Articles
ENDOGENOUS GROWTH PROMOTER AND INHIBITOR LEVELS IN PLEIONE FORMOSANA CORMS
Article number
205_33
Pages
225 – 232
Language
Abstract
Endogenous hormones of the corms of Pleione formosana Hayata were analyzed with HPLC at various stages of growth and development.
The content of abscisic acid (ABA) decreased with corm growth, but increased rapidly during leaf abscission and at harvest.
It decreased again during a natural chilling period.
The GA and IAA contents increased rapidly during sprouting and reached to a peak when flower buds show color.
The ratio of growth promoter/inhibitor dropped to a minimum of 0.35 at leaf abscission.
The ratio increased during cold storage and reached to a maximum of 7.52 at the sprouting stage when flower buds show color.
The highest GA content was found in August, the time of flower bud formation.
The content of abscisic acid (ABA) decreased with corm growth, but increased rapidly during leaf abscission and at harvest.
It decreased again during a natural chilling period.
The GA and IAA contents increased rapidly during sprouting and reached to a peak when flower buds show color.
The ratio of growth promoter/inhibitor dropped to a minimum of 0.35 at leaf abscission.
The ratio increased during cold storage and reached to a maximum of 7.52 at the sprouting stage when flower buds show color.
The highest GA content was found in August, the time of flower bud formation.
Authors
N. Lee, W.L. Teng
Keywords
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