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Co-Authors
- Vijay Rawat
- Smita Bisht
- Mridula Negi
- P. S. Chauhan
- Vivek Dhand
- A. K. Tripathi
- R. K. Manhas
- Rakesh Kumar
- P. K. Pande
- S. C. Sharma
- Lokender Singh
- Raka Singh
- H. B. Naithani
- R. C. Thapliyal
- T. C. Pokhriyal
- Omkar Singh
- S. T. S. Lepcha
- V. K. Bahuguna
- S. R. Joshi
- K. C. Naithani
- D. C. Sharma
- G. P. Maithani
- A. P. S. Bisht
- N. K. S. Bora
- V. N. Tandon
- H. D. Thapliyal
- O. N. Kaul
- P. B. L. Shrivastava
- P. B. L. Srivastava
- A. C. Gupta
Journals
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Negi, J. D. S.
- Biomass Production of Eucalyptus tereticornis in Different Agroecological Regions of India
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Indian Forester, Vol 130, No 6 (2004), Pagination: 762-770Abstract
Climate inter alia is the strongest ecological factor in determining the primary production. Eucalyptus terelicornis (Mysore Gum) is most widely planted species in India. In the present paper an attempt has been made to assess the primary production of the species in different agroecological regions of India. Depending on length of growing period (LGP) and precipitation, country has been divided into six agroecological zones and available data on biomass production has been stratified into different agroecological zones. In general biomass varied from 11.9 t/ha in three year old plantation to 146 than in 9 year old plantation in moist regions. In dry tropical region it varied from 5.65 t/ha in 5 year plantation to 135.5 t/ha in 9 year old plantation. In dry tropical regions biomass accumulation was more in cooler areas as compared to warmer areas. Where water is not the limiting factor comparatively higher mean annual temperature of around 25°C seems to produce higher biomass. A higher share of leaf biomass was observed in dry region. The ischolar_mainl/shoot ratio was also higher in dry tropical region.- Biomass Production of Eucalyptus tereticornis in Different Agroecological Regions of India
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Indian Forester, Vol 130, No 7 (2004), Pagination: 762-770Abstract
Climate inter alia is the strongest ecological factor in determining the primary production. Eucalyptus tereticornis (Mysore Gum) is most widely planted species in India. In the present paper an attempt has been made to assess the primary production of the species in different agroecological regions ofIndia. Depending on length of growing period (LGP) and precipitation, country has been divided into six agroecological zones and available data on biomass produetion has been stratified into different agroecological zones. In general biomass varied from 11.9 t/ha in three year old plantation to 146 t/ha in 9 year old plantation in moist regions. In dry tropical region it varied from 5.65 t/ha in 5 year plantation to 135.5 t/ha in 9 year old plantation. In dry tropical regions biomass accumulation was more in cooler areas as compared to warmer areas. Where water is not the limiting factor comparatively higher mean annual temperature of around 25°C seems to produce higher biomass. A higher share of leaf biomass was observed in dry region. The ischolar_main/shoot ratio was also higher in dry tropical region.- Seasonal Nutrient Variation in Foliage and Leaf Litter and their Conservation in Dalbergia sissoo Ecosystems
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Indian Forester, Vol 129, No 4 (2003), Pagination: 457-468Abstract
Monthly foliage and leaf litter nutrient content (N, P, K, Ca and Mg) were studied along with leaf fall pattern to understand the nutrient conservation in natural and plantation ecosystems of Dalbergia sissoo. It was observed that elevated concentration of Nitrogen in foliage and leaf litter along with sandy soils and high percentage of nutrient withdrawal indicated suitability of site for D. sissoo. Manmade or natural disturbances may alter soil physico-chemical properties, especially enrichment of soil with clay, to create situations favourable for secondary successional species eliminating D. sissoo.- Evidences of Climate Change and its Impact on Structure and Function of Forest Ecosystems in and Around Doon Valley
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Indian Forester, Vol 129, No 6 (2003), Pagination: 757-769Abstract
Available data on meteorological observation , phytosociological studies , population dynamics and biomass in moist Sal (Shorea robusta Gaertn. f.) forest of Doon Valley and adjacent dry deciduous forest are utilized to understand the structure and functioning of ecosystem. Seventy years mean maximum and mean minimum daily temperature and rainfall were analyzed for each five-year interval (1931-2000). It was observed that there is an increase of O.5°C in mean maximum temperature and decline of 1.1°C in mean minimum temperature. However total rain (monsoon , June to October + local rains , November to May) has declined by 17% during seventy year of period , whereas the local rains has increased by 27% since 1981 onward. Fluctuations in temperature and rainfall have pronounced effect on the distribution of evergreen and deciduous tree species. Further , change in climatic pattern and microclimatic conditions as a result of deforestation have noticeable impact on forest decline. Atmospheric CO2. enrichment has put a positive response in enhancing productivity of these ecosystems.- Estimation of Carbon Content in Some Forest Tree Species
