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Kumar, Suresh
- Variation in Rooting Response of Shoot Cuttings in Twenty Clones of Dalbergia sissoo Roxb.
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Indian Forester, Vol 134, No 11 (2008), Pagination: 1419-1426Abstract
The ischolar_maining behaviour is important for selecting clones for multiplication, as hard-toischolar_main clones are likely to increase the cost of production of propagules substantially. In this experiment, ischolar_maining ability of nodal shoot cuttings of 20 clones of Dalbergia sissoo Roxb. were studied under intermittent mist conditions. Out of twenty clones, clone No. 33 (Tulsipur, Gonda), 24 (C.B. Ganj, Bareilley), 10 (Pathri, Haridwar), 237 (Banketwa, Gonda), and 9 (Chiryapur, Bijnor) produced the maximum shoot diameter, dry weight of ischolar_main and shoot, number of ischolar_mains and average ischolar_main length of resultant plants. Propagules of these clones could be produced of plantable size in less than 121 days.Keywords
Rooting Response, Shoot Cuttings, Variation, Dalbergia sissoo Roxb., Clones
- Trading of Ethnomedicinal Plants in the Indian Arid Zone
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Indian Forester, Vol 131, No 3 (2005), Pagination: 371-378Abstract
Trading of ethno-medicillal plants in the Indian arid zone has been studied in the districts of Jaisalmer, Barmer, Bikaner and Jodhpur. Of 682 species reported in the Indian arid zone, 131 have been found to be of ethno-medieinal value. Of these, 41 species are collected and sold within Indian arid zone market. Large inter- and intra-district variation in sale prices was found. Of the top 20 species in domestic trade, 12 are from this area. Variation up to five times in their rate vis-a-vis western Rajasthan has been found. It has been concluded that 23 species can be prioritised for cultivation on large scale. Standardisation of product and price support are urgently required to promote herbal cultivation in western Rajasthan.- Vegetative Propagation through Juvenile Shoot Cuttings of Melia composita Willd.
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Indian Forester, Vol 132, No 12 (2006), Pagination: 1561-1569Abstract
Melia composita is a fast growing tree species popularly grown in homesteads and agroforestry plantations. Effects of 1000, 2000 and 3000 ppm of IBA, IAA and NAA were studied on the ischolar_maining ability, sprouting percentage, sprout length, number of leaves, number of ischolar_mains and length of ischolar_mains in juvenile shoot cuttings of Melia composita from March 2005 to September 2005 under intermittent mist conditions. IBA 3000 ppm produced the best results giving 57.14% ischolar_maining, 3.92 ischolar_mains per ischolar_mained cutting and 4.31 cm mean ischolar_main length in 45-50 days. Among the months, July planted cuttings gave the best results. The technology can be used to multiply superior genotypes for tree improvement and mass propagation for afforestation programmes.- Studies on Cone Maturation and Pre-sowing Seed Treatment on Germination Behaviour of Chilgoza Pine (Pinus gerardiana Wall.)
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Affiliations
1 Department of Silviculture and Agroforestry, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan, 173230 (HP), IN
1 Department of Silviculture and Agroforestry, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan, 173230 (HP), IN
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Indian Forester, Vol 139, No 11 (2013), Pagination: 1030-1033Abstract
Present study deals with the treatment of seeds with growth regulators and chemicals to enhance germinability of seeds of chilgoza pine (Pinus girardiana) which is an endemic but highly endangered species of North-Western Himalaya. The study revealed that significantly higher germination (73.23%), germination capacity (78.45%), germination energy (43.09%) and germination value (3.11) in chilgoza pine seed coincided with 4th collection date i.e. 4th October. At this stage the decreased cone specific gravity (0.87) and moisture content (43.09%) was found to have a promotry affect on germination behaviour of the seed. Application of 100ppm GA3 proved to be the most effective pre-sowing treatment, resulting in highest success in chilgoza pine seed. Similarly, twenty four hour soaking proved to be more effectiveas compared to twelve hours soaking for improving germination parameters in chilgoza seed.Keywords
Seed Treatment, Chilgoza Pine, Germination, Pinus gerardianaReferences
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- Butola, J.S. and Badola, H.K. (2004). Seed germination improvement using chemicals in Heracleum candicansWall, a threatened medicinal herb of Himalaya. Indian Forester, 130(5): 565-572.
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- Uniyal, D.P., Sharma, V.K. and Prasad, M. (2002). Cone attributes as indices of seed maturity in blue pine (Pinus wallichiana ab Jacks). Annals of Forestry, 10(2): 268-272.
