The Contribution of Yield Components to the Achievement of Production in some Winter Wheat Genotypes

Abstract

The grain yield is the result of a complex interaction of many factors, which can be more or less influenced by environmental conditions. Number of grain per spike, weight of grain per spike and thousand kernel weight are the main components of the yield. The reaction of these components to variations of climatic conditions or other inputs can be different, according to genotypes. In our research the climatic conditions have determined a large variation of this components, especially caused by favorable and unfavorable conditions. The greatest contribution on grain yield was manifested by weight of grain per spike (correlation coefficient 0.62 in 2012, and 0.70 in 2013 at basic fertilization; 0,76 in the second experimental year and 0.62 in third year at additional fertilization), followed by number of grain per spike (correlation coefficient: 0.45 in 2012 and 0.53 in 2013 at basic fertilization, and 0,49 in second experimental year at additional fertilization).

The Spike Characteristics of Winter Wheat (Triticum aestivum L.) Varieties in Agro–Ecological Conditions of Banja Luka Region

“…This is in accordance with some studies (Knežević et al, 2012;Guberac et al, 2000), whereas the effect of different years was also statistically significant. Similar results are confirmed by other authors (Shankarrao et al, 2010;Tahmasebi, 2013;Racz et al 2015).…”

Effect of main agronomy factors on the productivity and physical characteristics of common winter wheat (Triticum aestivum L.) grown under conventional and transitional-organic production

“…Considering their combined interactions under CP, wheat yield was affected most by the combinations year x previous crop (9.88%), fertilization х previous crop (4.62%) and year х fertilization х previous crop (4.31%).The influence of the previous crop in combination with the meteorological conditions of the year was even better expressed under organic production -16.46 %. These results are a confirmation that mineral fertilization is one of the most powerful tested agronomy factors, which determine the size of yield (Freeman et al, 2007;Nankova et al, 2012;Racz et al, 2015;Аtanasov et al, 2019;Tsvey et al, 2021;Singh et al, 2021).…”

Wheat Grain Size and Dimensions in Contrasting Environments of Eastern and Western Europe

“…TGW is considered to be less influenced by environment than the other yield components, such as number of spikes per unit area or grain number per spike (Racz et al, 2015), but is nevertheless very much dependent on temperatures during grain filling (Sofield et al, 1977;Wiegand and Cuellar, 1981;Zahedi and Jenner, 2003). However, few reports that studied the effect of environment on TGW, also studied the environmental influence on the grain dimensions that determine TGW.…”