Evaluation of seed size and NaCl stress on germination and early seedling growth of sunflower (Helianthus annuus L.)
Paper Details
Evaluation of seed size and NaCl stress on germination and early seedling growth of sunflower (Helianthus annuus L.)
Abstract
Sunflower is well adapted plant to tolerate moderately saline soil conditions. In order to investigate this circumstance, an experiment was conducted as a factorial with three factors arranged in completely randomized design with 4 replications and 50 seeds per replicate. Three cultivars (Azrgol, Eurofler and Record) made first factor, the second was made of seed size (small and large) and different NaCl solution levels (0.0, 10 and 15 ds.m-1) made the third one. Germination percentage (%), mean germination time (day), root and shoot length (cm) and seedling dry weight (g) were investigated. In general, small size seeds germinated rapidly compared to large size ones of the same cultivars under salt stress. Also, NaCl caused lower root and shoot length but higher mean germination time. Interaction between seed size × cultivar × NaCl levels had different response to germination percentage. Small size seeds of Azargol and Record showed the highest germination percentage values at all NaCl concentration, while the maximum germination percentage was obtained in large size seeds of Eurofler cultivar under all levels of salt stresses. In conclusion, small size seeds can also be used for sunflower production in saline soils to achieve better stand establishment.
Ellis RH, Roberts EH. 1980. Towards a Rational Basis for Testing Seed Quality. In.: Hebblethwait, P.D(Ed.), Seed Production. Butterworths, London 605-635.
Farhoudi R, Motamedi M. 2010. Effect of salt stress and seed size on germination and early seedling growth of safflower (Carthamus tinctorus L.). Seed Science and Technology 38, 73-78.
Francois LE. 1996. Salinity Effects on Four Sunflower Hybrids. Agronomy Journal 88(2), 215-219.
ISTA. 2003. International Seed Testing Association. ISTA Handbook on Seedling Evaluation, 3rd edition.
Kahan A. 1960. An analysis “dark osmotic inhibition” of germination of lettuce seeds. Plant Physiology 35(1), 1-7.
Karadogan T, Carki K, Ozer H. 1998. An investigation on differences in the quality of sunflower seeds in relation to their position in the head. Helia 21, 121-129.
Kaya MD, Day S. 2012. Relationship between seed size and NaCl on germination, Seed vigor and early seedling growth of sunflower (Helianthus annuus L.). Journal of AgriculturalResearch and Fisheries 1(1), 1-5.
Kaya MD, Okcu G, Atak M, ÇIkiIi Y, Kolsarici O. 2006. Seed treatments to overcome to salt and drought stress during germination in sunflower .European Journal of Agronomy 24, 291-295.
Kaya M, Kaya G, Kaya MD, Atak M, Saglam S, Khawar KM, Ciftci CY. 2008. Interaction between seed size and NaCl on germination and early seedling growth of some Turkish cultivars of chickpea (Cicer areietinum L.). Journal of Zhejiang University Science 9(5), 371-377.
Munish SH, Kaushal B, Baja RK. 2003. Compositional changes in seeds influenced by their positions in different whorls of mature sunflower head. Journal of the Science of Food and Agriculture 83, 1622-1626.
Nieman RH. 1965. Expansion of bean leaves and its suppression by salinity. Plant Physioogy 40(1), 156-161.
Robinson RG. 1978. Production and Culture. In: Sunflower Science and Technology. (Ed. JF. Carter). Wisconsim, USA, 89-132.
Sadeghi H, Khazaaei F, Sheidaei S, Yari L. 2011. Effect of seed size on germination behavior of safflower (Carthamus tinctorius L.). ARPN Journal of Agricultural and Biological Science 6(4), 5-8.
Saranga Y, Levi A, Horcicka P, Wolf S. 1998. Large sunflower seeds are characterized by low embryo vigor. Journal of the American Society for Horticutural Science 123(3), 470-474.
SAS Institute Inc. 2002. The SAS system of windows, Release 9.0, Statistical Analysis system Institute, Cary, NC, USA.
Shannon MC. 1997. Adaptation of Plants to Salinity. Advances Volume p. 75–120.
Smithson JB, Thompson JA, Summerfield RJ. 1985. Chickpea (Cicer arietinum L.) In: Summerfield RJ, Roberts SH(Eds.) Grain Legume Crops. Collins, p. 312-390.
Yasseen BT, Jurjee JA, Sofaly SA. 1987. Changes in some growth processes induced by NaCl in individual leaves of two barley cultivars. Indian Journal of Plant Physiology 30(1), 1-6.
Yari L, Aghaalikani M, Khazaei F. 2010. Effect of seed priming duration and temperature on seed germination behavior of brea wheat (Triticum aestivum L.). ARPN Journal of Agricultural and Biological Science 5(1), 1-6.
Leila Yari, Faezeh Daryaei, Hossein Sadeghi, 2015. Evaluation of seed size and NaCl stress on germination and early seedling growth of sunflower (Helianthus annuus L.). Int. J. Agron. Agric. Res., 7(3), 60-65.
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