Premium
Controlling plant growth via the gibberellin biosynthesis system – II. Biochemical and physiological alterations in apple seedlings
Author(s) -
Wang S. Y.,
Byun J. K.,
Steffens G. L.
Publication year - 1985
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1985.tb01898.x
Subject(s) - paclobutrazol , gibberellin , malus , gibberellic acid , chlorophyll , respiration , biology , botany , rosaceae , plant physiology , horticulture , chemistry , germination
Some physiological and biochemical changes in apple seedlings ( Malus domestica Borkh cv. ‘York Imperial’) caused by an inhibitor of gibberellin biosynthesis, paclobutrazol [(2RS, 3RS)‐1‐(4‐chlorophenyl)‐4,4‐dimethyl‐2‐(1,2,4‐triazol‐1‐yl) pentan‐3‐ol], were determined. Paclobutrazol shifted assimilate partitioning from leaves to roots, increased carbohydrates in all parts of apple seedlings, increased chlorophyll content on a leaf area basis, increased soluble protein in leaves, increased mineral element concentration in leaf tissue and increased root respiration. Foliar application of gibberellic acid (GA 3 ) counteracted the effects induced by paclobutrazol.