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Indian Forester, Vol 129, No 7 (2003), Pagination: 918-922Abstract
A study was carried out in the Forest Research Institute Campus, Dehra Dun to estimate the carbon content of some of the important tree species to have an idea about the responses of these species to the changing climate. The conclusive outputs of this paper are, (i) Pinus roxburghii is storing maximum amount of carbon followed by Pterospermum acerifoIium, Syzygium cumini etc.; (ii) the carbon storing efficiency of some species like P. roxburghii, Shorea robusta etc. is decreasing with increasing concentration of CO2, This may be due to the fact that biota is currently releasing additional carbon to the atmosphere rather than storing carbon. This new hypothesis, against our general hypothesis that with increasing atmospheric carbon the efficiency of storing carbon will also increase, is a preliminary study and needs much more studies and experiments.- Foliage Water Loss Pattern in Sal (Shorea robusta Gaertn.f.) and Its Associates under Stress
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Indian Forester, Vol 128, No 6 (2002), Pagination: 655-659Abstract
An attempt has been made to understand the foliage water loss pattern in Sal forest in Barkot Forest Range of Dehra Dun Forest Division. The study reveals that heavy canopy opening resulted in increase in atmospheric temperature, which is causing stressful environment for the community. Under this stressful environment Mallotus philippensis appears to be drought tolerant species, which can cope with the adverse environment conditions to some extent. This has the conformity that in the Sal forest, where the moisture has become the limiting factor, Mallotus philippensis is the only species, which is colonising during the phase of retrogressive succession.- Green House Gases Mitigation Potential by Sal (Shorea robusta Gaertn. F.) forest in do on Valley
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Indian Forester, Vol 128, No 7 (2002), Pagination: 771-778Abstract
In the recent past most of the land in Doon Valley , which was under the forest cover , agriculture and orchard has been reduced remarkably and converted into a jungle of concrete. The manifold increase in the number of automobiles and industrial activities has caused rise in the concentration of Green House Gases (GHGs) resulting in an increase in atmospheric temperature. The present paper describes the estimated biomass and productivity of 11 representative sites for accounting carbon storage by Sal (Shorea robusta) , which contributes 18.5-98.1 % of the total crop. The standing biomass was calculated using prediction equations for each diameter classes in each site and expressed on hectare basis. Age of each crop was calculated with the help of age and diameter correlation for each quality class for determining productivity. The increase in temperature followed by the increased rainfall has ultimately provided the favourable condition for fast decomposition and mineralisation resulting in high productivity and subsequently high carbon sequestration.- Plant Species Diversity, Composition, Gradient Analysis and Regeneration Behaviour of some Tree Species in a Moist Temperate Western Himalayan forest Ecosystem
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Cedrus deodara-Quercus leucotrichophora-Pinus wallichiana (site-II) and
Q. leucotrichophora-C. deodara-P. wallichiana (site-III). Total density range for the tree species (plant 100 m-1) was 4.51-6.64; 23.56-41.62 for shrubs and 7,280-11,920 for herbaceous species; while the range for total basal cover (cm2 100m-2 ) was in between 0.332-0.938 for trees; 9.50-18.81 cm2100m-2 for shrubs and 235-323 cm2100 m-2 for herbaceous species. Most of the species in all the sites showed contiguous pattern of distribution, however some species were also randomly distributed. Maximum diversity of trees was observed for site-III and for herb and shrubs species diversity values were highest for sites II and III respectively. However, lowest diversity was recorded for the herbaceous layer in site-III. Further, increasing altitude showed increase in tree diversity. Concentration of dominance showed reverse trend to diversity. Sites II and III were most similar sites, whereas sites I and III were most dissimilar sites. Highesio turnover of tree species was recorded between sites I and III; for shrub species, these were site-II and III and maximum turnover for herb species was recorded between sites I and II. In all the studied sites, the dominant species has shown good regeneration potential as evidenced by the presence of adequate number of seedling, sapling and distribution of boles among almost all gbh classes.
