In:
Journal of the American Society for Horticultural Science, American Society for Horticultural Science, Vol. 97, No. 1 ( 1972-01), p. 97-101
Abstract:
When Euonymus alatus ‘Compactus’ was grown under intermittent water mist for 2-4 months in autumn, the development of red foliage color was inhibited and dormancy and leaf abscission were delayed even during 4 weeks of cold temp (5°C) after the mist. Leaf tissues of misted Euonymus had a lower content of anthocyanins, total sugars, soluble N, and K and a higher content of starch, protein N, phenylalanine ammonia lyase, flavonols, flavans, leucoanthocyanins, and total phenolic substances than did non-misted plants. Substances involved in anthocyanin synthesis such as sugars, K, flavonoid compounds, and growth inhibitors were leached from the Euonymus by the mist. When the leached substances were added back to leaf discs from the misted leaves, anthocyanin content was equal to or greater than in leaf discs from non-misted plants. These results explain why rainfall in autumn reduces the intensity of red foliage coloration in Euonymus and perhaps other ornamental plants by leaching of metabolites, thus delaying the onset of dormancy and leaf senescence and inhibiting anthocyanin synthesis.
Type of Medium:
Online Resource
ISSN:
0003-1062
,
2327-9788
DOI:
10.21273/JASHS.97.1.97
Language:
Unknown
Publisher:
American Society for Horticultural Science
Publication Date:
1972
detail.hit.zdb_id:
2040057-3
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