INFLUENCE OF STAGES OF HARVESTING ON SEED YIELD, QUALITY AND INCIDENCE OF Aspergillus flavus IN CONFECTIONERY GROUNDNUT VARIETIES
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Date
2001-08-03
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE
Abstract
In an attempt to findout the influence of stages of harvesting on seed yield,
quality and incidence oi Aspergillus flavus in confectionery groundnut varieties, a field
experiment was conducted during kharif 1998 at College of Agriculture Farm, University
of Agricultural Sciences, Dharwad. The experiment consisted of 18 treatment
combinations comprising six varieties (TKG-19A, ICGV 86564, BAU-13, Somanath,
JL-24 & Dh-3-30) and three harvesting stages viz., one week early, normal and one
week late stage in randomized block design with factorial concept. The results indicated
that in yield and its attributing characters, JL-24 recorded higher number of pods per
plant, pod and seed yield per plant, pod and seed yield per hectare Among the harvesting
stages, the normal harvesting stage resulted in higher values in these parameters
followed by later and early harvesting stages. The seed quality parameters like sound
mature kernels, shelling percentage, vigour index, field emergence, germination
percentage, shoot and root length and oil content were highest in JL-24 with minimum
electrical conductivity, moisture content and less incidence of Aspergillus flavus. The
variety BAU-13 resulted in higher incidence oi Aspergillus flavus, electrical conductivity
and moisture content. Whereas, ICGV 86564 recorded highest 100 seed weight. Among
the harvesting stages, the normal stage recorded higher values with lesser incidence
of Aspergillus flavus and electrical conductivity followed by late and early harvesting
stages. The variety BAU-13 recorded highest per cent recovery of bold seeds with less
recovery of medium and small seeds. The recovery of bold and medium seeds was
higher with lower recovery of small seeds in normal harvesting stage. Among the
confectionery varieties ICGV 86564 was found to be superior for various quality
parameters ultimately resulting in higher returns of Rs.43,353/ha. Hence, it is concluded
that this variety can be grown under Dharwad condition for confectionery purpose.
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