Özet:

This study was conducted with the aim of determining the effects of the different amount of irrigation and sulfur doses on the leaf chlorophyll content, efficiency and efficiency elements in soya beans. For this purpose, in semi-controlled greenhouse conditions, the seed work was carried out in 2017 and 2018 using three different soya beans (Cinsoy, Arısoy and Hope-2002), calculated according to the field capacity determined by the gravimetric method and applied 30 days after October with the conditions of complete irrigation (75% and 100% field capacity) and limited irrigation (25% and 50% field capacity) using two different sulfur doses (0 and 5 kg/day). In the study, SPAD chlorophyll measurements were performed in the periods of plant length, first baker height, plant baker number, a thousand weight, single plant yield, baker bonding (BBCH 75) and one filling (BBCH 85) in the periods of SPAD chlorophyll measurements. As a result, the level of all the parameters studied in the irrigation conditions was statistically significant (p<0.01) effect. The highest plant productivity (18.6 g/plant) in 2018 was achieved with the Cinsoy variety in 100% field capacity and 5 kg/sugar dose, while the lowest productivity (3.1 g/plant) in 2017 was in 25% field capacity and 5 kg/sugar dose in the Hope-2002 variety. The content of SPAD chlorophyll has been found to increase significantly depending on the amount of irrigation, while in the periods of bonding and one filling, it has changed depending on the varieties.

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