- Verma, Sunny. (2007). Studies on maturity indices of Himalayan cedar (Cedrus deodara G. don) seeds. . M.Sc Thesis, Dr Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan (H.P.) 62p.
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- Diversity, Disturbance and Regeneration Status of forests along an Altitudinal Gradient in Paddar Valley, Northwest Himalayas
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Affiliations
1 Department of Environmental Sciences, University of Jammu.
1 Department of Environmental Sciences, University of Jammu.
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Indian Forester, Vol 140, No 4 (2014), Pagination: 348-353Abstract
The present study deals with the phytosociological analysis, anthropogenic impacts and regeneration status of tree species in five dominant forest types along an altitudinal gradient in Paddar valley of Northwest Himalaya. The tree density varied between 179 to 245 trees/ha whereas the total basal area varied between 24.7 and 37.7 m²/ha in five forest types. The value of Shannon-Weiner index (H') was found maximum for western mixed coniferous forest (1.75) whereas Concentration of dominance (Cd) and Evenness (J') were found maximum for dry temperate deciduous forest (0.41) and dry deodar forest (0.32) respectively. The maximum disturbance was found in the dry temperate deciduous forests due to heavy dependence of the locals on oak, Quercus baloot for fuelwood and fodder. The results pertaining to regeneration status of 18 tree species shows 4 species with good regeneration,6 species with fair regeneration and 5 species with poor regeneration status whereas 3 tree species were found to have no regeneration at all. The regeneration was good for mixed coniferous forest and birch fir forests, poor for broadleaved and coniferous forest and fair for dry temperate deciduous forest and dry deodar forests.Keywords
Anthropogenic Disturbance, Regeneration, Phytosociology, Temperate Forests- Soil Organic Carbon Status of Indian forests
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1 Indian Institute of Remote Sensing, Dehradun, IN
1 Indian Institute of Remote Sensing, Dehradun, IN
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Indian Forester, Vol 140, No 5 (2014), Pagination: 468-477Abstract
Soil organic carbon (SOC) is a major component of global carbon sinks and forests being one of the most important ecosystems for storing SOC. A database of SOC estimates along with other attribute information for different forest types of India were compiled from various literature sources and normalized for 1990 using modeling approach. Different thematic maps in digital format were prepared and harmonized using standard geospatial reference. The database was linked to thematic maps and used to estimate SOC densities and stock for three depth classes (0-25, 0-50 and 0-100 cm) in geographical information system. The mean soil organic carbon density estimates for top 30 cm ranged from 22.42 t/ha in sub-tropical dry evergreen forest to 100.33 t/ha in Himalayan moist temperate forest and similar trend was observed for top 0-50 and 0-100 cm as well. Soil organic carbon stock estimates for top 30 cm ranged from 1.89 Tg C in Himalayan dry temperate to 1406.68 Tg C in tropical moist deciduous forest and comparable trend was observed for top 0-50 and 0-100 cm. The total soil organic C pools in Indian forests have been estimated as 3.72, 5.25 and 7.66 Pg C in top 0-25, 0-50 and 0-100 cm soil depth respectively (1 Pg = 1000 Tg). The present database may form inputs in models to study carbon flux and help in prioritizing areas for carbon sequestration in Indian forests.Keywords
Soil Organic Carbon (soc), Indian Forests, Carbon Flux, Carbon Sequestration- Phytosociological Status under Pink Cedar (Acrocarpus fraxinifolius Wight and Arn.) Plantations in Himachal Pradesh
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Affiliations
1 Department of Silviculture and Agroforestry, Dr. Y.S. Parmar University of Horticulture and Forestry Nauni, Solan, 173230 (HP), IN
2 Department of Basic Sciences, Dr. Y.S. Parmar University of Horticulture and Forestry Nauni, Solan, 173230 (HP), IN
1 Department of Silviculture and Agroforestry, Dr. Y.S. Parmar University of Horticulture and Forestry Nauni, Solan, 173230 (HP), IN
2 Department of Basic Sciences, Dr. Y.S. Parmar University of Horticulture and Forestry Nauni, Solan, 173230 (HP), IN
Source
Indian Forester, Vol 141, No 12 (2015), Pagination: 1252-1256Abstract
