STATE FOREST RESEARCH INSTITUTE
Forest research in Tamil Nadu commenced in 1918 and the first Annual Research Report was published in 1919. Since then research activities are mainly focused on various thrust areas based on field requirements from time to time. Research Unit in Chennai formed much before Independence had carried out Research in the cultivation of important trees like Teak, Jack, Terminaliatomentosa, Terminaliapaniculata, Dalbergialatifolia, Gmelinaarborea, etc.
The thrust of current forestry research activities is on reducing pressure on natural resource by increasing productivity through genetic and silvicultural improvement, making available technical know-how for agro forestry, wasteland development, eco-restoration and conservation of forest eco-system.
With a view to increase availability of high quality planting material of economically important tree species for afforestation and reforestation of degraded forest and take up large scale tree cultivation in private lands, the research wing has established seed production areas, clonal seed orchards, seedling seed orchards and hedge stool in various research centres in Tamil Nadu.
Micro and macro propagation for economically important and fast growing species like teak, sandalwood, silver oak, Melia dubia, Ailanthus excelsa, Eucalyptus, Casuarina has been standardized and propagules are being given
RESEARCH THRUST AREAS
Tree Improvement |
Bio-diversity Conservation |
Agro forestry |
Environmental Management |
Forest Utilization |
Organic Tree Husbandry |
SoilNutrientManagement |
Silviculture |
Climate Change |
Restoration Ecology |
Afforestation |
Medicinal Plant |
I.TREE IMPROVEMENT
- Genetic Combing
- Progeny Trial
- Clonal Evaluation Trial
- Seed Orchard
II.BIO-DIVERSITY CONSERVATION
- Monoculture to Polyculture
- Sandal Nucleus Plot
- Population Dynamics Study
- Species Recovery Programme
III.MEDICINAL PLANT CONSERVATION
- Assemblage of Germplasm
- Creation of Plant Seed Centre
- Research on Seed Handling
- Package of Practice
IV.AFFORESTATION PROGRAMMES
- Wasteland Development and Agro forestry
- Coastal Afforestation with Shelterbelt
and Mangroves
- Assemblage of Native Fodder Species
- Energy Plantation
V.SOIL NUTRIENT MANAGEMENT
- Analysis of Forest soil
- Organic Farming
- Integrated Nutrient Management
VI.SILVICULTURE
- Introduction trial
- Pre- Sowing Seed Management
- Nursery Technology
- Vegetative Propagation
- Ideal Planting Techniques
- Espacement Trial
- Tree Architecture
- Research on Bamboo
VII.NTFP RESEARCH
- Sustainable Harvest Studies on
Medicinal Plants
- Tree Borne Oil Seeds
VIII.FOREST UTILISATION
- Post Harvest Timber Management
- Economic Appraisal of NTFP
Forest Produce.
IX.ENVIRONMENTAL MANAGEMENT
- Pollution Control Studies
- Bio-Remediation of Polluted Habitats
