Black Sea Journal of Agriculture

Yazarlar: Danaya YERKİN, Temizel KADİR ERSİN

Konular:Mühendislik, Ziraat

Anahtar Kelimeler:Bean,Irrigation,Sodium absorbsion rate,Leaf area model

Özet: This study was carried out to determine the effects of sodic water applications at different levels on the leaf area of bean plants in the experimental area of Ondokuz Mayıs University Agricultural Faculty. Besides, it is aimed to estimate the leaf area by the width and length measurements obtained from the leaf. The study was carried out in July-August-September period with a top plastic covered greenhouse. For this purpose, four different sodium level irrigation water applications were chosen as subjects, ranging from S0 (SAR = 0), S15 (SAR = 15), S30 (SAR = 30) and S40 (SAR = 40). CaCl2, MgSO4, and NaCl salts were used for the preparation of irrigation waters having different sodium levels in the study. WebplotDigitizer computer program was used for leaf area measurements. Using the obtained equations, leaf areas can be determined easily and without damage to the plant. Equations have been determined for S0, S15, S30 and S40 respectively as YA=-22.066+2.782*x+5.221*y, YA=-2.138+2.318*x+6.091*y, YA=-25.062+2.057*x+6.968*y ve YA=-13.151+1.474*x+5.156*y. In equations x and y shows leaf length (cm) and leaf width (cm) respectively. Multiple regression is used in finding equations. It was found that the results of the equations were significant at the level of p <0.001. It is clear that leaf areas are well predicted by equations.

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