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Jawaharlal, M.
- Optimization of Planting Stage and Pinching Level in Carnation
Authors
1 Department of Floriculture and Landscaping, Tamil Nadu Agricultural University, Coimbatore T.N., IN
2 Department of Floriculture and Landscaping, Tamil Nadu Agricultural University, Coimbatore T.N., IN
Source
The Asian Journal of Horticulture, Vol 8, No 2 (2013), Pagination: 487-490Abstract
The experiment on the optimization of planting stage and pinching level in carnation was carried out with the different stages of day's old ischolar_mained cuttings and pinching level. The experimental combinations of the study with different days of ischolar_mained cuttings and single pinching at three different nodal point resulted in the optimizing the days and pinching level in carnation. This will directly have an impact on the ultimate productivity of the crop. The treatment T8 with 30 day old ischolar_mained cuttings + single pinch at the 5th node proved to be the best in terms of number of flowers per plant (6.00, 8.30 and 5.40) and flower yield per sq.m. area (216.00, 298.80 and 194.40). The vegetative characters plant height, number of leaves per plant and laterals per plant, internodal length, quality characters viz., length and girth of flower stalk, flower yield parameters and physiological characters all of which tends to increase in the overall production and quality of flower.Keywords
Carnation, Planting Stage, Single Pinching, Nodal Level
- Optimization of Growing Media Consortia for Carnation
Authors
1 Horticultural Research Station, Ooty (T.N.), IN
2 Horticultural College and Research Institute for Women, Trichy (T.N.), IN
Source
The Asian Journal of Horticulture, Vol 10, No 1 (2015), Pagination: 17-25Abstract
Carnation cultivation is being carried out under protected environmental conditions in the hilly regions of Tamil Nadu. Farmyard manure, vermicompost, cocopeat constituted the media components in the consortium. The components were added based on the ratio of carbon-nitrogen level, as two levels with 20 kg and 30 kg of consortia for 1 sq.m of area. The media consortia components were added as per the treatment schedules after bed preparation. The biofertilizers Azospirillum, phosphobacteria, VAM and biocontrol agents Trichoderma viridae, Pseudomonas fluorescens were added each @ 20 g/m2 at bimonthly intervals except control. The beds added with consortia at the ratio of 10:1:1 (30 kg of consortia) with 25 kg of farmyard manure, 2.5 kg of vermicompost, 2.5 kg of cocopeat with biofertilizers Azospirillum, phosphobacteria, VAM and biocontrol agents Trichoderma viridae, Pseudomonas fluorescens @ 20 g/m2 at bimonthly intervals proved best in terms of yield and quality when compared to control. Yield of carnation flowers increased with 249.48, 352.80, 201.60 flowers/m2 over control with 180.00, 234.00, 180.00 flowers/m2 during Ist, IInd and IIIrd flush of flowering and stalk length with 77.30 73.20, 71.50 cm over control with 60.00, 58.50, 54.00 cm during Ist, IInd and IIIrd flush of flowering. The media consortia helps in retaining the soil compactness with respect to soil moisture, aeration porosity and the plant growth promoting organisms helps in mobilizing the nutrients and crop stand till the cropping period.
Keywords
Carnation, Growing Media Consortia, Biofertilizers, Biocontrol Agents.- Correlation and Path Analysis Studies in Double Type Tuberose
Authors
1 Department of Floriculture and Landscaping, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore (T.N), IN
2 Department of Floriculture and Landscaping, Horticultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore (T.N), IN
Source
The Asian Journal of Horticulture, Vol 10, No 1 (2015), Pagination: 113-117Abstract
Genetic variability studies in tuberose were carried out among 5 varieties for 12 characters at Botanical gardens, Tamil Nadu Agricultural University, Coimbatore during the year 2011-2013. In genotypic and phenotypic levels, weight of florets per spike exhibited positive relationship with yield of florets per plot (4 × 1 m) (0.965) and number of spikes per m2 (0.534). Positive and significant association was also observed for number of spikes/ m2 with yield of florets per plot (4 × 1 m) (0.565). The maximum positive direct effect on number of spikes per m2 was contributed by weight of florets per spike (0.6378) followed by number of leaves per plant (0.5782), flowering duration (0.3756), rachis length (0.2779), days taken for sprouting of bulb (0.2580), length of the floret (0.2277) and days to spike emergence (0.0213). Hence, the characters viz., weight of florets per spike, number of leaves per plant, flowering duration, rachis length, days taken for sprouting of bulb, length of the floret and days to spike emergence had significant positive correlation co-efficients and positive direct effects on yield which formed reliable indices for selection of genotypes for yield.