X.ORGANIC TREE HUSBANDRY
- Enhancing Bio-Productivity with Application of Organic Manures and Bio-Fertilizers
XI.RESTORATION ECOLOGY
- Study of Pollinators and Seed dispersers
XII.CLIMATE CHANGE
- Climate Change Management and Mitigating
Global Warming with Appropriate Carbon
Sequestration Technologies
RESEARCH CENTRES
State Forest Research Institute is having 54 centres spread across all the seven agro-climatic zones of Tamil Nadu. The distribution across agro climatic zone is given below
STATEMENT SHOWING THE DETAILS OF DISTRICT / TALUK WISE LOCATION OF RESEARCH CENTRES
Sl. No. |
District |
Taluk |
Range |
Centre |
Area in ha |
Agro -climatic zone |
I. Deputy Conservator of Forests, State Forestry Research Institute, Kolapakkam,Chennai – 600 127. |
||||||
1 |
Kancheepuram |
Chengalpet |
Vandalur |
Kolapakkam |
611.93 |
North Eastern zone |
2 |
Kattangulathur |
20.00 |
||||
3 |
Villupuram |
Tindivanam |
Cuddalore |
Marakkanam |
20.00 |
North Eastern Zone |
4 |
Agaram |
41.80 |
||||
5 |
Koonimedu |
20.00 |
||||
6 |
Cuddalore |
Chidambaram |
Killai |
3.00 |
||
7 |
Vellore |
Gudiyattam |
Vellore |
Virinjipuram |
33.00 |
|
8 |
Cuddalore |
Panrutti |
Vridachachalam |
Neyveli- A Block |
140.00 |
|
9 |
Neyveli- B Block |
20.70 |
||||
10 |
Chennai |
Kancheepuram |
FUO Range |
Vandalur |
- |
|
11 |
Coimbatore |
Mettupalayam |
FUO Range |
Mettupalayam |
- |
|
TOTAL |
910.43 |
|
||||
II. Deputy Conservator of Forests, Industrial Wood Research Division, Trichy. |
||||||
12 |
Trichy |
Srirangam |
Trichy |
Mukkombu |
5.70 |
Cavuery delta zone |
13 |
Pudukottai |
Kulathur |
Lingamalai |
43.04 |
||
14 |
Pudukottai |
Arimalam |
Pudukottai |
Arimalam |
96.00 |
Southern zone |
15 |
Trichy |
Manapparai |
Ammayapuram |
55.50 |
||
16 |
Perambular |
Udayarpalayam |
Jayakondam |
Managathy |
32.60 |
Cavuery delta zone |
17 |
Thanjavur |
Thiruvedimarudur |
Sholapuram |
20.00 |
||
18 |
Nagapattinam |
Srigalai |
Gopalasamuthram |
20.00 |
||
19 |
Dindigul |
Kodaikanal |
Kodaikanal |
Gundar |
34.00 |
High altitude and hilly zone |
TOTAL |
306.84 |
|
||||
Sl. No. |
District |
Taluk |
Range |
Centre |
Area in ha |
Agro -climatic zone |
III. Deputy Conservator of Forests, Agro Forestry Research Division, Madurai. |
||||||
20 |
Madurai |
Madurai – North |
Madurai |
Vembarali Bit-I &Bit II |
25.60 |
South zone |
21 |
Melur |
Melur |
Perumalmalai |
32.00 |
||
22 |
Ramanathapuram |
Ramanathapuram |
Ramanathapuram |
Thangachimadam |
18.90 |
South zone |
23 |
Numbukoil |
8.45 |
||||
24 |
Tuticorin |
Sathankulam |
Tirunelveli |
Pattakkarai |
31.50 |
Southern zone |
25 |
Dindigul |
Dindigul East |
Madurai |
Endalaparai |
3.00 |
Southern zone |
26 |
Kanayakumari |
Thovalai |
Nagercoil |
Pallakulam |
64.00 |
Hill Rainfall zone |
27 |
Virudhunagar |
Vathrap |
Srivilluputtur |
Pilavakal |
9.94 |
