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Effects of fluorides on metabolism and visible injury in cut-flower crops and citrus

Conference · · Fluoride; (United States)
OSTI ID:5262677
Fluoride taken up by gladiolus roots caused foliar damage only when soil pH was low and F/sup -/ containing superphosphate was applied in relatively excessive amounts. This damage to leaves occurred more to leaf interior than to margins and tips as in F/sup -/ fumigation. Fluoride in leaves was found to move passively with the transpirational stream of water and accumulated at the terminus of translocation. Rose and gladiolus cut-flowers were damaged by low concentrations of F/sup -/ in vase water whereas the chrysanthemum was less affected. De novo chlorophyll synthesis in Vigna sinensis seedling leaves was inhibited by F/sup -/ absorbed by detached seedling tops. Yield of Valencia orange fruit was depressed by air-borne F/sup -/. Valencia leaves (a) were reduced in size, (b) had decreased photosynthetic rates and (c) had decreased chlorophyll content in response to increasing levels of airborne F/sup -/. 11 references, 6 tables.
Research Organization:
Univ. of Florida, Bradenton
OSTI ID:
5262677
Report Number(s):
CONF-700359-
Conference Information:
Journal Name: Fluoride; (United States) Journal Volume: 4:1
Country of Publication:
United States
Language:
English