V. K. Dhawan , S. R. Joshi , Isha Rana

Abstract

Hundreds of trees are protected as living natural monuments and are associated with wisdom and immortality in India. In Uttarakhand, some trees hold special cultural and religious significance like peepal, banyan, mango etc. It was at the International Forestry Conference at Rome in 1926 that Protection of Natural Features was discussed. In 1929 Sir H.G.Champion, Silviculturist, Forest Research Institute mooted the idea of preservation of elite trees along with establishment of Preservation Plots and resolution No. 22 was passed. In 1951 Seth distinguished 3 types of preservation plots. By the time the country became independent, the subject of Protected trees appeared to have fallen into neglect. In 1958, Bhadran, however, gave the first comprehensive account of Giant Trees of India including trees girth of more than 100 inches at breast height. The growth of trees depends on many factors like seed origin/parent material, inheritance characters, edaphic, climatic etc. Growth of trees has found to be more in Tropical Wet evergreen/Semi evergreen forests than trees in other forest type. In 2007-08, authors from Silvicultural Division of Forest Research Institute have visited Preservation Plots of Uttarakhand and adjoining Shiwalik forests of Uttar Pradesh and surveyed Protected Trees which still have markings on their stem. Fresh enumeration was also done at sites and presented in the present paper. It was concluded from the study that due to global warming and intense biotic pressure, regeneration has found to be abnormal. Increased biotic pressure threatened some existing species. There is need to examine the causal inhibitor factors responsible for establishment of regeneration and elimination of some species.

Keywords

Protected Trees, Preservation Plots, Global Warming, Biotic Pressure

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S. K. Aggarwal , V. K. Dhawan

Abstract

The harvesting and marketability of bamboo culms has been discussed as a case study and the bamboos if properly managed can yield a good amount of revenue to the grower.

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S. K. Aggarwal , V. K. Dhawan

Abstract

Neem is a very valuable multipurpose farm forestry tree. After chemical analysis its constituents have been of immense medicinal value other than their commonly known uses.

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S. K. Aggarwal , P. Khullar , V. K. Dhawan , S. R. Joshi

Abstract

Bamboos are widely used as a short rotation crop in India. Bamhusatulda is one of the high yieldlng species for pulp and paper manufacture. A study was conducted at Seonthi Research Range, Kurukshetra, Haryana in collaboration with Haryana Forest Department, to study the effect of plantation season and irrigation on the grrowth and yield of Bamhusatulda. The study reveals that, yield of bamboo can be increased by 30-60% if the bamboo is planted during the spring season, followed by irrigation. In the arid and semi-arid parts of the Northern India. This, in turn, can lead to better economic returns.

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B. S. Beniwal , V. K. Dhawan

Abstract

The paper presents a study on the germination behaviour of pulped as well as depulped seeds of Anthocephalus chinensis and the effect of different soil media and watering methods on the germination and growth of seedlings. The results indicate that sowing of pulped seeds give poor germination compared to depulped seeds. Further, use of soil media and watering with the help of Can or fine Sprayer gives maximum germination.

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B. S. Beniwal , S. R. Joshi , V. K. Dhawan

Abstract

Tbe paper presents the results of an experiment conducted at Forest Research Institute, Dehra Dun to see the effect of shade and mulch on the germination of Adina cordifolia. The results after analysis of the data indicate that use of mulch gives quick and higher germination of seed.

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B. S. Beniwal , V. K. Dhawan , S. R. Joshi

Abstract

The paper presents the results of an experiment conducted at Forest Research Instltute, Debra Dun to see the effect of shade and mulcb on the germination of Toona ciliata. The results after analysis of the data indicate that seed sown under shade gives quick and higher germination.

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B. S. Beniwal , V. K. Dhawan , S. R. Joshi

Abstract

The paper presents the results of an experiment conducted at Forest Research Institute, Debra Dun to see the effect of open, shade and mulch on the germination of Chukrasia velutina seeds. The results after analysis of the data indicate that use of mulch produces maximum number of seedlings and gives quicker germination.

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V. K. Bahuguna , V. K. Dhawan , B. D. Pant

Abstract

In this communication results of an experiment to develop the vegetative propagation techniques through application of growth hormones are discussed. The results showed that the application of 200 ppm concentration of Indole Butyric Acid for 24 hrs. is best sutable for promoting ischolar_maining of branch cuttings of Woodfordia frutlcosa.

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V. K. Bahuguna , Pyare Lal , V. K. Dhawan

Abstract

Tbe paper presents the results of an investigation carried out at the Brandis Road Nursery of Silviculture Branch, Forest Research Institute and Colleges, Dehra Dun for standardization of best combination of methods of sowing and optimum irrigation schedule for the production of maximum healthy seedlings of Eucalyptus FRI-4. On the analysis of data, collected during the course of experiment, the quantity of seed required for raising plantation of this species in the field is also calculated. Similarly requirement of seed at the nursery stage is also determined. The results of this experiment indicate that broadcast method of sowing with twice-a-day irrigation proves to be the best combination.

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