This division was established to pursue applied research on silvicultural and forest management aspects. The activities of this division have been focused mainly on the development of nursery and planting techniques of various species, seed technology, seed ecophysiology, regeneration of forest species, assessment of silvicultural management systems, sustainable harvesting techniques of medicinal plants.
Studies on the effect of different level of seed collection on natural regeneration of Sal (Shorea robusta) in Chhattishgarh. (Externally funded)
Germination ecophysiology of two important tropical forest tree species : Schleichera oleosa and Pterocarpus marsupium.
Standardization of the techniques for germination, collection and maintenance of maximum viability of four important tropical species: Bridelia retusa, Sterculia urens, Boswellia serrata and Saraca indica.
A field study was conducted for assessing plant density, regeneration, coppice growth, woody perennial species and ground flora by laying out suitable vegetation quadrate in People Protected Area (PPA), Rehabilitation of Degraded Forest (RDF) and un protected forest area (UPF) at Udaipur Forest villages in Satna Forest Division and Narwar, Nipnia, Aintajhar, Singpur Forest villages, South Shahdole Forest Division (Madhya Pradesh), and Gadchiroli and East Nasik Forest Division (Maharashtra).
Nursery technology for Terminalia chebula, Strychnos nux-vomica and Strychnos potatorum, Azadirachta indica, Acacia catechu, Emblica officinalis, Pongamia pinnata, Albizia lebbeck, Pterocarpus marsupium and Emblica officinalis had been developed.
Seed pretreatment for better germination, maturation indicators for proper seed collection, and storage protocols are available for 12 species: Schleichera trijuga, Terminalia arjuna, Hardwickia binnata, Moringa oleifera, Holoptelea integrifolia, Sapindus laurifolia, Terminalia chebula Ablomoscus moscatus, Rauvolfia serpentina, Emblica officinalis, Bassia latifolia and Mimusops elengi.
Harvesting levels of different medicinal plants such as, Andorgraphis paniculata, Chlorophytum borivillium, Celastrus paniculata, Aspargus racemosus had been determined at different agroclimatic conditions of Madhya Pradesh.
Macro propagation protocol for mass multiplication of bamboo species viz. Bambusa tulda, B. vulgaris and Dendrocalamus membranaceus was standardized
Preliminary studies on seed technology of khair and bijasal had been performed.
Maximum root nodules (46.6/plant) were formed in Acacia nilotica on combined application of 12.5 ppm N, 50 ppm P and 50 ppm K.
Relative suitability index was prepared for species successful in degraded soil. Albizia. procera scoring 100% was emerged to be the most suitable species followed by Dalbergia sissoo and D. latifolia.
Three MPTS species namely Gmelina arborea, Azadirachta indica, and Leucenia leucocephala were found suitable for growing in semi arid region of central India. Significant genetic variation between different provenances was observed with respect to seed germination and growth parameters. Seed sources viz. Umaria, Shahdol (M.P.), Balaghat, Seoni (M.P.) and Shakti (MP) exhibited good growth performance and recommended for plantations.
Three clones of Populus deltoids (G-48, S7 C1 and 65/27) were found suitable for Jabalpur area. The highly productive clone 65/27 was recommended for cultivation in farmers field at Chhindwara and Jabalpur.
The rate of carbon sequestration was more in clear felling than in selection cum improvement silviculture system. Regeneration was better in areas of selection cum improvement system as compared to clear felled areas. In case of selection cum improvement trees were almost uniformly distributed over all GBH classes. In case of clear felling, soil pH, percentage of organic carbon and available NPK showed a decreasing trend.
No significant reduction in viability was observed in Acacia catechu (Khair) seeds stored at 2% moisture content at 0oC and 5oC for one year.
Germination was not decreased in Pterocarpus marsupium (Bijasal) seeds stored at 0oC and 5oC for one year.
Growing media having 80% organic component were found suitable for production of superior quality stock in root trainers. Sieve size of 3/11 holes per square cm helps for preparation of growing media that promotes better growth of seedlings in root trainers. Irrigation schedule of 2 times a day and seed sowing in the 1st or 2nd week of April gives appropriate planting stocks in root trainers at the end of growing season. Leaf compost prepared from locally abundant plant species such as lantana, subabul, palsh, neem and bamboos can be effectively used for production of root trainer seedlings. The findings will be useful for production of quality planting stock in root trainers of Acacia catechu, Bombax ceiba, Albizia libbeck, Dalbergia latifolia, Pongamia pinnata, Gmelina arborea, Azadirachta indica, Emblica officinalis and Pterocarpus marsiupium.
Significant influence of graded NAA doses on adventitious rhizogenesis was recorded in bamboo species. In Bambusa tulda and Bambusa vulgaris best rooting occurred in the summer season, which was enhanced by 56.5 % and 19.4 % over that in winter and rainy seasons, respectively. Overall, the potential of different bamboo species for adventitious rhizogenesis was found to be in the order: B. tulda> D. membranaceus> B. multiplex> B. vulgaris. The treatment with boric acid, NAA and IBA resulted in significantly superior overall adventitious rooting than water treated control.
Different management systems such as PPA, RDF have positive impact on plant density, regeneration and coppice growth. Plant density regeneration, coppice growth of woody perennials species and ground flora were better in the forests having Joint Forest Management programme as compared to the forest areas having no JFM programme.
Seeds of Terminalia chebula have physical dormancy and 7 days soaking and 2 days drying is the best treatment for germination. The seeds of Sambalpur origin was found to be best with respect to germination.
Maximum 48.24 cm and 44.33 cm seedling height was noted on combined application of 100 ppm nitrogen and 100 ppm phosphorus with a constant dose of 50 ppm potassium in Strychnos. Potatorum and Strychnos nux-vomica seedlings.
Treatments for better germination, maturity indices of seeds for proper collection and storage methodology were developed for 12 species: Schleichera trijuga, Terminalia arjuna, Hardwickia binnata, Moringa oleifera, Holoptelea integrifolia, Sapindus laurifolia, Terminalia chebula Abelmoscus moscatus, Rauvolfia serpentina, Emblica officinalis, Bassia latifolia and Mimusops elengi.
80% entire plants of Andorgraphis paniculata, 90% of fruits of Buchnania lanzan and 60% Asparagus racemosus plants can be harvested in JFM areas with maximum productivity without loss in regeneration.
80% of fruiting branches of Celastrus paniculata (Malkangani), 60% plants with roots of Asparagus racemosus (Satawar), 80 % of entire plants of Andrographis paniculata (Kalmegh) and 100% fruits of Eagle mormelos (Bael) in PPA areas can be harvested to sustain the regeneration and production of seeds/roots.
For further details, please contact :
Dr. Yogeshwar Mishra, Scientist F & Head,
Phone: +91 - 761- 2840007, 2744135 E-mail: email@example.com
Phone: +91 - 761- 2840007, 2744135