Study on Pre-Sowing Treatments and Nutrient Response in Dalbergia latifolia Roxb.
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Date
2017-08
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University of Agricultural Science, Dharwad
Abstract
Rose wood (Dalbergia latifolia) belongs to family Fabaceae. It is one of the most important timber yielding species in India. It is well known for producing very hard and durable wood and has high commercial value. It is used in furniture construction, manufacture of guitar sets and decorative veneers. In this regard, two experiments laid in Completely Randomized Design were conducted at the College of Forestry, Sirsi during 2016-17 in order to know the effect of eight pre-sowing treatments on seed germination and to assess the effect of integrated nutrient management (11 treatments involving poultry manure, vermicompost, FYM, mycorrhizae, NPK and their combination) on growth of seedlings.
In first experiment, the results indicated that seeds treated with tap water for 12 hours recorded significantly maximum germination percentage (70.00%), mean daily germination (3.33), peak value (6.35), germination rate (5.11) and germination value (21.15) over control.
Results of second experiment indicated that combined application of different quantities of poultry manure (10 g) + vermicompost + (15 g) + FYM (25 g) + mycorrhizae (10 g) + NPK (0.5 g/1 g/0.5 g) in 5″ × 8″ polybags containing potting mixture (soil, sand and FYM - 2:1:1) recorded significantly maximum seedling height (43.68 cm), collar diameter (4.96 mm), number of leaves (61.63), seedling fresh weight (73.32 g) and seedling dry weight (34.90 g) over control.
Soaking seeds in tap water for 12 hrs and combined application of organic, inorganic and biofertilizers provided a good way to enhance the germination attributes and seedling growth of rosewood.