Uniyal, D. P.

• Polyembryony in Oroxylum indicum Vent.

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Authors

V. K. Sharma , Parveen , D. P. Uniyal , Prabha Bisht

Source

Indian Forester, Vol 130, No 6 (2004), Pagination: 825-828

Abstract

No abstract

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• Polyembryony in Oroxylum indicum Vent.

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Authors

V. K. Sharma , Parveen , D. P. Uniyal , Prabha Bisht

Source

Indian Forester, Vol 130, No 7 (2004), Pagination: 825-828

Abstract

No abstract

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• Canker and Dieback of Acacia nilotica Seedlings in Nursery

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Authors

Kamla Uniyal , N. S. K. Harsh , D. P. Uniyal , Sanjay Verma

Source

Indian Forester, Vol 130, No 1 (2004), Pagination: 95-100

Abstract

An outbreak of a new canker and dieback disease was recorded in Acacia nilotica seedlings. The causal organism was identified as Fusarium lateritium f. sp. acaciae f. sp. nov. and perithecial stage belongs to Gibberella. The disease was controlled by three sprays of mixture of Carbendazim and Copper oxychloride and mixture of Carbendazim and Dithane M-45.

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• Vulture Sightings at Corbett Tiger Reserve, Uttaranchal

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Authors

Vinod Khanna , D. P. Uniyal , P. Padmanabhan

Source

Indian Forester, Vol 129, No 8 (2003), Pagination: 1049-1050

Abstract

No abstract

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• Variation and Association Analysis among Growth Traits in Half-sib Progenies of Pinus roxburghii Sarg. Plus Trees

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Authors

K. C. Chauhan , D. P. Uniyal , M. S. Kanwar

Source

Indian Forester, Vol 128, No 9 (2002), Pagination: 1009-1020

Abstract

To know the genetic worth of the plus trees and association among different traits, one year old half-sib progenies of 48 plus trees were evaluated at Nauni during the year, 2000. Highly significant variation in all the traits was noted except for number of stomata. Studies on genetic coefficient of variation, heritability and genetic advance showed that a large portion of phenotypic variability was genetic and highly heritable for the total chlorophyll content, needle diameter and needle cross-sectional area. High heritability estimates were accompanied with high genetic gain for total chlorophyll content and needle cross-sectional area, suggesting the additive gene control for the inheritance of these traits. Collar diameter showed positive and highly significant correlation with seedling height and needle length.

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• Provenance Variation in the Specific Gravity of Wood of Chir Pine (Pinus roxburghii Sarg.)

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Authors

D. P. Uniyal , S. K. Verma , S. K. Sharma , V. K. Sharma

Source

Indian Forester, Vol 128, No 12 (2002), Pagination: 1295-1301

Abstract

Provenance variation in specific gravity of wood of 23 provenances of Chir pine (Pinus roxburghii Sarg.) belonging to 4 States viz. Himachal Pradesh, Jammu &Kashmir, Uttar Pradesh (now in Uttaranchal) and Arunachal Pradesh covering the geographical range between 27ο30' N to 35ο N, Longitude 75ο 20' E to 92ο 30' E and altitude 575 m to 2,200 m has been reported. These studies were carried out on 16-years-old trees growing in a field trial laid out under Indo-Danish Project on Seed Procurement and Tree Improvement (lDPSPTI) in 1981 at New Forest Campus, Dehra Dun, (Alt. 640m Lat. 30ο 20' 40ο N, Long. 78ο 0' and R.F. 216 cm). Significant differences (P

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• A Preliminary Study on the Air-layering in Acacia nilotica (L.) Del. Var. Indica

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Authors

S. K. Sharma , S. K. Verma , D. P. Uniyal

Source

Indian Forester, Vol 128, No 12 (2002), Pagination: 1376-1378

Abstract

No abstract

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• Clonal Variation in Rooting Responses of Juvenile Cuttings of Chir Pine (Pinus roxburghii Sarg.)

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Authors

D. P. Uniyal , S. K. Verma , Anita Chauhan

Source

Indian Forester, Vol 127, No 9 (2001), Pagination: 1012-1018

Abstract

The paper summarizes the results of ischolar_maining of juvenile cuttings of Chir Pine (Pinus roxburghii Sarg.). Cuttings emanating from 9 clones of P. roxburghii. (UPTSB-14 (Bhasla), HPSNR-5 (Nurpur), UPBER-5 (Berinag), UPKAL-10 (Kaligarh), UPPAT-I094 (Patwadangar), UPTSS-3 (Sikanderdbarl, UPDNH-770 (Dhanari), UPBER-368 (Berinag) and UPDNH-81 (Dhanari) were treated with different concentrations of IBA viz. 1000 ppm, 2000 ppm, 3000 ppm and 4000 ppm and planted in vermiculite under mist condition. Significant differences in ischolar_maining percentage and other ischolar_main parameters were observed between the clones. Among the four concentrations of IBA tried, 4000 ppm proved to be the best. 100% ischolar_maining was observed in three clones viz. UPTSB-14, UPKAL-10 and UPPAT-1094.

