Nutrition of Tissue-Cultured Plants of Dendrobium Sonia-17
By: Uma Maheswari R.
Contributor(s): Sabina George T (Guide).
Material type:
BookPublisher: Vellayani Department of Horticulture, College of Agriculture 1999DDC classification: 635 Online resources: Click here to access online Dissertation note: MSc Abstract: The present study was undertaken to evolve the nutrient dosage combination
which will produce maximum vegetative growth of tissue-cultured and ex vitro
established Dendrobium Sonia - 17 plants. The experiment was conducted from
October 1997 to June 1998. The varying nutrient dosages selected were 2.0, 6.0 and
10.0 mg of N, P and K at different combinations.
Nitrogen at 6.0 mg per plant increased the plant height, number of leaves, leaf
area, number of back bulbs and length of roots. Up to 90 DAP 2.0 mg of N found to
increase the stem girth and after that 6.0 mg found to be favourable. Number of roots
was greater with 2.0 mg of N. Phosphorus had less influence on growth. 6.0 mg of P
increases the stem girth and number of back bulbs at early stages. 2.0 mg of potassium
had influence on the plant height, number of leaves, number of backbulbs and number
of roots. Interaction between the nutrient were also observed.
6.0 mg of N and P influenced the fresh weight and 10.0 mg of N and P the dry
weight. The nutrient composition of the plants was enhanced by 10.0 mg of N, 6.0 mg
of P and 10.0 mg of K.
Based on the observed effects of nutrition on Dendrobium Sonia - 17 plants, a
nutrient dosage of2.0 mg each of N, P and K from three to six months age of ex vitro
stage, 6.0, 2.0 and 2.0 mg of N, P and K from six to nine months age, 6.0 mg of N, 2.0
to 6.0 mg of P and 2.0 mg of K from nine to twelve months age can be recommended.
F or plants above one year age a dosage of 6.0, 6.0 and 2.0 mg of N, P and K can be
recommended for maximum vegitative growth.
| Item type | Current location | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|
Theses
|
KAU Central Library, Thrissur Theses | 635 UMA/NU (Browse shelf) | Available | 171479 |
MSc
The present study was undertaken to evolve the nutrient dosage combination
which will produce maximum vegetative growth of tissue-cultured and ex vitro
established Dendrobium Sonia - 17 plants. The experiment was conducted from
October 1997 to June 1998. The varying nutrient dosages selected were 2.0, 6.0 and
10.0 mg of N, P and K at different combinations.
Nitrogen at 6.0 mg per plant increased the plant height, number of leaves, leaf
area, number of back bulbs and length of roots. Up to 90 DAP 2.0 mg of N found to
increase the stem girth and after that 6.0 mg found to be favourable. Number of roots
was greater with 2.0 mg of N. Phosphorus had less influence on growth. 6.0 mg of P
increases the stem girth and number of back bulbs at early stages. 2.0 mg of potassium
had influence on the plant height, number of leaves, number of backbulbs and number
of roots. Interaction between the nutrient were also observed.
6.0 mg of N and P influenced the fresh weight and 10.0 mg of N and P the dry
weight. The nutrient composition of the plants was enhanced by 10.0 mg of N, 6.0 mg
of P and 10.0 mg of K.
Based on the observed effects of nutrition on Dendrobium Sonia - 17 plants, a
nutrient dosage of2.0 mg each of N, P and K from three to six months age of ex vitro
stage, 6.0, 2.0 and 2.0 mg of N, P and K from six to nine months age, 6.0 mg of N, 2.0
to 6.0 mg of P and 2.0 mg of K from nine to twelve months age can be recommended.
F or plants above one year age a dosage of 6.0, 6.0 and 2.0 mg of N, P and K can be
recommended for maximum vegitative growth.
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