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Janakiram, T.
- Biological Control of Green Shield Scale, Pulvinaria psidii Maskell, on Red Ginger in India
Abstract Views :247 |
PDF Views:119
Authors
Affiliations
1 Division of Entomology and Nematology, Indian Institute of Horticultural Research, Bangalore 560089, Karnataka, IN
1 Division of Entomology and Nematology, Indian Institute of Horticultural Research, Bangalore 560089, Karnataka, IN
Source
Journal of Biological Control, Vol 23, No 1 (2009), Pagination: 93-94Abstract
The green shield scale, Pulvinaria psidii Maskell, was found at high levels on red ginger (Alpinia purpurata K. Schum.) at IIHR Farm, Bangalore in June 2006. Following the release of the Australian ladybird beetle, Cryptolaemus montrouzieri Mulsant @10 / plant, the scale population declined from 174.60 scales / shoot on 15 June to 1.40 / shoot on 1 September in 2006. The population of C. montrouzieri ranged from 3.40 to 10.34 per shoot during the study period. Since no other natural enemies were recorded, the reduction in the population of P. psidii in the red ginger biocontrol plot was attributed mainly to the action of C. montrouzieri.Keywords
Aphis nerii, Pulvinaria psidii, Cryptolaemus montrouzieri, Ferrisia virgata, Planococcus citri, Red Ginger.References
- Bennett, F. D. and Hughes, I. W. 1959. Biological control of insect pests of Bermuda. Bulletin of Entomological Research, 50: 423-436.
- Chacko, M. J., Bhat, P. K., Rao, L. V. A., Deepak Singh, M. B., Ramanarayan, E. P. and Sreedharan, K. 1978. The use of the ladybird beetle Cryptolaemus montrouzieri for the control of coffee mealybugs. Journal of Coffee Research, 88: 14-19.
- Chatterji, A. and Datta, A. D. 1974. Bionomics and control of mango mealy scale, Chloropulvinaria (Pulvinaria) polygonata (Cockerell) (Hemiptera: Coccidae). Indian Journal of Agricultural Sciences, 44: 791-795.
- Kumar, M. G. and Prakasam, C. B. 1984. The recovery of Cryptolaemus montrouzieri Muls. on the coffee green scale, Coccus viridis (Green) on the Shevaroy Hills. Indian Journal of Agricultural Sciences, 14: 34-35.
- Mani, M. and Krishnamoorthy, A. 1990. Evaluation of the exotic predator Cryptolaemus montrouzieri Muls. (Coccinellidae, Coleoptera) in the suppression of green shield scale Chloropulvinaria psidii (Maskell) (Coccidae, Homoptera) on guava. Entomon, 15: 45-48.
- Mani, M. and Krishnamoorthy, A. 1997a. Australian ladybird beetle, Cryptolaemus montrouzieri. Madras Agricultural Journal, 84: 237-249.
- Mani, M. and Krishnamoorthy, A. 1997b. Biological suppression of the soft green scale, Coccus viridis (Green) and the green shield scale, Chloropulvinaria psidii (Maskell) on sapota. Pest Management in Horticultural Ecosystems, 3: 114-116.
- Mani, M. and Krishnamoorthy, A. 1999. Suppression of green shield scale, Chloropulvinaria psidii (Maskell) with Australian ladybird beetle on lemon. Insect Environment, 4: 116-117.
- Mani, M., Krishnamoorthy, A. and Janakiram, T. 2007. Record of insect pests and their natural enemies on red ginger Alpinia purpurata (Vieill) in India. Entomon (In press).
- Wolcott, G. N. 1958. The evanescence of perfect biological control. 10th International Congress of Entomology, Proceedings (1956) 4: 511-513.
- Zimmerman, E. F. 1948. Insects of Hawaii, Vol. 5, Homoptera, Sternorhyncha. 464 p.