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• Population Dynamics of Arbuscular Mycorridzal Fungi in Dalbergia sissoo Roxb

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Authors

Kamla Uniyal , D. P. Uniyal

Source

Indian Forester, Vol 126, No 7 (2000), Pagination: 782-787

Abstract

AM fungi associated with Dalbergia sissoo were assessed for their qualitative and quantitative distribution from nine localities of Uttar Pradesh. A total of 17 species of Glomus, five species of Scutellospora, six species of Sclerocystis, four species of Acaulospora and two species of Gigaspora were recorded. The frequency of species varied from two to twenty. Among the genera, Glomus was to be the most common followed by Acaulospora, Sclerocystis and Scutellospora.

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• Identification of Provenances Based on Leaf Morphology in Tectona grandis

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Authors

M. S. Rawat , D. P. Uniyal , S. L. Sharma

Source

Indian Forester, Vol 124, No 4 (1998), Pagination: 248-251

Abstract

The natural zone of Teak is divided into three areas e.g. Myanmar, Laos and Thailand; Indonesia and third is Indian peninsula which is considered the centre of diversity also. Keen study of leaf morphology has revealed certain diagnostic characters/genetic markers on the basis of which different provenances/sources can easily be identified.

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• Mycoflora of Neem Seeds

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Authors

Kamla Uniyal , D. P. Uniyal

Source

Indian Forester, Vol 122, No 5 (1996), Pagination: 423-427

Abstract

Mycofora associated with the seeds of neem, Azadirachta indica from different sources is reported. Six fungal genera representing Fusarium, Aspergillus, Penicillium. Cephalosporium, Alternaria and Pythium, apart from Mycelia sterelia and bacteria were isolated. Among these the dominant species were Aspergillus niger, A. fumigatus and Fushrium solani.

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• Identification of Wavy Grained Red Sanders (Pterocarpus santalinus) at Nursery Stage

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Authors

M. S. Rawat , D. P. Uniyal

Source

Indian Forester, Vol 122, No 9 (1996), Pagination: 831-833

Abstract

Highly wavy grained wood of Red Sanders fetches fabulous prices in the export market, particularly Japan. While the straight grained or normal grained is sold at a very cheap rate. Hence, to increase the frequency of highly wavy grained trees it is necessary to multiply them for large scale plantations, directly or indirectly. A method has been suggested to identify the highly wavy grained plants at nursery stage.

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• Use of Coppice Shoots in Seed Production Areas of Teak : a New Concept

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Authors

M. S. Rawat , D. P. Uniyal , C. J. S. K. Emmanuel

Source

Indian Forester, Vol 121, No 6 (1995), Pagination: 469-471

Abstract

Creation of seed production areas is an important step in the Tree Improvement Programme for the interim supply of superior seed for afforestation till the seed orchards become fully productive. In Teak seed production areas the production of seed is not only insufficient but its collection is also difficult and expensive. Hence a new approach has been suggested, keeping in view the excellent coppicing capacity of Teak, for higher production of seed per tree and making the collection easier and cheaper.

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• Effect of Temperature and Relative Humidity on Grafting and Budding of Teak (Tectona grandis Linn. F)

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Authors

D. P. Uniyal , M. S. Rawat

Source

Indian Forester, Vol 121, No 6 (1995), Pagination: 510-513

Abstract

Cleft grafting and Patch budding are highly successful methods for clonal propagation of Teak provided that work is carried out at 21.3° - 26.3°C temperature and 45.5 -62 per cent relative humidity. Cleft grafting is less economical method in terms of time, material and work as compared to patch budding which is far more easier and cheaper technique. The work is generally carried out in open field condition and for Dehra Dun, April and May were found most suitable period to obtain the maximum success. The percentage of success can be increased by the use of greenhouse or Mist chamber.

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• Natural Regeneration of Populus ciliata

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Authors

S. Nautiyal , D. P. Uniyal , S. P. Chaukiyal

Source

Indian Forester, Vol 121, No 7 (1995), Pagination: 673-674

Abstract

No abstract

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• Macropropagation in Forestry Species

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Authors

M. S. Rawat , C. J. S. K. Emmanuel , D. P. Uniyal

Source

Indian Forester, Vol 120, No 2 (1994), Pagination: 124-137

Abstract

The present article reviews the work undertaken, for various tree species, on vegetative propaption together with its advantages and limitations. Various methods of vegetative multiplication are outlined along with the respective example of classified tree species. The problems faced while practising the techniques in the field have been briefly discussed together with their possible solutions. The article also deals with the after care of the ramets and emphasizes various operation for economically maximising the goal value under Indian conditlions.

