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Distribution of 14 C‐sucrose applied to leaves at different nodes of okra (Abelmoschus esculentum) during flowering and early pod growth
Author(s) -
RAO N. K. SRINIVASA,
BHATT R. M.
Publication year - 1989
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1989.tb06573.x
Subject(s) - biology , point of delivery , sucrose , botany , plant stem , vegetative reproduction , main stem , fructification , horticulture , biochemistry
Summary The distribution pattern of 14 C‐sucrose from 14 C‐sucrose applied to vegetative okra plants and leaves 1–9 on separate plants during the green pod development stage were investigated in relation to duration and leaf position. Results indicated bi‐directional transport of assimilates to both apical and basal portions of the stem. Within 48 h 14 C moved to all plant parts; stem and leaves appeared to be strong sinks. In plants fed at the vegetative stage, 48 h after feeding, 66% of the fed activity was exported from the fed leaf. At the pod development stage, about 35% of the activity exported from the fed leaf was present in green pods and 65% in vegetative parts. In plants where leaf 1–9 was fed, irrespective of the position of the fed leaf, the subtending fruit was the strongest sink among the reproductive parts. Leaves and stems were the principal sinks.