STUDIES ON METHOD OF BREAKING DORMANCY, NUTRIENT LEVELS AND CORM SIZE ON GROWTH, YIELD AND QUALITY OF GLADIOLUS (Gladiolus grandiflorus L.)
KrishiKosh
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Title |
STUDIES ON METHOD OF BREAKING DORMANCY, NUTRIENT LEVELS AND CORM SIZE ON GROWTH, YIELD AND QUALITY OF GLADIOLUS (Gladiolus grandiflorus L.)
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Creator |
M S, HARISH
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Contributor |
G V, BASAVARAJU
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Subject |
sowing, developmental stages, gladiolus, planting, biological development, nutrients, dormancy, harvesting, sucrose, bacteria
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Description |
Gladiolus is an easy-to-grow bulbous flower crop, especially valued for its use in floral arrangements and decorations. Prolonged dormancy, nutrient levels and selection of optimum sized seed corms are the major hindrances in the commercial cultivation of gladiolus. Laboratory and field experiments were conducted to determine the method of breaking dormancy, nutrient levels and corm size on growth, yield and quality of gladiolus. Corms treated with VAM+ Azospirillum+ Azotobactor + RDF (T15) with seed corm size (> 4.5 cm diameter) gave significantly better sprouting, growth and yield parameters viz. initial sprouting (21.0 days), 50 per cent (19.0 days) and 100 per cent sprouting (29.0 days respectively), plant height (29.73 cm, 80.53 cm and 80.86 cm at 30, 60 and 90 DAS respectively), leaves plant-1 (5.06, 5.73 and 10.20 at 15, 30 and 60 DAS respectively), emergence of spike (61.6 days), 50 per cent (73.6 days) and full blooming, (79.66 days respectively), spikes per plant (5.00), spikes per plot (23.33) spikes per ha (458333) and corm and cormel yield per plant (3.66, 5.08), diameter of corm (0.97 cm) thickness of corm (1.33 cm) were recorded as compared to control and other treatments. Seed corms treated with GA3 @ 250 ppm recorded significant least number of days to sprout emergence (17.88 days), 50% sprouting (23.66 days) in addition to increase the sprouting percentage to the extent of 99.7%. Hence this GA3 @ 250 ppm and biofertilizer combination with larger seed corm size can be recommended for application in commercial cultivation of gladiolus. |
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Date |
2016-10-26T08:36:11Z
2016-10-26T08:36:11Z 2014-07-21 |
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Type |
Thesis
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Identifier |
Th-10835
http://krishikosh.egranth.ac.in/handle/1/81986 |
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Language |
en
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Format |
application/pdf
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Publisher |
University of Agricultural Sciences GKVK, Bangalore
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