บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Ripening and postharvest shelf life of tomato genotypes with different genotypic constitutions in the alcobaca locus.

Freitas, J. A. de; Maluf, W. R.; Gomes, L. A. A.; Oliveira, A. C. B. de; Martins, V. da S.; Braga, R. de S.;

Revista Brasileira de Fisiologia Vegetal Year: 1998 Vol: 10 Issue: 3 Pages: 191-196 Ref: 13 ref.

1998

บทคัดย่อ

Ripening and postharvest shelf life of tomato genotypes with different genotypic constitutions in the alcobaca locus.

Tomato plants of lines TOM-559 alc/alc, Flora-Dade alc+/alc+ (near isogenic lines, with the exception of the alcobaca locus), BPX-336C#0502-bulk alc+/alc+, and of the hybrid F1 (BPX336B#0502xTOM-559)-alc+/alc were grown to compare their postharvest fruit ripening patterns. Fruits were harvested at the mature-green stage and stored in a chamber at 13.6 deg C and 60.3% RH. TOM-559 alc/alc fruits were firmer than those of Flora-Dade alc+/alc+, and took 5, 14, 22 and 25 days longer to reach the mature-green, pink, pale-red and red stages, respectively. F1 hybrid alc+/alc fruits took 2 days longer than normal alc+/alc+ fruits to reach mature-green stage, and 3 days more to reach the later stages. Hybrid alc+/alc fruits took 2 and 5 days longer, respectively, than Flora-Dade (firm fruited alc+/alc+) and BPX-336C#0502-bulk (soft fruited alc+/alc+) to reach the critical firmness level of 0.2x105 N/m2. There was little or no effect of the alc allele on either the height of the first truss, number of anth

eses per plant or mean fruit mass. It was concluded that alc+/alc hybrids are a commercially viable option to promote increased postharvest shelf-life of tomato fruit.