EFFECT OF SPACING AND NITROGEN LEVELS ON QUANTITATIVE AND QUALITATIVE CHARACTERISTICS OF ASIATIC LILY CV. TRESSOR UNDER SHADE NET CONDITION
Loading...
Date
2017-08-03
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
COLLEGE OF HORTICULTURE VENKATARAMANNAGUDEM - 534 101, WEST GODAVARI DISTRICT Dr. Y.S.R. HORTICULTURAL UNIVERSITY
Abstract
The present investigation entitled “Effect of spacing and nitrogen levels on quantitative and qualitative characteristics of Asiatic lily cv. Tressor under shade net condition” was carried out at College of Horticulture, Venkataramannagudem, West Godavari district of Andhra Pradesh during Rabi 2016-2017. The experiment was laid out with nine different treatment combinations in a Factorial Randomized Block Design (FRBD) with each factor replicated thrice. The results of the experiment includes early bulb sprouting was observed with the wider spacing of 30 cm x 15 cm and application of nitrogen at 200 kg ha-1 whereas, highest delay in sprouting was observed in 15 cm x 15 cm spacing and application of 100 kg N ha-1. Among interactions, the combination of 30 cm x 15 cm + 200 kg N ha-1 was found to show the earliest sprouting followed by S3N2 (30 cm x 15 cm + 150 kg N ha-1).
Vegetative parameters like plant height, number of leaves, leaf area per plant and total chlorophyll content were found to be maximum in the plants which are spaced with wider spacing (30 cm x 15 cm) and also application of higher nitrogen (200 kg ha-1). The highest values with respect of plant height, number of leaves, leaf area/plant and total chlorophyll content per plant were recorded with combination of S3N3 (30 cm x 15 cm + 200 kg N ha-1) and was on par with the
combinations of S3N2 (30 cm x 15 cm + 150 kg N ha-1) and S2N3 (25 cm x 15 cm + 200 kg N ha-1) with respect of the above vegetative parameters except leaf area index.
The minimum number of days taken for flower bud emergence, colour visibility in bud, 50 % flowering and days to flowering were recorded by plants with closer spacing of 15 cm x 15 cm (S1) and application of lower dose of nitrogen (100 kg ha-1). Among interactions, the combination of S1N1 (15 cm x 15 cm + 100 kg N ha-1) significantly recorded the best results and was found on par with combination of S1N2 (15 cm x 15 cm + 150 kg N ha-1) with respect to flower bud emergence, colour visibility in bud and 50 % flowering.
Many of the floral parameters viz., number of flowering shoots per umbel, flower diameter and flower weight recorded significantly the best results with the 30 cm x 15 cm spacing and application of 200 kg N ha-1 (S3N3) followed by 25 cm x 15 cm spacing and supply of 150 kg N ha-1 (S2N2). Among interactions, the combination of S3N3 (30 cm x 15 cm + 200 kg N ha-1) recorded significantly the best results with respect to number of flowering shoots per umbel, flower diameter and flower weight.
Maximum number of flowering shoots per plot and per 1000 m2 was registered by 30 cm x 15 cm spacing and application of 200 kg N ha-1 followed by 25 cm x 15 cm spacing and 200 kg N ha-1. Among interactions, the combination of 30 cm x 15 cm + 200 kg N ha-1 (S3N3) recorded maximum value with respect to flowering shoots per plot and flowering shoots per 1000 m2 followed by combination of 25 cm x 15 cm + 200 kg N ha-1 (S2N3). The quality parameters like in situ longevity of flowers and vase life was significantly higher with wider levels of spacing (30 cm x 15 cm) and application of higher dose of nitrogen (200 kg ha-1). Interaction effect did not show significant results on vase life of flowers.
The bulb parameters viz., number of bulbs per plant, number of bulblets per plant, bulb diameter, bulb weight and bulb yield per plant was significantly maximum with wider levels of spacing (30 cm x 15 cm) and higher dose of nitrogen (200 kg ha-1), combination of both of them (30 cm x 15 cm +200 kg N ha-1) followed by S3N2 (30 cm x 15 cm + 150 kg N ha-1) except for number of bulblets per plant (S2N3). Bulb yield per plot increased with increase in plant spacing (30 cm x 15 cm) and application of higher dose of nitrogen (200 kg ha-1). Among interactions, the combination of S3N3 (30 cm x 15 cm + 200 kg N ha-1) recorded the maximum bulb yield per plot followed by S2N3 andN2.
High nitrogen uptake in soil and leaf samples after harvest recorded with wider level of spacing (30 cm x 15 cm) and higher nitrogen doses (200 kg ha-1). The interaction effect did not show significant results on nutrient uptake in soil and leaf samples.
The highest benefit cost ratio was observed by treatment combination of 30 cm x 15 cm + 200 kg N ha-1 followed by same spacing in combination with 150 kg N ha-1. Higher flower and bulb yield was obtained with this treatment combination so will get higher returns from the Asiatic lily cv. Tressor grown under shadenet conditions.
Description
The experiment was laid out with nine different treatment combinations in a Factorial Randomized Block Design (FRBD) with each factor replicated thrice. The results of the experiment includes early bulb sprouting was observed with the wider spacing of 30 cm x 15 cm and application of nitrogen at 200 kg ha-1 whereas, highest delay in sprouting was observed in 15 cm x 15 cm spacing and application of 100 kg N ha-1. Among interactions, the combination of 30 cm x 15 cm + 200 kg N ha-1 was found to show the earliest sprouting followed by S3N2 (30 cm x 15 cm + 150 kg N ha-1).
Keywords
null
Citation
College of Horticulture, Venkataramannagudem, West Godavari district of Andhra Pradesh