Stem deposition ability in modern winter wheat varieties under different environmental conditions as a physiological marker of their productivity
Aim. The search of relationship between characteristics of the stem deposition ability in winter wheat modern varieties and grains productivity under different environmental conditions. Methods. Field, biochemical (soluble stem carbohydrates) methods and mathematical-statistical analysis. Results. The deposition ability of the stem - a difference of content and the total amount of the water-soluble carbohydrates in the stem of the main shoot and weight of its dry matter content in the phases of flowering and full maturity – for 5 varieties of winter wheat in the years significantly different in weather conditions during grain filling were investigated. It is shown that the difference in weight of stem dry matter at the flowering phase and full ripeness and the grain mass of ear significantly varied with different weather conditions during the grain filling, as well as different varieties. A correlation between the mass of a main shoot grain ear with these indices was analyzed. A close positive correlation (r=0.88±0.13) between the grain mass of ear and the difference in weight of stem dry matter at the flowering phase and full ripeness was found. Conclusions. A physiological marker associated with high productivity of ear in different environmental conditions, which is simple to measure and closely linked to weight of grain from an ear was proposed.
Keywords: Triticum aestivum L., stem deposited ability, water-soluble carbohydrates, grain productivity.
Porter J.R., Semenov M.A. Crop responses to climate variation. Phil. Trans. Soc. B. 2005. Vol. 360. P. 2021-2035. doi: 10.1098/rstb.2005.1752
Kiriziy D.A., Shadchyna T.M., Stasyk O.O. et al. Osoblyvosti fotosyntezu i produktsiynoho protsesu u vysokointensyvnykh henotypiv ozymoi pshenytsi. Kyiv, Osnova, 2011. 415 p.
Joudi M., Ahmadi A., Mohamadi V. et al. Comparison of fructan dynamics in two wheat cultivars with different capacities of accumulation and remobilization under drought stress. Physiol Plant. 2012. Vol. 144(1). P. 1-12. doi: 10.1111/j.1399-3054.2011.01517.x
Saint Pierre C., Trethowan R., Reynolds M. Stem solidness and its relationship to water-soluble carbohydrates: association with wheat yield under water deficit. Functional Plant Biology. 2010. Vol. 37. P. 166-174. doi: 10.1071/FP09174
Slewinski T. L. Non-structural carbohydrate partitioning in grass stems: a target to increase yield stability, stress tolerance, and biofuel production. J. Exp. Bot. 2012. Vol. 63. P. 4647-4670. doi: 10.1093/jxb/ers124
Buckeridge M.S., Hutcheon I.S., Reid J.S.G. The role of exo-(1-4)-beta-galactanase in the mobilization of polysaccharides from the cotyledon cell walls of Lupinus angustifolius following germination. Ann. Bot. 2005. Vol. 96(3). P. 435-444. doi: 10.1093/aob/mci192
Ruuska A.C., Rebetzke G. J., van Herwaarden A. F. et al. Genotypic variation in water-soluble carbohydrate accumulation in wheat. Functional Plant Biology. 2006. Vol. 33(). P. 799–809. doi: 10.1071/FP06062
Xue G.-P., McIntyre C. L., Jenkins C. L.D. et al. Molecular dissection of variation in carbohydrate metabolism related to water-soluble carbohydrate accumulation in stems of wheat. Plant Physiology. 2008. Vol. 146(9). P. 441–454. doi: 10.1104/pp.107.113076
Ehdaie B., Alloush G.A., Madore M.A., Waines J.G. Genotypic variation for stem reserves and mobilization in wheat: I. Postanthesis changes in internode dry matter. Crop. Sci. 2006. Vol. 46(2). P. 735-746. doi: 10.2135/cropsci2005.04-0033
Gubta A.K., Kaur K., Kaur N. Stem reserve mobilization and sink activity in wheat under drought conditions. American Journal of Plant science. 2011. Vol. 2. P. 70-77. doi: 10.4236/ajps.2011.21010
Ehdaie B., Alloush G.A., Waines J.G. Genotypic variation in linear rate of grain growth and contribution of stem reserves to grain yield in wheat. Field Crops Res. 2008. Vol. 106(1). P. 34-43. doi: 10.1016/j.fcr.2007.10.012
Piaskowski J.L., Brown D., Campbell K.G. Near-infrared calibration of soluble stem carbohydrates for predicting drought tolerance in spring wheat. Agronomy Journal. 2016. Vol. 108(1). P. 285-293. doi: 10.2134/agronj2015.0173
Ermakov A.I. Metody biokhimicheskogo issledovaniia rasteniy. Leningrad: Kolos, 1972. 456 p.
Selianinov G. T. Metodika selskokhoziaystvennoy kharakteristiki klimata. In: Mirovoy agroklimaticheskiy spravochnik. Leningrad: Gidrometeoizdat, 1937. P. 5-27.
Dospekhov B.A. Metodika polevogo opyta. Moskva: Kolos, 1973. 336 ps.
Esmaeilpour-Jahromi M., Ahmadi A., Lunn J.E. et al. Variation in grain weight among Iranian wheat cultivars: The importance of stem carbohydrate reserves in determining final grain weight under source limited conditions. Australian Journal of Crop Science. 2012. Vol. 6(11). P. 1508-1515.
Saeidi M., Moradi F., Jalali-Honarmand S. The effect of post anthesis source limitation treatments on wheat cultivars under water deficit. Australian Journal of Crop Science. 2012. Vol. 6(7). P. 1179-1187.