Effect of seasonal radiation and daylength shifts on growth and development of spray carnation. 1. Vegetative growth.

Authors

  • D. Klapwijk

DOI:

https://doi.org/10.18174/njas.v35i1.16758

Abstract

Studies are reported on 32 successive plantings, from September 1982 to July 1984, of the cv. West Pink grown in containers under glass. The relative growth rate of the shoots was markedly affected by the season. The minimum rate was about 2%/day in December; it increased linearly to almost 9% in mid-summer and decreased linearly again thereafter. Leaf initiation rates showed the same pattern with a minimum of 0.09 and a maximum of 0.24 leaf pairs/day. Stem elongation was also characterized by 2 linear functions, with a minimum of about 0.1 cm/day in winter and a maximum of slightly less than 0.5/day in summer. The effect of season on flower growth between initiation and full bloom was similar to that on fresh weight and leaf initiation. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Published

1987-02-01

Issue

Vol. 35 No. 1 (1987)

Section

Papers

License

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