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• Variation Studies in the Model Teak Seed Orchard, New Forest, Dehra Dun

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Authors

M. S. Rawat , D. P. Uniyal , R. K. Vakshasya

Source

Indian Forester, Vol 118, No 1 (1992), Pagination: 60-65

Abstract

In forest tree species like Teak, to save time, work on selection of plus trees, establishment of grem plasm banks and creation of seed orchard has to be taken up simultaneously. Genotypic differences, for various parameters, between clones assembled in a first cycle seed orchard create lot of problems and as a consequence seed production is much less than expected. Experiences gained from the model seed orchard of Teak at New Forest, Dehra Dun-first ever seed orcbard in the country - have been presented in this paper to provide information on the performance of various clones to serve as guiding factors for the creation of second cycle seed orchards.

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• Occurrence of Abnormal Seedlings in Pinus wallichiana AB Jacks; their Significance in Tree Breeding

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Authors

R. K. Vakshasya , D. P. Uniyal , M. S. Rawat

Source

Indian Forester, Vol 117, No 1 (1991), Pagination: 18-23

Abstract

Characterlstic branchy hablt of cotyledons was observed in seedlings of Pinus wallichiana AB Jacks, a first ever record in tbe Himalayan pine and probably in conifers. Differences between these normal cotyledons wlth ultrastructure studies are highlighted. Also the abnormal seedlings, recovered during germination studies of the seeds obtained from open pollination, are reported under specific beads as 'lethats' and non-lethats'. The present paper reports tbe appearance of abnormal seedlings and discusses probable explanation for their appearance under various experiments. The need of c1assifying these abnormal seedlings is advocated so that uniform terminology can be adopted to ensure tbe morbid types recovend for understanding the reflection of genetic structure of the population.

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• Teak Plus Trees for Specific Traits

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Authors

R. K. Vakshasya , D. P. Uniyal , M. S. Rawat

Source

Indian Forester, Vol 114, No 3 (1988), Pagination: 168-169

Abstract

No abstract

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• Vegetative Propagation of Sandal by Root Cuttings

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Authors

D. P. Uniyal , R. C. Thapliyal , M. S. Rawat

Source

Indian Forester, Vol 111, No 3 (1985), Pagination: 145-148

Abstract

Sandal(Santalum album) can be propagated vegetatively with considerable case. Of the various method described so far vegetative propagation by ischolar_main cuttings under report is easy to perform and results in fair amount of success(i.e. upto 60%). The application of Seradix B₂ was advantageous and time of planting also seemed to have some influence, i.e. response from cuttings planted in the first week of April was the best as compared to those planted in May. An interesting feature was the emergence of ischolar_mains from the base of one stem which indicates the possibility of mound layering and ischolar_main krafting also. The minimum time taken for sprouting was recorde as 23 days and for ischolar_main development less than 100 days.

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• Photoperiodic Response of Pinus patula Schiede and Deppe Seedlings

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Authors

R. C. Ghosh , H. P. Bhatnagar , D. P. Uniyal

Source

Indian Forester, Vol 103, No 2 (1977), Pagination: 97-105

Abstract

Pot culture studies were conducted with the seedlings Pinus patula to determine the effect of different photoperiodic treatments on height growth, dry matter production and tracheid characteristics. The three treatments (Long day Short day and Normal day) used in this study have significant effect on all the characters studied. Long day treatment of 18 hours continuous light period has significantly improved height growth and dry matter of both ischolar_mains and shoots of the seedlings. Pronounced differences in tracheid characters such as tracheid length, width, lumen diameter and cell wall thickness have been observed under different photoperiodic treatments.

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• Studies on Field Grafting and the Growth of the Grafts in Red Sanders

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Authors

S. Kedhabnath , M. S. Rawat , D. P. Uniyal , D. Lakshmikantham

Source

Indian Forester, Vol 102, No 11 (1976), Pagination: 761-765

Abstract

Grafts were successfully established in Red Sanders using cleft grafting method. The scions used were from 15 wavy grained trees showing different grades of waviness. The grafting work carried out in the month of March over two years gave an overall higher establishment as compared to that done in the month of February during three years. Comparison of rate of annual growth increment in the grafts showed that there was no significant difference between the clones in this character.

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