South eastern zone |
28 |
Sivagangai |
Sivagangai |
Sivagangai |
Melakkadu |
34.60 |
|
TOTAL |
(227.99)
|
|
||||
IV. Divisional Forest Officer, Modern Nursery Research Division, Dharmapuri. |
||||||
29 |
Dharmapuri |
Dharmapuri |
Dharmapuri |
Thoppur |
24.8 |
North western zone |
30 |
Harur |
Harur |
29.25 |
|||
31 |
Theni |
Theni |
Dindugal |
Valkaradu |
9.20 |
Sotuhern zone |
32 |
Pudukottai |
Keeranur |
Kalamavoor |
5.40 |
||
33 |
Villupuram |
Ulunderpet |
Kallakurichi |
Eddikal |
85.00 |
North eastern zone |
34 |
Kalakurichy |
Alwarmalai |
10.00 |
|||
35 |
Kancheepuram |
Tambaram |
Perungalathur |
Perungalathur |
9.75 |
North eastern zone |
36 |
Dharmapuri |
Pappireddipatty |
Harur |
Ramanahalli |
19.00 |
North Western Zone |
37 |
Kathiripuram |
23.50 |
||||
38 |
Krishnagiri |
Denkanikotta |
Denkanikotta |
Maragatta |
38.00 |
High altitude and Hilly Zone |
39 |
Hosur |
Gopachandram |
1.00 |
|||
40 |
Tiruvannamalai |
Polur |
Chengam |
Jamunamarathur |
75.00 |
North Eastern Zone |
41 |
Chengam |
Melchengam |
40.00 |
|||
|
|
|
Total |
|
369.9 |
|
Sl. No. |
District |
Taluk |
Range |
Centre |
Area in ha |
Agro -climatic zone |
|
V. Conservator of Forests (Genetics), Coimbatore |
|||||||
42 |
Coimbatore |
Mettupalayam |
Coimbatore |
Pethikottai |
35.20 |
Western Zone |
|
43 |
Coimbatore |
Coimbatore |
1.00 |
||||
44 |
Mettupalayam |
Mettupalayam |
8.20 |
||||
|
|
|
|
|
|
|
|
45 |
|
Udumalpet |
Pollachi |
Amaravathy |
9.98 |
High Altitude and hilly zone |
|
46 |
Pollachi |
Sircarpathy&Topslip |
129.23 |
||||
47 |
Nilgiris |
Udhagai |
Ooty |
Governorshola |
130.00 |
High Altitude and hilly zone |
|
48 |
Udhagai |
Aramby |
12.00 |
||||
49 |
Udhagai |
Brookhampton |
2.00 |
||||
50 |
Kothagiri |
Kotagiri |
20.51 |
||||
51 |
Erode |
Sathiamangalam |
Bhavanisagar |
Bhavanisagar |
7.00 |
Western zone |
|
52 |
Vilamundi |
50.00 |
|||||
53 |
Vadavalli |
20.00 |
|||||
54 |
Salem |
Valapadi |
Salem Research |
Seshanchavadi |
36.00 |
North Western Zone |
|
55 |
Erode |
Bhavani |
Erode Research |
Varattupallam |
76.00 |
||
56 |
Salem |
Salem |
Salem – Genetics |
Kurumbapatty&Hasthampatty |
2.50 |
||
57 |
Omalur |
Lokkur |
18.50 |
||||
TOTAL |
558.12 |
|
|||||
GRAND TOTAL |
2373.28 |
|
|||||
TOTAL AREA OF ALL RESEARCH CENTRES = 2373.28 Ha.
TREE IMPROVEMENT
Genetic combing
It is essential to select different candidate plus tree species for different characteristics. Seedlings raised from these species will have superior genetic characteristics. Seeds are being collected from the plus trees to raise high quality seedlings. Work of marking GPS location of each CPT was continued and about 500 CP trees thus identified with reference to different species.
GENETIC COMBING: -Candidate Plus Trees (CPT’s) of the following species have been identified for collection of good quality seeds.
