极端干旱区不同灌水量对滴灌葡萄生长及产量的影响

为了解极端干旱区滴灌条件下不同灌水量对成龄葡萄生长及产量的影响,通过在灌水次数一致条件下,设置5个灌水量梯度处理,观测各处理全生育期内滴灌葡萄的生长指标(新稍长度、新稍茎粗等)及产量。结果表明,极端干旱区滴灌灌水量对成龄葡萄生长和产量具有显著影响。葡萄的新稍长度、新稍茎粗和果穗的生长变化均在一定范围内随着灌水量增加而增加。葡萄的新稍打顶前后,分别在灌水量810mm(W5)和742.5mm(W4)处理下新稍生长速率最快,新稍茎粗在810mm(W5)处理下增加速率最快,果穗在607.5mm(W2)处理下生长速率最快。试验条件下,葡萄获得产量和水分生产效率均较高时的全生育期灌溉定额为722mm较为适宜。

The Influence of Different Irrigation Water on Grapes Growth and Yield Under Drip Irrigation in Extremely Arid Regions

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.