Articles
THE EFFECT OF PHOSPHORUS NUTRITION ON GROWTH, FLOWERING AND CHLOROPHYLL FLUORESCENCE OF NEW GUINEA IMPATIENS ‘PAGO PAGO’
Article number
548_69
Pages
561 – 566
Language
English
Abstract
The phosphorus nutrition had a pronounced effect on growth of New Guinea impatiens.
P stress reduced plant height and diameter, shoot number, leaf number and leaf dimensions.
The leaves and flowers of P deficient plants had darker color, increasing its ornamental value.
No dark spots on leaves, leaf yellowing or any other detrimental effects of P deficiency were observed on plants at all treatment levels.
P deficient plants flowered about 7 days earlier.
The study of fluorescence parameters seems to indicate that the efficiency of the photochemistry of PSII was not greatly affected by P stress.
P stress reduced plant height and diameter, shoot number, leaf number and leaf dimensions.
The leaves and flowers of P deficient plants had darker color, increasing its ornamental value.
No dark spots on leaves, leaf yellowing or any other detrimental effects of P deficiency were observed on plants at all treatment levels.
P deficient plants flowered about 7 days earlier.
The study of fluorescence parameters seems to indicate that the efficiency of the photochemistry of PSII was not greatly affected by P stress.
Authors
J. Nowak, S. Stroka
Keywords
Impatiens hawkeri, fertilization, subirrigation, growth retardation
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