1 |
Acacia ferruginea |
8 |
Albizzialebbeck |
15 |
Calophylluminophyllum |
2 |
Acacia leucophloea |
9 |
Alstoniascholaris |
16 |
Canariumstrictum |
3 |
Acacia mearnsii |
10 |
Artocarpushirsutus |
17 |
Cassia fistula |
4 |
Acacia nilotica |
11 |
Azadirachtaindica |
18 |
Casuarinajunghuhniana |
5 |
Aeglemarmelos |
12 |
Bassialatifolia |
19 |
Couroupitaguianensis |
6 |
Ailanthus excelsa |
13 |
Boswelliaserrata |
20 |
Crataeva magna |
7 |
Ailanthus malabaricum |
14 |
Brideliaretusa |
21 |
Dalbergialatifolia |
22 |
Derris indica |
34 |
Lagerstroemia lanceolata |
46 |
Sapindusemarginatus |
23 |
Dilleniapentagyna |
35 |
Meliadubia |
47 |
Shoreatalura |
24 |
Eucalyptus globulus |
36 |
Millingtoniahortensis |
48 |
Sterculiaurens |
25 |
Eucalyptus grandis |
37 |
Mimusopselengi |
49 |
Strychnosnux-vomica |
26 |
Feroniaelephantum |
38 |
Mitragynaparviflora |
50 |
Tamrindusindica |
27 |
Gmelinaarborea |
39 |
Phyllanthusemblica |
51 |
Tectonagrandis |
28 |
Gmelinaarborea |
40 |
Pithecellobiumdulce |
52 |
Terminaliaarjuna |
29 |
Hardwickiabinata |
41 |
Populusdeltoides |
53 |
Terminaliabellarica |
30 |
Holopteleaintegrifolia |
42 |
Premnatomentosa |
54 |
Terminaliacattappa |
31 |
Hydnocarpuspentandra |
43 |
Pterocarpusmarsupium |
55 |
Terminaliachebula |
32 |
Jatrophacurcas |
44 |
Pterocarpussantalinus |
56 |
Toonaciliata |
33 |
Khayasenegalensis |
45 |
Santalum album |
57 |
Ziziphusjujuba |
Red Sander at Seshanchavady
Melia dubia
Teak – Trichy
SEEDLING SEED ORCHARDS FOR THE FOLLOWING SPECIES ARE BEING ESTABLISHED.
1 |
Acacia chundra |
12 |
Chloroxylonswietenia |
23 |
Pterocarpussantalinus |
2 |
Acacia mearnsii |
13 |
Derris indica |
24 |
Santalum album |
3 |
Aeglemarmelos |
14 |
Eucalyptus citriodora |
25 |
Sapindusemarginatus |
4 |
Ailanthus excelsa |
15 |
Eucalyptus globulus |
26 |
Simaroubaglauca |
5 |
Albiziaamara |
16 |
Eucalyptus grandis |
27 |
Swieteniamacrophylla |
6 |
Albizialebbeck |
17 |
Eucalyptus tereticornis |
28 |
Swieteniamahagony |
7 |
Artocarpusintegrifolia |
18 |
Feroniaelephantum |
29 |
Syzygiumcuminii |
8 |
Azadirachtaindica |
19 |
Gmelinaarborea |
30 |
Tamarindusindica |
9 |
Bassialatifolia |
20 |
Holopteleaintegrifolia |
31 |
Tectonagrandis |
10 |
Casuarinajunghuhniana |
21 |
Melaleucaalternifolia |
32 |
Terminaliachebula |
11 |
Casuarinakapankuppang |
22 |
Meliadubia |
|
|
CLONAL SEED ORCHARDS FOR THE FOLLOWING SPECIES ARE BEING ESTABLISHED
1 |
Acacia mangium hybrid |
5 |
Derris indica |
9 |
Santalum album |
2 |
Ailanthus excelsa |
6 |
Eucalyptus globulus |
10 |
Sapindusemarginatus |
3 |
Casuarinaequisetifolia |
7 |
Meliadubia |
11 |
Simaroubaglauca |
4 |
Casuarinajunghuhniana |
8 |
Pterocarpussantalinus |
12 |
Tectonagrandis |
GERMPLASM BANK FOR THE FOLLOWING SPECIES ARE BEING CREATED
1 |
Bambusabalcooa |
4 |
Bambusa vulgaris |
7 |
Santalum album |
2 |
Bambusanutans |
5 |
Casuarinajunghuhniana |
8 |
Tectonagrandis |
3 |
Bambusatulda |
6 |
Pinuspatula |
|
|
SEED STAND /SEED PRODUCTION AREAS FOR THE FOLLOWING SPECIES ARE BEING ESTABLISHED
1 |
Acacia auriculiformis |
13 |
Casuarianaequisetifolia |
25 |
Khayasenegalensis |
2 |
Acacia mangium |
14 |
Casuarinajunghuhniana |
26 |
Leucaenaleucocephala |
3 |
Aeglemarmelos |
15 |
Casuarinajunghuhniana (Kapankupang) |
27 |
Meliadubia |
4 |
Ailanthus excelsa |
16 |
Dalbergialatifolia |
28 |
Mitragynaparviflora |
5 |
Albiziaamara |
17 |
Delonixelata |
29 |
Populusdeltoides |
6 |
Albiziarichardiana |
18 |
Derris indica |
30 |
Pterocarpusmarsupuim |
7 |
Albizzialebbeck |
19 |
Eucalyptus acmenoides |
31 |
Pterocarpussantalinus |
8 |
Azadirachtaindica |
20 |
Eucalyptus citriodora |
32 |
