Achievements
-
Forward accumulation method was used and onset of
the growing season was determined for four stations from long period daily
rainfall in the Onttukura region of Kerala. Frequency and dry spell
probabilities, Climatic water balance were computed employing Markov chain
and Thornthwaites methods. Backward accumulation technique was employed
to determine the length of growing season.
-
Daily rainfall data for 26 stations along with weather
data for four observatories falling in the central zonal of Kerala
were collected and dependable rainfall at 75 and 90% probability levels
was computed.
- Crop-weather relations were studied for Bitter ground
crop and the different developmental stages, morphological
characters of the plant like length of vine, length, girth and
weight of fruit and total yield were determined. Analysis showed
that during the vegetative stage, combination of maximum
temperature of 34-36°C minimum temperature of 24-25°C, sunshine
period of 7-10 hrs and humidity of 70% favoured vine length. These
thresholds need to be substantiated with further field
trails.
- Field
trials were laid out with rice to generate "minimum data set" to
validate rice model developed by the
IBSNAT.
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