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Vakshasya, R. K.
- Variation Studies in the Model Teak Seed Orchard, New Forest, Dehra Dun
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Indian Forester, Vol 118, No 1 (1992), Pagination: 60-65Abstract
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.- Occurrence of Abnormal Seedlings in Pinus wallichiana AB Jacks; their Significance in Tree Breeding
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Indian Forester, Vol 117, No 1 (1991), Pagination: 18-23Abstract
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.- Teak Plus Trees for Specific Traits
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Indian Forester, Vol 114, No 3 (1988), Pagination: 168-169Abstract
No abstract- An Abnormal Seedling in Teak
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Indian Forester, Vol 110, No 5 (1984), Pagination: 497-498Abstract
An abnormal seedling of Teak (Tectono grandis), in respect of chlorophyll deficiency causing variegation in leaves, has been reported.- A Note on Field Grafting in Chir Pine
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Indian Forester, Vol 105, No 4 (1979), Pagination: 301-304Abstract
Syotematic field. grafting was carried out every month in Chir Pine (Pinus roxburghii Sarg) at New Forest, Dehra Dun from September, 1975 to june, 1976. One hundred per cent success in 'graft take' was obtained both in autoplastic and homeoplastic grafls made during the months of September, November and january. The grafts made daring the months of April, May and june failed completely. The grafts made during the months of October, Decetmber, February and March showed 60, 70, 65 and 55 percent suecess in homeoplaotic grafts and 55, 60, 60 and 50 per cent in autoplastic grafts. The knowledge gained from this trial on the best time of the year for grafting with this species it is expected that the work on establishment of seed orchard will get speeded up.- Field Grafting Studies in Pinus patula
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