ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

'Shuswap' strawberry.

Daubeny, H. A.; Moore, P. P.; Sjulin, T. M.; Lawrence, F. J.; Barritt, B. H.;

HortScience Year: 1991 Vol: 26 Issue: 4 Pages: 433-435 Ref: 4 ref.

1991

บทคัดย่อ

Shuswap was selected in 1977 from a 1976 cross between Holiday and Washington State University selection 1651 which has the cultivars Olympus, Earlibelle and Hood in its pedigree. Plants are vigorous, spreading and produce abundant runners. Petioles are long and leaves are medium sized. Flowers are produced at or below the leaf canopy on semierect to erect peduncles. Fruit ripens 3-4 days later than Sumas. Fruits are large (13.3 g), globose conic, smooth and uniform with a distinctive white area around a reflexed calyx. The yellow achenes lie on the fruit surface or are slightly sunken. The fruit picks easily but the calyx is relatively difficult to remove, a desirable trait for fruit destined for the fresh market but not for the processing market. Fruit colour of Shuswap is similar to that of Benton and Sumas and is lighter than that of Hood and Totem. Together with a light interior these traits make it more suitable for the fresh market than for processing. A high level of fruit firmness was recorded. At Abbotsford in 1988 and 1989 soluble solids concentration of Shuswap was 6.5%, less than that of Totem (7.4%) or Sumas (7.2%). Acidity was similar to both of these cultivars. In 1987 Shuswap had higher yields (13.1 kg/6 m plot) than Hood (7.0) or Shuksan (7.3) and a similar yields to Totem (14.4). Shuswap rated 4 on a 1 (susceptible) to 5 (resistant) scale when tested for resistence to Tetranychus urticae. Shuswap showed less preharvest fruit rot (Botrytis cinerea) than Sumas and less postharvest fruit rot than Totem. Shuswap is well adapted for cultivation in the Pacific Northwest and has an extended shelf life compared with comparable cultivars.