EFFECT OF DIATOMACEOUS EARTH (AS A SOURCE OF SILICON) ON GROWTH, YIELD AND QUALITY OF BANANA RATOON CROP II cv. GRAND NAINE (Musa AAA)
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Date
2016-08
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K.R.C. COLLEGE OF HORTICULTURE COLLEGE OF ARABHAVI (UNIVERSITY OF HORTICULTURAL SCIENCES, BAGALKOT)
Abstract
Research was carried out in Kittur Rani Channamma College of Horticulture, Arabhavi, in Gokak (Tq.), Belagavi (Dist.), Karnataka, during 2015-2016 to study the effect of soil application of diatomaceous earth as a source of silicon on growth, yield and quality of banana ratoon crop II cv. Grand Naine. The experiment was laid out in RBD with ten treatments and replicated thrice on plants planted at 1.8 m X 1.8 m spacing.
Among the different treatments, highest pseudostem height (198.22 cm), number of functional leaves (15), leaf area (12.24 m2) and total chlorophyll content (2.10 mg/g at five MAR & 2.33 mg/g at the time of harvesting) were recorded in T10 (RDF + 750 kg/ha DE) and the least were reported in the treatment T4 (DE alone) at various plant growth stage.
With respect to total crop duration, T9 (RDF + 500 kg/ha of DE) recorded the early (273.22 days) crop duration as compared to other treatments. The highest bunch weight (20.20 kg) and yield (62.37 t/ha) was recorded in T10 (RDF + 750 kg/ha DE). Similar trend was also noticed for bunch and finger characters, pulp weight, peel weight, NPK in leaf and soil, while the least whitefly and sigatoka prevalence also reported in T10(RDF + 750 kg/ha of DE) and was on par with T9 (RDF + 500 kg/ha of DE). Regarding quality parameters, maximum TSS, total sugars and minimum acidity was noticed in T10 (RDF + 750 kg/ha of DE) and highest cost: benefit ratio was recorded in T8 (RDF + 250kg/ha DE).
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TH570
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