- Evaluation of Post Harvest Quality of some Cultivars of Chrysanthemum
Abstract Views :259 |
PDF Views:161
Authors
Affiliations
1 Directorate of Medicinal & Aromatic Plants Research (DMAPR), Boriavi, Anand, Gujarat, IN
2 Department of Horticulture, University of Agricultural Sciences, GKVK Campus, Bangalore- 560065, Karnataka, IN
3 Division of Floriculture & Landscaping, IARI, New Delhi- 110012, IN
1 Directorate of Medicinal & Aromatic Plants Research (DMAPR), Boriavi, Anand, Gujarat, IN
2 Department of Horticulture, University of Agricultural Sciences, GKVK Campus, Bangalore- 560065, Karnataka, IN
3 Division of Floriculture & Landscaping, IARI, New Delhi- 110012, IN
Source
Journal of Horticultural Sciences, Vol 5, No 1 (2010), Pagination: 81-83Abstract
A study was conducted to evaluate the performance of ten chrysanthemum cultivars for better post harvest quality under open field condition at University of Agricultural Sceinces, Bangalore. Flowers were harvested at fully open stage or nearly so. The results showed that the maximum stalk girth (0.32 cm) was recorded in Cv. Cassa and the maximum flower diameter (8.14 cm) was recorded in cv. Ravikiran, Cultivar Cassa recorded the maximum flower weight (3.59 g). Maximum number of ray florets were recorded by cv. Nilima (253.2). The maximum length of ray florets were recorded in cv. Ravikiran (3.96 cm). Maximum fresh weight, final weight and water loss (88.33, 40.63 and 47.67g respectively) from the spray type flowers were recorded in cv. Arka Swarna. Longer vase life of 16 days was also recorded in cv. Arka Swarna. Based on the performance studies it was observed that Arka Swarna, Ravikiran, Red gold, Nilima and Arka Ravi performed better post harvest quality and may be selected for cut flower production.Keywords
Chrysanthemum, Post Harvest Quality, Vase Life.- Acclimatization and Field Evaluation of Micropropagated Plants of Chrysanthemum Cv.'Arka Swarna'
Abstract Views :356 |
PDF Views:170
Authors
Affiliations
1 Division of Biotechnology, Indian Institute of Horticultural Research, Hessarghatta Lake, Bangalore-560089, IN
2 Division of Ornamental Crops, IIHR, Bangalore – 560 089, IN
1 Division of Biotechnology, Indian Institute of Horticultural Research, Hessarghatta Lake, Bangalore-560089, IN
2 Division of Ornamental Crops, IIHR, Bangalore – 560 089, IN
Source
Journal of Horticultural Sciences, Vol 4, No 1 (2009), Pagination: 32-35Abstract
Chrysanthemum cv.'Arka Swarna' was micropropagated using shoot-tip and nodal microcuttings on MS medium containing 3% sucrose and 0.25% Phytagel® in the absence of externally supplied plant growth regulators, yielding 90-100% ischolar_mained plantlets, or in medium containing 1 μM benzyladenine or kinetin yielding 20-32% plantlets within 2-4 weeks of subculture. The stocks were acclimatized employing sachet technique wherein the ischolar_mained plantlets (2.5-4 cm) were planted in polythene bags of 5"×9" filled to one-third height with planting mixture. The closed bags with 1-5 plants were incubated under conditions similar to the in vitro stocks. The plantlets recorded 90-100% establishment within 4 weeks. The ex vitro established plants were evaluated in the field a month later by direct planting , or after one month in a field nursery-bed, along with conventional suckers. While field establishment (80-95%) was not significantly influenced by the treatments, micropropagated plants put through the nursery appeared to be the best among the three treatments in vegetative growth, floral characteristics and flower yield, demonstrating advantage of micropropagation over conventional propagation for shy-suckering chrysanthemums.Keywords
Acclimatization, Chrysanthemum, Dendranthema grandiflora, Hardening, Micropropagation.- Studies on Genetic Variability, Heritability and Genetic Advance in Chrysanthemum
Abstract Views :191 |
PDF Views:178
Authors
Affiliations
1 Directorate of Medicinal & Aromatic, Plants Research, Boriavi, Anand, Gujarat, IN
2 Department of Horticulture, University of Agricultural Sciences, GKVK Campus, Bangalore- 560 065, IN
3 Division of Ornamental Crops, IIHR, Hessaraghatta Lake Post, Bangalore- 560 089, IN
1 Directorate of Medicinal & Aromatic, Plants Research, Boriavi, Anand, Gujarat, IN
2 Department of Horticulture, University of Agricultural Sciences, GKVK Campus, Bangalore- 560 065, IN
3 Division of Ornamental Crops, IIHR, Hessaraghatta Lake Post, Bangalore- 560 089, IN
Source
Journal of Horticultural Sciences, Vol 4, No 2 (2009), Pagination: 174-176Abstract
Studies on genetic variability, heritability and genetic advance were carried out among ten genotypes of chrysanthemum for characters to identify elite genotypes to be used in breeding programme. The results showed high phenotypic and genotypic co-efficient of variation for traits like number of suckers per plant (GCV=90.13; PCV=95.67) and flower disc diameter (GCV=63.19; PCV=66.76). High heritability values were obtained for all the characterister except number of sprays per plant and plant spread. In high heritability estimate coupled with high genetic advance as per cent of mean was observed for number of suckers per plant (174.91), flower disc diameter (123.23) and number of flowers per plant (114.81). It was observed that heritable variability in the breeding materials characters like number of suckers per plant, flower disc diameter, number of flowers per plant, flower weight, yield per plant and number of ray florets could be exploited for improvement through crop breeding programme.Keywords
Chrysanthemum, Genetic Variability, Genetic Advance Heritability.- Variability in Hip Characters in Rosa Species
Abstract Views :171 |
PDF Views:106
Authors
Affiliations
1 Division of Ornamental Crops, Indian Institute of Horticultural Research, Bangalore-560089, IN
2 Institute of Plant Genetics-Molecular Plant Breeding Herrenhacusen strz Hannover, DE
1 Division of Ornamental Crops, Indian Institute of Horticultural Research, Bangalore-560089, IN
2 Institute of Plant Genetics-Molecular Plant Breeding Herrenhacusen strz Hannover, DE