Rauwolfiaserpentina |
9 |
Bassialatifolia |
21 |
Eucalyptus grandis |
33 |
Sapindusemarginatus |
10 |
Caesalpiniasappan |
22 |
Eucalyptus siberiana |
34 |
Simaroubaglauca |
11 |
Calamusrotang |
23 |
Feroniaelephantum |
35 |
Tectonagrandis |
12 |
Calophylluminophyllum |
24 |
Gmelinaarborea |
36 |
Terminaliachebula |
SSOs, CSOs and Seed stands formed / being maintained from 2010 onwards is furnished below
SSO of Meliadubia – Varattupallam
SSO - Sapindusemarginates- Vellore
CSO Tectonagrandis at Lingamalai
Clonal Evaluation trial (Teak) – Melchengam
Meliadubia (Thoppur)
BIO-DIVERSITY CONSERVATION
More than 30 plus trees were selected in Tamil Nadu which had high heartwood, oil and santalin content, during genetic combing of sandalwood in the year 1982-83 Germplasm bank consisting of 35 plus tree of sandalwood was established at Salem Research Centre during 1983-84. This is one of the very first Sandal Clonal Bank establishedin India.
Improvement of Sandal through grafting and creating Sandal Germplasm Bank
The heart wood being the most valuable part of sandal wood clonal Germplasm Bank of sandal wood were established by taking scion from identified plus tree having high proportion of Heart wood, oil and santalin content and grafted seedlings were raised for establishing clonal germplasm bank of sandal.
Evaluation of sandal with respect to host association
Well established Sandal with Casuarina as host
MEDICINAL PLANT CONSERVATION: - 380 species of medicinal plants (Aliyar medicinal plants garden, Coimbatore) have been assembled and one Siddha Doctor is engaged for free medical consultancy to explain the importance of medicinal plants to the visitors.Demonstration plots were established in Research and Extension Centre's.
Medicinal Plant Garden at Aliyar Research centre
Medicinal Plants Garden at SFRI
Mass multiplications of medicinal plants which are in high demand are as follows:-Bixaorellana, Caesalpiniasappan, Cissusquadrangularis, Santalum albumandWithaniasomnifera.
|
|
Cissus quadrangularis Withania somnifera
Research on Coastal area afforestation :
Tree species suitable for coastal areas as bio-shields were identified as Acacia auriculiformis, Erythrinaindica, Casuarinaequisetifolia, Casuarinajunghuhniana, Hibiscus tiliaceus, Cassia siamea, Kaya senegalensis, Salvadorapersica could be produced in forest nurseries. These can be used to form plantation in coastal areas for wind breaks and increasing greenery. Prosopis has been tried for afforestation in lantana infested (now removed) coastal areas during 2014-15 by planting Thespesiapopulnea, Dalbergiasissoo, Hibiscus teliaceous, Borassusflabellifer, Tecomellaundulata, etc. in coastal area at Thangachimadam (R) Centre of Rameswaram (R) Range.
Research on Sand dune stabilization:
For stabilization of sand-dunes and to improve the quality of soil, suitable tree species like Bassialatifolia, Derris indica, Polyalthiapendula, Eucalyptus species, Coccolobauvifera, etc. were planted. The same programme is being continued.
Research on afforestation of problem site:
Experiments have been laid with various species in problem sites viz. saline-alkaline soil, sheet rock and bouldary sites, magnesite mine dumps, etc. and the suitability of various species is being assessed. Work of afforestation in sheet-rock and boulder areas mostly with Ficus species was continued in different areas both inside and outside research centres. Appropriate species and techniques for problem soil afforestation especially rocky areas, mine-spoil areas, etc. will be identified for transfer of technology to the Forest Department.
