STUDIES ON THE EFFECT OF PLANT GROWTH REGULATORS ON GROWTH AND YIELD OF ASHWAGANDHA (Withania somnifera Dunal.
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Title |
STUDIES ON THE EFFECT OF PLANT GROWTH REGULATORS ON GROWTH AND YIELD OF ASHWAGANDHA (Withania somnifera Dunal.
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Creator |
SAHITYA KUNCHAM
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Contributor |
Dr.D.VENKATA SWAMI
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Subject |
grade roots ,plant growth regulators,growth, yield
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Description |
The present study entitled “Studies on the effect of plant growth regulators on growth and yield of ashwagandha (Withania somnifera Dunal.)” was carried out during 2012-2013 at Horticultural College and Research Institute, Dr.Y.S.R. Horticultural University, Venkataramannagudem, West Godavari District, A.P. The experiment was conducted with the growth regulators viz., Maleic Hydrazide (300 ppm, 400 ppm and 500 ppm), Cycocel (100 ppm, 150 ppm and 200 ppm) and GA3 (50 ppm, 100 ppm and 150 ppm) each at three concentrations along with a control. The experiment was conducted in a randomized block design and replicated thrice. GA3 at 150 ppm has significantly increased plant height (81.53 cm), plant spread (50.76), number of branches (24.00), leaf area (1143.92), leaf area index (0.565) at all stages of crop growth starting from 60 DAS to harvest, whereas the stem girth was significantly increased by 200 ppm cycocel. Among the yield and yield attributes, the treatment GA3 at 150 ppm has significantly decreased days to 50 per cent flowering (62.33 days), days to first harvest of berries (116.00 days) and increased number of berries per plant (296.66), number of seeds per berry (41.66) and seed yield (168.18 kg ha-1). The treatment 150 ppm cycocel recorded maximum values for root length (26.33 cm) followed by 300 ppm MH (24.48 cm) and treatment 300 ppm MH had submitted produced thickest roots (4.44 cm) which was on par with application of 100 ppm cycocel (4.37 cm). Fresh root weight (18.96 q ha-1), dry root weight (8.55 q ha-1), fresh root yield (1416.58 kg ha-1) and dry root yield (447.30 kg ha-1) were maximum with cycocel at 200 ppm. Whereas maximum percentage of ‘A’ grade roots (41.73 %) and ‘B’ grade roots (41.10 %) were obtained by treatment with cycocel at 150 ppm and was on par with cycocel at 200 ppm and maximum percentage of ‘C’ grade roots (41.01 %) were obtained by treatment with 50 ppm GA3 which was on par with 100 ppm GA3, 50 ppm GA3 and control. Highest percentage of ‘low’ grade roots (28.35 %) were obtained with control. . |
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Date |
2016-07-25T12:18:33Z
2016-07-25T12:18:33Z 2013-07 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/69744
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Language |
en
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Format |
application/pdf
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Publisher |
Dr.Y.S.R.HORTICULTURAL UNIVERSITY
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