Abstract: To study the effect of irrigation on yield and yield components of cotton, an experiment was conducted in the form of randomized complete block design with 3 replications in the Delgosha research field of Ferdows. During this experiment, the effects of four water treatments - including brine water with the salinity of EC=6.8 ds/m, tap water EC=0.7ds /m, magnetic salt water and saline water in a land where Potassium-based super-absorbent was added – on the yield and yield components of cotton was evaluated. Finally, the results were analyzed with the SAS software according to Duncan's multiple range tests.During this experiment, it was determined that these four irrigation water quality had a significant effect on the yield and yield components of cotton, cotton fiber production, fiber weight and the weight of a thousand cottonseeds, biological yield per hectare, the shading surface, boll number per plant and boll number per hectare. However, it had a negative effect on the cotton fiber harvest per hectare index and the grain harvest per hectare. Also, correlation coefficients analysis indicated a negative correlation between the last two factors and other measured factors. Stem diameter and the number offside branches also showed significant differences between treatments. Furthermore, despite observing the 12-day watering circuit, the total volume of water in the super absorbent treatment and magnetic water treatment were half and three fourth the other two treatments, respectively. Overall, it can concluded that using modifications such as magnetizing the water or using super absorbent polymers, we can decrease adverse effects caused by saline and low quality water on cotton and achieve the possibility of using saline water in dry areas while maintaining the desired performance besides increasing the cultivation area.
کلید واژگان :cotton, saline water, super absorbent, magnetic water, yield and yield components
ارزش ریالی : 500000 ریال
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