Ficusbenghalensis at Kurumbapatti RF
Ficus species
Ficus species in Ammayapuram
Research on Fuelwood :
Around 30 species were selected and tried for production of biomass and fuel wood under different espacement and protective irrigation regime. It was previously found that Casuarina, Albizziarichardiana, Hibiscus tiliaceous, Samaneasamanare suitable for energy production in gasifier. During 2014-15, Acacia auriculiformis, Acacia mangium, Leucenaleucocephala, Prosopisjulifloraetc. were tried for electricity production in bio-gasifier to see their suitability. Similarly different species (grass, bamboo, etc.) were tried for briquette making to see their efficacy in terms of calorific value, etc. During 2015-16 Morusalba, Azadirachtaindica, Albiziaamara, Acacia hybrid, Leuceanaleucocephala, etc. have been taken up with different espacement trials.
Raising energy plantation of suitable species of Private farmers land at Rameswaram (R) Range area
SOIL NUTRIENT MANAGEMENT
ANALYSIS OF FOREST SOIL
Any soil that has developed under the influence of a forest cover, commonly referred as forest soil.
Forest soil posses distinct characters than the normal soil even though they have developed from the common parent material and under same climatic conditions.
- Unique effects of deep rooting by trees
- Specific organism associated with forest vegetation
- litter layer and leaching promoted by the products of its decomposition of soil genesis
About 500 soil samples, collected from all the districts, were analysed for N, P, K, Ca, Mg and Micronutrients like Zn, Cu, Mo and Bo etc. The irrigation water samples sent by the farmers were also analysed for Electric Conductivity (EC) and Residual Sodium Concentration (RSC) etc. in Soil science laboratory, State Forest Research Institute, Kolapakkam, Chennai
SOIL SCIENCE LABORATORY, STATE FOREST RESEARCH INSTITUTE
SILVICULTURE
Introduction trials
Research plots are there in various agro-climatic zones of Tamil Nadu. Plant species, which are not found in certain areas, have been raised in introduction trials in our research centres. Introduction trial of Prosopis cineraria, Adina cordifolia, Adansoniadigitata, Salvadorapersica, Brideliaretusa, etc. was taken up. Introduction of Thespesiapopulnea, Dalbergiasissoo, Hibiscus teliaceous, Borassusflabillifer,etc. has also been undertaken in coastal area infested with Prosopisjuliflora.
NURSERY EXPERIMENTS
Different culling methods, Bio-nutrient – Bio-fertilizer inoculation, juvenile – adult relationships were carried out in the nursery stages that paved way for ensuring enhanced bio-mass productivity.
Santalum album
Tectona grandis
Melia dubia
Caesalpinia sappan
Putranjiva roxburghii
Madhuca longifolia
Rauwolfia serpentina
Aloe vera
Ocimum basilicum
Adansonia digitata
APPLICTION OF BIO – FERTILIZER AND BIO–NUTRIENTS FOR NURSERY
RECOMMENDED DOSAGE OF BIO – NUTRIENTS. |
||||
Size of Poly bags |
Vermicastings |
VAM |
Azospirillum/ Rhizobium |
Phospho Bacteria |
1 |
2 |
3 |
4 |
5 |
10x20 Cm. |
15 Kg. |
7 Gm. |
3 Gm. |
3 Gm. |
13x25 Cm. |
25 Kg. |
10 Gm. |
5 Gm. |
5 Gm. |
16x30 Cm. |
35 Kg. |
15 Gm. |
6 Gm. |
6 Gm. |
Conservation of Endangered species
Action has been taken for propagation of the following endangered plant species.
- i) Syzygiumtravancoricum
- ii) Illexgardeneriana
iii) Hydnocarpusmacrocarpa
- iv) Saraca asoca
- v) Elaeocarpus munronii
- vi) Rauvolfiaserpentina
Mass multiplication of medicinal plants which are high in demand and retrieval of RET species such as Elaeocarpusmunroniihave been taken up. Standardization of nursery technology for untried RET species (including hard seed coat species) was also taken up for Litseachinensis, Guaiacum officinale, Crescentiacujete, etc.Germination enhancement was tried in Santalum album, Meliadubia, etc.
