. Photosynthesis, electron transport and carbon metabolism. Journal of Experimental Botany. 50, 127 –138.
Toole JC, Moya TB (1981). Water deficits and yield in upland rice. Field Crops Res. 4, 247-259.
Yegappan TMD, Paton M, Gates CT, Muller WJ (1982). Water stress in sunflower. Annuals Bot. 49,63-68.
Zaffaroni EJ, Schneiter AA (1989). Water use-efficiency and light interception of semi-dwarf and standard height sunflower hybrids grown In different row arrangements. Agron. J. 81, 831-836.