The present study was carried out at four sites. The spacing of site-I was 1.5m × 1.5m; site-II: 1.0m × 3.5m; site-III: 3.0m × 3.0m and site-IV: 4.0m × 4.0m at Solan, Himachal Pradesh. The maximum species diversity and basal area (BA) of grasses and herbs (56.65 cm2/m2 ) was at site-I having lowest plant spacing, with least basal area (BA) of shrub and woody regeneration (1.16 cm2/m2 ). Lantana camara and Murraya koenigii showed there presence at all the sites among shrubs, having dominance of Lantana camara at sites-I, -III and -IV. Apluda mutica, Chloris gayana and Chrysopogon montanus were present in all the sites among different grasses and herbs, however, Apluda mutica showed dominance at site-I and -III, while, Chrysopogon montanus dominated at site-II and -IV. Bidens pilosa dominated at site-I and -IV, while Erigeron annus was present at site-II and -III among herbs. Maximum similarity (60.00 %) between site-I and -IV was observed for grasses and herbs, however, for shrubs and woody regeneration, it (80.00 %) was observed between 3.0m × 3.0m (site-III) and 4.0m × 4.0m (site-IV) spacing.Keywords
Acrocarpus fraxinifolius, Spacing, Phytosociology.- Recent Advances in Understanding the Role of Growth Regulators in Plant Growth and Development in Vitro-I. Conventional Growth Regulators
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Affiliations
1 Division of Biochemistry, Indian Agricultural Research Institute, Delhi - 110012, IN
2 School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, IN
3 Department of Biotechnology, CGO Complex, Lodhi Road, New Delhi – 110053, IN
4 Indian Council of Forestry Research and Education, Dehradun, IN
5 Central Arid Zone Research Institute, Jodhpur – 342003, IN
1 Division of Biochemistry, Indian Agricultural Research Institute, Delhi - 110012, IN
2 School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, IN
3 Department of Biotechnology, CGO Complex, Lodhi Road, New Delhi – 110053, IN
4 Indian Council of Forestry Research and Education, Dehradun, IN
5 Central Arid Zone Research Institute, Jodhpur – 342003, IN
Source
Indian Forester, Vol 142, No 5 (2016), Pagination: 459-470Abstract
Growth regulators, a diverse array of organic compounds, are critical components in determining developmental pathways in plants. They interact at the cellular level to produce physiological and morphological effects. Our understanding about transport, metabolism and mode of action of growth regulators in plants has considerably increased in the recent years. Discovery of the chemicals that interfere with synthesis, transport and action of endogenous growth regulators have further improved our knowledge regarding the role of plant growth regulators (PGRs) in plant's growth and development. A number of PGRs are being used in plant cell, tissue and organ cultures for decades, while many of them have recently been discovered and tested for their effects in vitro. In this review, we attempted to summarize the remarkable progress that has been made over the past decades towards understanding PGRs. The progress is further improving our knowledge of the molecular mechanisms of their action, and beginning to explain how PGRs not only have direct influence on cellular growth, but also control various aspects of plant's growth in vivo as well as in vitro.Keywords
Abscisic Acid, Auxin, Cytokinin, Ethylene, Gibberellins, Plant Growth Regulators.References
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- Recent Advances in Understanding the Role of Growth Regulators in Plant Growth and Development in Vitro - II. Non-Conventional Growth Regulators
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Affiliations
1 Central Arid Zone Research Institute, Jodhpur – 342003, (Rajasthan), IN
2 School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, IN
3 Department of Biotechnology, CGO Complex, Lodhi Road, New Delhi, IN
4 Indian Council of Forestry Research and Education, Dehradun, IN
5 Division of Biochemistry, Indian Agricultural Research Institute, Delhi, IN
1 Central Arid Zone Research Institute, Jodhpur – 342003, (Rajasthan), IN
2 School of Agricultural Biotechnology, Punjab Agricultural University, Ludhiana, IN
3 Department of Biotechnology, CGO Complex, Lodhi Road, New Delhi, IN
4 Indian Council of Forestry Research and Education, Dehradun, IN
5 Division of Biochemistry, Indian Agricultural Research Institute, Delhi, IN
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Indian Forester, Vol 142, No 6 (2016), Pagination: 524-535Abstract
A diverse array of growth regulators interact at the cellular level to produce physiological and morphological effects on plant growth, morphology and yield. The five conventional growth regulators viz. auxins, cytokinins, gibberellins, abscisic acid and ethylene are being used in plant cell, tissue and organ cultures for decades, while many of them, like non-purine cytokinins, polyamines, jasmonates, brassinosteroids, oligosaccharides, sterols, phosphoinositosides, salicylic acid and systemins, have recently been discovered and tested for their effects in vitro. However, many have not yet been examined for their effects on in vitro growth and development of plants. In this review, we attempted to summarize the progress that has been made over the past two decades towards understanding the role of non conventional PGRs in plant growth and development.Keywords
Brassinosteroids, Jasmonic Acid, Oligosaccharides, Plant Growth Regulators, Polyamines, Salicylic Acid, Signal Peptides.References
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