Under Standardization of nursery technology for untried RET species, work on Elaeocarpusvenustus, Garcinagummigutta, Bentickiacondapanna,Ardisiarhombioidacea, Apodytes dimidiate, Cinnamomumlausonii, Cinnamomumstocksii, Glochidionellipticum, Litsea floribunda, Litseaglabrata, Scolopiacrenata, SyzygiumdensiflorumandSyzygiumlanceolatumwas done.
In addition, vegetative propagation was done in Garciniagummi-gutta, Hydnocarpus alpine, Elaeocarpusvenustus, Elaeocarpusmunronii, Kingiodendronpinnatum, Eugenia singampattianaandSyzygiumgambleanummostly from southern Western Ghats.
Under retrieval of Shola species, work was taken up in the following species
- Arisaemaleschenaultii
- Berberisnilghiriensis
- Justicianilgherrensis
- Rubiaglomeratus
- Elaeocarpusblascoi
- Ficuslaevis
- Ardisiarhombioidacea
- Apodytesdimindiata
- Cinnamomumlausonii
- Cinnamonrumstocksii
- Glochidioncllipticum
- Listsea floribunda
- Listseaglabrata
- Scolopiacrenata
- Syzygiumdensiclorum
- Syzygiumlanceolatum
SPECIES RECOVERED (RET): - Cotoneaster buxifolius, Crotalaria longipes, Hildegardiapopulifolia, Madhucalongifolia, Mappiafoetida, Micheliachampaca, Michelianilagirica, Mimusopselengi, Putranjivaroxburghii, Santalum album and Syzygiumtravancoricum
SAUCER PLANTING TECHNIQUE
To assess the advantage of growing trees around the perimeter of the Saucer of 3 meter dia with 15 cm mid-depth, which can hold 1000 litre per saucer for 2” rainfall, experiments were undertaken with Eucalyptus, Casuarina and Bamboo species.
400 Plants / Ha.
200 saucer / Ha.
1000 litre of water / Saucer
2 Lakh litre of water / Ha. Impounded
Noticed 50% increase in the yield
1000 litres of water is impounded per Saucer for 2” rainfall at SFRI
1000 litres of water is impounded per Saucer for 2” rainfall at SFRI
RESEARCH ON BAMBOO
45Bamboo species were identified for planting in Tamilnadu. Among these B.nutans, B.tulda, B.balcooa, B.vulgaris are found suitable for profitable cultivation. It is proposed to collect and assemble another 10 Bamboo species at the Bambusetum at Amravathi during 2016-17.
Bamboo setum at Amaravathy Research Centre
Bamboo has been used as a reinforcement material partially replacing steel in cement concrete and structure is under evaluation for its strength and durability. Bamboo reinforced bus shelter using bamboo with RCC as also bamboo composites has been designed for new trial during 2014-15. The cost of various bamboo products is less than comparable products. To take an example for a ‘Slab’ of dimensions 90cm X 90 cm X 7.5 cm, Cost of slab with iron rods as reinforcement is Rs. 464 while that of bamboo is Rs. 386 (16.73% reduction in cost). Model eco-friendly bus shelter with bamboo has been erected showcasing use of bamboo to the public.
Bamboo Bus shelter
Slab
PRECAST COMPOUND PILLAR
NTFP RESEARCH
OIL ANALYSIS IN DIFFERENT SEEDS
Naturally all seeds have its own oil, but it will be varying from 1% to above 70%. Some of them edible and some are inedible. Here we analysed 60 species, their results are shown in table.
