Lettuce Germplasm in Humid Subtropical Environments Tolerant to Postharvest Development of Pink Rib Disorder
نویسندگان
چکیده
Pink rib discoloration or pinking in the midribs of lettuce ( Lactuca sativa ) leaves is a stress-induced disorder that leads to crop loss worldwide. Maintaining recommended field and postharvest conditions reduces its incidence but does not eliminate issue. During past decade, research has identified tolerance this among types cultivars grown cooler climates. However, pink humid subtropical climates unknown; therefore, it necessary screen germplasm under these growing conditions. study, diverse accessions were planted for early-season, mid-season, late-season harvests over two seasons Belle Glade, FL, USA. Harvested wounded induce rib, stored 6 9 days at 5 °C >95% relative humidity, rated severity using 5-point subjective scale. Genotype × environment interactions evaluated understand environmental factors favor development during storage between planting seasons. increased storage, with highest increase observed after 3 4 both After least each leaf type identified. The lowest ratings “moderate” (rating 3) crisphead, Latin, romaine, “slight” 2) butterhead types, “none” 1) types. Additionally, late spring season harvest when temperatures higher daylight hours extended. low susceptibility promising breed lines future research.
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ژورنال
عنوان ژورنال: Journal of the American Society for Horticultural Science
سال: 2023
ISSN: ['0003-1062', '2327-9788']
DOI: https://doi.org/10.21273/jashs05295-23