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Indian Forester, Vol 128, No 8 (2002), Pagination: 869-886Abstract
Vegetation composition, species diversity, distribution pattern and other parameter of vegetation analysis along with the population structure and regeneration behaviour of some tree species in a Western Himalayan forest of Chakrata Forest Division (Uttaranchal) were studied. The possibility of future composition changes was also explored. The whole area is divided into three sites as per their aspect and altitudes (site-I - alt. 1,700 masl, aspect N-Ej site-II - alt. 2,050 masl, aspect, N, and site-III, alt., 2,100 masl, aspect, N-W). The communities for these sites were identified as Cedrus deodara forest (site-I),Cedrus deodara-Quercus leucotrichophora-Pinus wallichiana (site-II) and
Q. leucotrichophora-C. deodara-P. wallichiana (site-III). Total density range for the tree species (plant 100 m-1) was 4.51-6.64; 23.56-41.62 for shrubs and 7,280-11,920 for herbaceous species; while the range for total basal cover (cm2 100m-2 ) was in between 0.332-0.938 for trees; 9.50-18.81 cm2100m-2 for shrubs and 235-323 cm2100 m-2 for herbaceous species. Most of the species in all the sites showed contiguous pattern of distribution, however some species were also randomly distributed. Maximum diversity of trees was observed for site-III and for herb and shrubs species diversity values were highest for sites II and III respectively. However, lowest diversity was recorded for the herbaceous layer in site-III. Further, increasing altitude showed increase in tree diversity. Concentration of dominance showed reverse trend to diversity. Sites II and III were most similar sites, whereas sites I and III were most dissimilar sites. Highesio turnover of tree species was recorded between sites I and III; for shrub species, these were site-II and III and maximum turnover for herb species was recorded between sites I and II. In all the studied sites, the dominant species has shown good regeneration potential as evidenced by the presence of adequate number of seedling, sapling and distribution of boles among almost all gbh classes.
- Species Diversity, Turn-over and Resource Apportionment among Various Plant Species in a Western-Himalayan forest
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Indian Forester, Vol 126, No 7 (2000), Pagination: 727-741Abstract
In this paper, species diversity, species turn-over and resource apportionment among the various species at selected sites of Western-Himalayan forest situated at Sandev, Distt. Pithoragarh (U.P.) are described. The whole are is divided into four sub sites as per their aspect, altitude and vegetation. In general, Quercusleucotrichophora, Pieris ovalifolia, Rhododendron arboreum, Alnus nepalensis and Macaranga denticulata dominate the site except site-III, where Pinus rOlCburghii forms its community with P. ovalifolia and R. arboreum. The density value range (plant/100m2) was 6.37-12.37 for tree layer; 21-74 for shrubs and 6182-11400 for herb layer. Total basal cover (cm2/100m2) ranged in between 1986-4612 for tree layer; 17-50 for shrubs and 246-497 for herbaceous layer. Diversity.index is higher for herbs and lowest for trees. Site-IV is more diverse than of the other sites for trees and shrubs while site-II is more diverse than of the other sites as far as herbs are concerned. Site-III and IV are the more similar sites whereas site-I and IV showed least similarity. In general, log and log-normal distribution of species is followed by most of the Bites for all the life.forms, which is indicative of higher interspecific competition among the various species at their respective sites.- Dominance, Diversity and Regeneration Status of a Moist Sub-tropical Shorea robusta Gaertn. f. (Sal) Forest of Doon Valley, India
Abstract Views :322 |
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Indian Forester, Vol 136, No 4 (2010), Pagination: 544-552Abstract
Dominance, diversity and regeneration status of a moist sub-tropical sal forest in Doon valley was investigated. The results of the study reveal that S. robusta, Ardesia solanacea and Oplismenus compositus were the most dominant species in tree, shrub and herb layers respectively. Shrub layer was the most diverse strata, closely followed by the herb strata. Forest of Asarori are becoming more diverse and heterogeneous. Regeneration studies exhibited reverse 'J' shaped curve for sal, which signifies good regeneration. But low conversion rate of seedlings to saplings requires proper management.Keywords
Diversity, Regeneration States, Shorea robusta, Ardesia solanacea, Oplismenus compositus, Doon Valley- Is Sal Mortality Related to Global Climate Change?
