EFFECT OF SPACING AND NITROGEN LEVELS ON GROWTH AND YIELD OF GARDEN RUE (Ruta graveolens L.)
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Date
2013-08
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K.R.C. COLLEGE OF HORTICULTURE, ARABHAVI (UNIVERSITY OF HORTICULTURAL SCIENCES, BAGALKOT)
Abstract
An investigation was carried out to study the effect of spacing and nitrogen levels on growth and yield of garden rue (Ruta graveolens L.) at Department of Plantation, Spices, Medicinal and Aromatic crops, K.R.C. College of Horticulture, Arabhavi, during 2012-2013.
At harvest (180 DAP), maximum plant height, fresh and dry herbage and root yield per plot, per hectare and oil yield per hectare was noticed in S1 (45 x 30 cm). Minimum days to first flowering was observed with spacing of 45 x 45 cm (S2) whereas, wider spacing of 45 x 60 cm (S3) registered more number of primary branches per plant, flowers per plant, maximum plant spread, stem girth, fresh and dry herbage and root yield per plant and per cent dry matter.
At harvest, application of 150 kg nitrogen per hectare (N4) recorded maximum plant height, more number of primary branches per plant, flowers per plant, plant spread, stem girth, fresh and dry herbage and root yield per plant, per plot, per hectare and per cent dry matter. Minimum days to first and fifty per cent flowering was noticed with application of 60 kg nitrogen per hectare (N1). Whereas, highest essential oil content, oil yield per plant and per hectare was observed with the application of 120 kg nitrogen per hectare (N3).
At harvest, the treatment combination S3N4 recorded highest fresh and dry herbage yield per plant, whereas highest fresh root yield per plant was recorded in S2N4. Plants grown at S1N4 combination registered maximum plant height, fresh and dry herbage and root yield per plot, per hectare, oil yield per hectare, per cent dry matter, net returns and C: B ratio. Treatment combination of S2N3 and S3N3 recorded highest oil content whereas, the oil yield per plant was maximum in S3N3 combination.
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TH454
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