Correlation between photosynthetic traits and yield in sunflower
P. Pepó, A. Novákhttps://doi.org/10.17221/202/2016-PSECitation:Pepó P., Novák A. (2016): Correlation between photosynthetic traits and yield in sunflower . Plant Soil Environ., 62: 335-340.
The impact of sowing dates (early, normal and late) on the crop physiological parameters (leaf area index (LAI), chlorophyll content (SPAD)) and yield of sunflower cultivars (NK Neoma, NK Ferti, PR64H42) was observed in 2012, 2013, and 2014 on chernozem soil in Eastern Hungary. The obtained LAImax values were 5.1–5.3 m2/m2 (early sowing date), 4.5–5.2 m2/m2 (normal sowing date) and 4.4–5.2 m2/m2 (late sowing date). Pearson’s correlation analysis revealed a close negative correlation between LAImax and sowing date in 2013 and 2014 (r = –0.920**,r = –0.813**) and an average, non-significant correlation between LAImax and sunflower yield (r = 0.575ns, r = 0.509ns). The relative chlorophyll content was not significantly affected by either growing year, sowing date or genotype in the period between May and July (~40). In the case of high infection index (Ii) values (2012), sunflower cultivars had the highest yield in the late sowing date (4.3–5.3 t/ha). However, average Ii values (2013) were associated with the highest yields in normal sowing date (5.1–5.3 t/ha) and moderate Ii values (2014) showed the highest yields in early sowing dates (4.6–5.1 t/ha).Keywords:
Helianthus annuus L.; oil crop; pathogens; weather conditions; agrotechnical elements
Baghdadi A., Halim R.A., Nasiri A., Ahmad I., Aslani F. (2014): Influence of plant spacing and sowing time on yield of sunflower (Helianthus annuus L.). Food, Agriculture and Environment, 12: 688–691.Balalic I., Crnobarac J., Dusanic N. (2007): Planting date effects on oil yield in sunflower (Helianthus annuus L.). Helia, 30, 153-157 https://doi.org/10.2298/HEL0747153BDebaeke P., Dejoux J.F., Demarez V., Mas O., Champolivier L. (2014): Assessment of leaf area index in sunflower crop using non-destructive methods. In: Proceedings of the 13th ESA Congress. 25-29th August 2014. Debrecen, 435-436.. Tolga Erdem, . Lokman Del ba, . A.Halim Orta (2001): Water – Use Characteristics of Sunflower (Helianthus annuus L.) Under Deficit Irrigation. Pakistan Journal of Biological Sciences, 4, 766-769 https://doi.org/10.3923/pjbs.2001.766.769Hall A.J., Chimenti C.A., Vilella F., Freier G. (1985): Timing of water stress effects on yield components in sunflower. In: Proceedings of the 11th International Sunflower Conference, 10–13 March 1985. ASAGIR/ISA, Mar del Plata, 131–136.Lawal B.A., Obigbesan G.O., Akanbi W.B., Kolawole G.O. (2011): Effect of planting time on sunflower (Helianthus annuus L.) productivity in Ibadan, Nigeria. African Journal of Agricultural Research, 6: 3049–3054.Cui L.J., Xin H.J., Liang G.Z., Wang D.X. (2000): Relationship between hybrid productivity and main physiological index under summer cropping sunflower. In: Proceedings of the 15th International Sunflower Conference, Toulouse, 144–149.Mijić A., Liović I., Kovačević V., Pepó P. (2012): Impact of weather conditions on variability in sunflower yield over years in eastern parts of Croatia and Hungary. Acta Agronomica Hungarica, 60, 397-405 https://doi.org/10.1556/AAgr.60.2012.4.10Miller B. C., Oplinger E. S., Rand R., Peters J., Weis G. (1984): Effect of Planting Date and Plant Population on Sunflower Performance1. Agronomy Journal, 76, 511- https://doi.org/10.2134/agronj1984.00021962007600040002xMogle T.R., Gadhave R.N., Suryawanshi A.P., Dhoke P.K., Pensalwar S.N. (2006): Influence of sowing dates on incidence of Alternaria blight of sunflower. Journal of Plant Disease Sciences, 1: 240–241.Nezamia A., Rezazadehb Z.B., Hosseini A. (2008): Effects of drought stress and defoliation on sunflower (Helianthus annuus) in controlled conditions. Desert, 12: 99–104.Pepó Péter, Novák Adrienn (2014): The effect of genotype and cropyear on the yield and the phytopathological traits of sunflower (Helianthus annus L.). Columella : Journal of Agricultural and Environmental Sciences, 2, - https://doi.org/10.18380/SZIE.COLUM.2014.1.2.101Pepó P., Vad A. (2011): The role of genotype and fertilization in sunflower production. Analele Universităţii din Oradea, Fascicula Protecţia Mediului, 17: 129–136.Rawson H. M., Turner N. C. (1983): Irrigation timing and relationships between leaf area and yield in sunflower. Irrigation Science, 4, 167-175 https://doi.org/10.1007/BF00285523Simic B., Cosic J., Popovic R., Vrandecic K. (2008): Influence of climate conditions on grain yield and appearance of white rot (Sclerotinia sclerotiorum) in field experiments with sunflower hybrids. Cereal Research Communications, 36: 63–66.Sin G.H., Ionita S., Popa M., Petcu G.H. (1996): Research results on the effects of soil tillage techniques, sowing date and plant density on sunflower production. In: Proceedings of the 14th International Sunflower Conference, Beijing, 351–356.Szabó András, Pepó Péter (2005): Effect of agrotechnical and meteorological factors on yield formation in sunflower production. Cereal Research Communications, 33, 49-52 https://doi.org/10.1556/CRC.33.2005.1.11Thavaprakash N., Senthilkumar G., Sivakumar S. D., Raju M. (2003): Photosynthetic attributes and seed yield of sunflower ( Helianthus annuus L.) as influenced by different levels and ratios of nitrogen and phosphorus fertilizers. Acta Agronomica Hungarica, 51, 149-155 https://doi.org/10.1556/AAgr.51.2003.2.2