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Indian Forester, Vol 124, No 9 (1998), Pagination: 749-750Abstract
No abstract- Biomass Prediction and Distribution of Organic Matter in Natural Cinnamomum camphora Stand
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Indian Forester, Vol 123, No 12 (1997), Pagination: 1161-1170Abstract
Biomass prediction and distribution of organic matter in different components of Cinnamomum camphora tree species was studied. Correlation coefficient and regression models were worked out separately for each biomass component and the total aboveground biomass. Among the predictor variables tried, D2H was found to be the most reliable parameter for predicting biomass. The total standing aboveground biomass of C. camphora stand is 104.0 tonnes/ha. Contribution of different tree components to the total aboveground biomass is in the following order: Bole > Twigs + Branch > Bark > Leaves > Fruit.- Valley of Flowers: Need for Conservation or Preservation
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Indian Forester, Vol 118, No 5 (1992), Pagination: 371-378Abstract
The vegetation of the Bhyunder Valley in the Nanda Devi National Park, situated in the Garhwal Himalaya, is unique and abounding in biological diversity. Proper cataloguing of species diversity is important from the point of view of evolving strategies for the conservation of rare and endangered species. Earlier attempts at listing of species suffer from some glaring omissions which have been highlighted in this paper. A wide variety of herbs which presented a marvel of nature's landscaping when in flowering during the period of summer rains and which attracted trackers from all over the world have dwindled considerably in racent years. The authors trace this to the banning of grazing in the valley which has led to overdominance of some faster growing, and taller species resulting in the suppression of a number of less aggressive species. An attempt has been made to underline some factors which might have been responsible for decline in floral diversity.- Shrubs and their Role in Environmental Conservation of Degraded Slopes of Himalaya
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Indian Forester, Vol 117, No 6 (1991), Pagination: 449-453Abstract
The paper describes the role of shrubs in environmental conservation Of degraded slopes of Himalaya. Emphasis has been given on the protection of the disturbed slopes in ordcr to increase the species diversity and enrichment of the top soil to provide congenial environment for tree planting of desired species.- Biomass and Nutrient Accumulation (Inventories) in Shrubland Ecosystems of Garhwal
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Indian Forester, Vol 117, No 8 (1991), Pagination: 635-641Abstract
Biomass and nutrient accumulation at two sites of shrub land ecosystems were studies in Tehri Dam-I Division of Garbwal Himalaya. Carrissa spinarum and Indigofera mulchella are two colonising shrub species on the degraded slopes framing a close association. Biomass production at boant site (22.7 t ha-1) was observed more than that of unbornt (13.5 t ha 1). Substantial amount of nutrients are conserved in the biomass.- Leaf Litter Decomposition and Nutrient Release in Shorea robusta and Eucalyptus camaldulensis Plantation
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Indian Forester, Vol 116, No 2 (1990), Pagination: 103-114Abstract
The paper describes the results of a study carried out on the litter decomposition of Shorea robusta and Eucalyptus camaldulensis plantation of forest estate. The study revealed that under the present microclimatic conditions the litter decomposition was faster under Eucalyptus prohably on account of high initial leachability of the potassium. The rate of decomposition under sal have shown a steady pattern of weight loss.- Biomass Production and Dtstribution of Nutrifnts in 20 Years Old Teak (tectona grandis) and Gamar (Gmelina arborea) Plantation in Tripura
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Indian Forester, Vol 116, No 9 (1990), Pagination: 681-686Abstract
This paper deals with the results of a study on biomass preduction and distribution of nutrients carried out in 20 years old teak and gamar plantations in Teliamura Forest Division in Tripura State during January, 1987. The resulls of the studies indicated that the productivity for teak comes out to be 6.9 tons/ha/year and 8.2 tons/ha/year for gamar.- Comparative Assessment of Methods for Estimating Biomass in Forest Ecosystem
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Indian Forester, Vol 114, No 3 (1988), Pagination: 136-144Abstract
