บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

The possibility of applying regulated deficit irrigation to peach orchards in the Emilia-Romagna region.

Mannini, P. and Zinoni, F.

Acta Horticulturae Year: 1993 Issue: No. 335 Pages: 569-574 Ref: 6 ref.

1993

บทคัดย่อ

The possibility of applying regulated deficit irrigation to peach orchards in the Emilia-Romagna region.

Regulated deficit irrigation (RDI) is a technique which permits the control of peach tree growth and fruiting in arid environments with considerable water saving and without any adverse effects on fruit size and yield. The RDI technique was simulated on the basis of daily climatic data covering a period of 30 years for the subhumid Emilia-Romagna region of Italy. The daily water balance was calculated for 3 peach-growing areas (Ferrara, Faenza and Cesena) and for 3 cultivars maturing at different times and grown in different soil types. Findings showed that modifying plant growth by limiting water availability in early-season cultivars was possible only at the postharvest stage, while in late-season cultivars the effect was greater during the rapid-fruit-growth stage and less pronounced during the postharvest stage. Medium-season cultivars were found to be affected by RDI in both pre- and postharvest stages; this however only occurred in a limited number of years and especially in coarse and grass-covered soils. Water saving was potentially high under all conditions.