บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

CPPU and GA3 effects on pre- and post-harvest quality of seedless and seeded grapes.

Ben-Arie, R.; Sarig, P.; Cohen-Ahdut, Y.; Zutkhi, Y.; Sonego, L.; Kapulonov, T.; Lisker, N.;

Acta Horticulturae Year: 1998 Issue: No. 463 Pages: 349-355 Ref: 10 ref.

1998

บทคัดย่อ

CPPU and GA3 effects on pre- and post-harvest quality of seedless and seeded grapes.

The effects of GA3 and CPPU [forchlorfenuron] on pre- and postharvest quality of the seedless (cultivars Perlette, Superior and Thompson Seedless) and seeded (cultivar Zeiny) grapes were compared in a series of experiments conducted in Israel. Clusters were treated with GA3 (25 ppm) and CPPU (5-20 ppm), as sprays or dips, applied alone or in combination. Fruits were harvested 7-14 weeks later, packed in cartons and stored at 0 deg C for 3-5 weeks, and keeping quality assessed after 3 days at 20 deg . Both GA and CPPU increased berry size and delayed ripening. There were differences between the physiological effects of each growth regulator. GA3 increased rachis desiccation, berry shatter and disease susceptibility (shown by inoculation with Rhizopus stolonifer), whereas CPPU had the opposite effect. Some differences were observed between the seedless cultivars. When a combination of the 2 growth regulators was used there was no added effect on berry size, firmness or ripening but the resistance

to decay conferred by CPPU was eliminated by GA3.