Articles
RESPONSE OF AMBIENT TEMPERATURES ON PRODUCTION OF FLOWERS IN PYRETHRUM AT KODAIKANAL (INDIA)
Article number
188_19
Pages
163 – 168
Language
Abstract
The response of flowering in pyrethrum due to ambient temperatures was analysed at different months of three consecutive years at Kodaikanal hills in south India.
It showed a wide range of fluctuation in mean maximum and minimum temperatures.
In general the plants exposed to lower minimum temperature produced a larger number of flowers (r = -0.5426**) with higher dry matter content and total pyrethrins.
The cumulative effect of low temperature combined with the average temperature (accumulated degree days) was found to exert a positive influence on the flowering through bud initiation (r = -0.7753**).
It showed a wide range of fluctuation in mean maximum and minimum temperatures.
In general the plants exposed to lower minimum temperature produced a larger number of flowers (r = -0.5426**) with higher dry matter content and total pyrethrins.
The cumulative effect of low temperature combined with the average temperature (accumulated degree days) was found to exert a positive influence on the flowering through bud initiation (r = -0.7753**).
Authors
S. Mohandass, V. Sampath, R. Gupta
Keywords
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