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Influence of Seed Pre-treatments with Plant Growth Regulators on Metabolic Alterations of Germinating Maize Embryos Under Stressing Temperature Regimes

The germination performance of maize seeds (Zea mays L. cv. Partap-1) pre-treated individually with the substituted phthalimide AC 94,377 (1-(3-chlorophthalimido)-cyclohexanecarboxamide), GA4+7 and ABA was markedly improved under sub- and supra-optimal temperature regimes. ABA was especially stimula...

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Bibliographic Details
Published in:Annals of botany 1989-07, Vol.64 (1), p.37-41
Main Authors: BASRA, AMARJIT S., DHILLON, REWA, MALIK, C. P.
Format: Article
Language:English
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Summary:The germination performance of maize seeds (Zea mays L. cv. Partap-1) pre-treated individually with the substituted phthalimide AC 94,377 (1-(3-chlorophthalimido)-cyclohexanecarboxamide), GA4+7 and ABA was markedly improved under sub- and supra-optimal temperature regimes. ABA was especially stimulatory at the sub-optimal temperature. Metabolic alterations in the germinating embryos of treated seeds revealed an increased accumulation of soluble sugars and proteins compared with the controls under stressing temperatures. The activities of acid phosphatase, invertase, catalase and peroxidase were seemingly related to the alleviation metabolism. It is suggested that gibberellins and abscisic acid may have positive regulatory effects in triggering the system for stress alleviation.
ISSN:0305-7364
1095-8290
DOI:10.1093/oxfordjournals.aob.a087805