Sl. No |
Species Name |
Oil percentage with respect to Seed |
1 |
Abrusprecatorious |
4.75 |
2 |
Acacia auriculiformis |
4.75 |
3 |
Acacia ferruginea |
6.08 |
4 |
Acacia leucophloea |
4.14 |
5 |
Acacia nilotica |
9.87 |
6 |
Albizziaamara |
4.17 |
7 |
Albizzialebbeck |
4.75 |
8 |
Anacardiumoccidentale |
13.42 |
9 |
Anonasquamosa |
15.77 |
10 |
Anogeissuslatifolia |
6.3 |
11 |
Argemonemexicana |
27.07 |
12 |
Azadirachtaindica |
18.8 |
13 |
Bassialatifolia |
35.1 |
14 |
Bauhinia variegata |
2.8 |
15 |
Bomboxceiba |
18.64 |
16 |
Caesalpiniacoriaria |
18.64 |
17 |
Brideliaretusa |
6.08 |
18 |
Caesalpiniapulcherrima |
4.77 |
19 |
Caesalpiniasappan |
14.32 |
20 |
Calophylluminophyllum |
33.77 |
21 |
Canariumstrictum |
9.43 |
22 |
Cassia fistula |
10.3 |
23 |
Cassia siamea |
8.7 |
24 |
Ceibapentandra |
42.64 |
25 |
Dalbergialatifolia |
3.5 |
26 |
Delonixregia |
6.81 |
27 |
Derris indica |
17.8 |
28 |
Embilicaofficinalis |
13.6 |
29 |
Eucalyptus citriodora |
16.8 |
30 |
Eucalyptus tereticornis |
19.4 |
31 |
Hardwickiabinata |
9.81 |
32 |
Holopteleaintegrifolia |
12.33 |
33 |
Hopeawightiana |
2.82 |
34 |
Jacaranda mimosofolia |
37.7 |
35 |
Jatrophacurcas |
36.95 |
36 |
Kaya anthothica |
10.05 |
37 |
Kaya nayasica |
51.36 |
38 |
Leucaenaleucocephala |
6.67 |
39 |
Mahavilvam |
26.55 |
40 |
Mallotusphilippensis |
8.89 |
41 |
Mangiferaindica |
4.46 |
42 |
Meliaazaderach |
3.5 |
43 |
Meliadubia |
9.15 |
44 |
Moringa oleifera |
21.83 |
45 |
Mimusopselengi |
14.57 |
46 |
Murryakoengii |
0.397 |
47 |
Myristicafragrans |
23.6 |
48 |
Peltophorumferrugineum |
1.0 |
49 |
Polyalthialongifolia |
9.33 |
50 |
Pterocarpussantalinus |
0.987 |
51 |
Samaneasaman |
0.95 |
52 |
Santalum album |
26.6 |
53 |
Simaroubaglauca |
27.1 |
54 |
Strychnosnuxvomica |
3.84 |
55 |
Strylosanthushamata |
7.4 |
56 |
Syzygiumaromaticum |
20.215 |
57 |
Tamarindusindica |
5.7 |
58 |
Tectonagrandis |
13.1 |
59 |
Terminaliaarjuna |
0.851 |
60 |
Terminalia bellarica |
37.5 |
FOREST UTILIZATION
Research on species suitability for Timber, Plywood & Veneer :
Plywood and Veneer are in more demand due to their wide usage. It is better to use them rather than traditional timber species having long rotation period. So experiments are being carried out with Acacia hybrid, Silver oak, Hopeaparviflora, Alstoniascholaris, Dysoxylummalabaricum, Kaya senegalensis, Ailanthus excelsa, Albiziafalcatoria, Heveabraziliensis, Ailanthusmalabaricum for profitable cultivation in Research Centres and in private lands. During 2014-15, immature timber of different species such as Anthocephaluscadamba, Gmelinaarborea, Albizzialebbeck, Pterocarpusmarsupium, Lanneacoromandelica, etc have been seasoned and are being tested for wood properties.
Further studies on wood properties, their suitability for wood products, plywood/ veneer, etc. was taken up with the assistance of organisations like IWST. Samples of Kaya senegalensis,Meliadubia, Lanneacoromandelica, Anthocephaluscadamba, Gmelinaarborea, Artocarpusintegrifolia, Albi
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from 01 - 04 - 2017 / Last Update On 25 - 04 - 2022