Abstract:

In order to understand the influences of different irrigation water on mature grape growth and yield in the extremely arid regions drip irrigation, the test was conducted to 5 irrigation treatment under the same irrigation frequency, observed the growth indicators of grape in the whole growth stage (new slightly length, new slightly stem diameter etc.) and yield. The results showed that: irrigation water had a significant influent on mature grape growth and yield in the extremely arid regions drip irrigation. The growth changes of grape new slightly length, new slightly stem diameter and clusters increased as irrigation water increase in a certain range. The growth rate of grape new slightly before and after topping was respectively the fastest. In irrigation water 810 mm (W5) and 742.5 mm (W4) treatment, the new slightly stem diameter in 810 mm (W5) treatment increased the fastest rate, clusters in 607.5 mm (W2) treatment reached the fastest growth rate. Under the experiment conditions, appropriate irrigation quota in the whole growth period was 722 mm when get higher yield and water production efficiency.