Effect of Hydrogen Cyanamide on Amino Acid Profiles in Kiwifruit Buds during Budbreak

Buds, and resultant shoots, were collected from kiwifruit (Actinidia deliciosa [A. Chev.] CF Liang et AR Ferguson var deliciosa cv Hayward) vines from late autumn until late spring with and without hydrogen cyanamide treatment. Those samples were weighed and analyzed for total nitrogen and free amin...

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Bibliographic Details
Published in:Plant physiology (Bethesda) 1991-11, Vol.97 (3), p.1256-1259
Main Authors: WALTON, E. F, CLARK, C. J, BOLDINGH, H. L
Format: Article
Language:English
Subjects:
Agricultural management
Agriculture
Agronomy. Soil science and plant productions
Amino acids
Biological and medical sciences
Budbreak
Communications
Development and Growth Regulation
Dormancy
Flower buds
Flowering
Fundamental and applied biological sciences. Psychology
Germination and dormancy
Hydrogen
Nitrogen
Plant physiology and development
Plants
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Summary:Buds, and resultant shoots, were collected from kiwifruit (Actinidia deliciosa [A. Chev.] CF Liang et AR Ferguson var deliciosa cv Hayward) vines from late autumn until late spring with and without hydrogen cyanamide treatment. Those samples were weighed and analyzed for total nitrogen and free amino acids. By 7 days after hydrogen cyanamide treatment, the amount of proline had risen to nearly one-quarter of the total amino acid pool in the treated buds and that proportion was maintained for at least 14 days before it declined. The maximum concentration detected in treated buds was 25.8 micromoles per gram dry weight, 6.6 times that detected in untreated buds. By 95 days after treatment, the relative amounts of proline were not significantly different.
ISSN:0032-0889
1532-2548
DOI:10.1104/pp.97.3.1256