The paper describes various methods of biomass estimation in forest ecosystems with their limitations and applicability. Some comparisons have also been made between the conventional stratified tree techniques and other methods and the regression technique has been found to be satisfactory for wider application or where the destructive sampling is not desirable.- Survey of Shrubs for Hastening the Processes of Reclamation of Ecologically Vulnerable Areas of Central Himalayas
Abstract Views :206 |
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Indian Forester, Vol 114, No 5 (1988), Pagination: 243-250Abstract
This paper describes the results of a survey conducted on the pioneering species growing in the degraded areas of Garhwal Himalayas. The concept of eco-development can be achieved in these hills through planting of shrub species. A list of shrubs growing on wastelands is given along with their economic importance.- Forest Floor and Soil Nutrient Inventories in an Old Growth Eucalyptus Plantations
Abstract Views :226 |
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Indian Forester, Vol 114, No 8 (1988), Pagination: 453-461Abstract
Studies on forest floor and soil nutrient reserve (0-25 cm) under five eucalypts (E. acmenoides, E. eugenoides, E. paniculata, E. pilularis and E. propinqua) plantations were carried out in the Nilgiris, Tamil Nadu. These studies reveal that the forest floor behaviour was similar to that of tropical forest, while the soil nutrient status was akin to the temperate forest of the world. Thus, the soil nutrient status is well developed under eucalypts plantation.- Biomass Estimation of Two Eucalyptus Species by Regression Method
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Indian Forester, Vol 113, No 3 (1987), Pagination: 180-184Abstract
A set of regression lines has been obtained from the biomass data of Eucalyptus species growing in Tamil Nadu and using these equations, it is possible to predict the biomass from the measurement of diameter and height, without felling the trees.- Natural Processes in the Redeeming of Garhwal Himalayan Wastelands and Future Strategies for Reclamation-a Case Study
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Indian Forester, Vol 112, No 7 (1986), Pagination: 608-615Abstract
This paper describes the result of a case study on the role of natural processes in the revegetation of Himalayan eroded slopes, and other ecologically disturbed areas. The study, after observation of these areas, reveals that the areas can be reclaimed initially through planting of shrubs. The details of the species noticed during the study have been listed.- Biomass and Nutrient Distribution in an Age Series of Eucabyptus Hybrid Plantation in Tamil Nadu I. Distribution of Organic Matter
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Indian Forester, Vol 111, No 12 (1985), Pagination: 1111-1122Abstract
The distribution of organic matter in an age series of Eucalyptus Hybrid plantation. In Tamil Nadu has been discussed . It was observed that (i) the rotation age for E. hybrid can be fixed at 7 years where the mean Annaual Production (MAP) is at the maximum,(ii) Pollachi seems to be comparatively better site for E. hybrid planting presumbly due to higher leaf efficiency and (iii) to increase the productivity in a coppicied crop thinning is essential as the lower stand density gives a better chance for high leaf production and consequently higher biomass.- Eucalyptus Dilemma : a Clarification Thereof
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Indian Forester, Vol 111, No 12 (1985), Pagination: 1139-1150Abstract
the paper summerises the impact of plantation foresty in general with special references to Eucalyptus plantation - a much talked about issue of the day. To be able to conserve the environment can-gained to the human inhabitation require the fuller understanding of mam-made ecosystem in terms of in-put and out-put in tatality. Of the many environmental factor which influences the human environment , in the present writeup, a possible role of nutrient dynamics has been detailed out. However, it is not easy to set the clock back early realisation of the facts must be analysed in its right perspective to save the humankind- Organic Matter Production in an Age Series of Eucalyptus globulus Plantations in Tamil Nadu
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Indian Forester, Vol 110, No 8 (1984), Pagination: 802-813Abstract
The distribution of organic matter in an age series of Eucalyptus globulus plantations in Tamil Nadu has been discussed. The total biomass ranges from 38 tonnes (5 yeas) to 220 tonnes (16 years) per ha with 85 to 88 per cent being contributed by the aboveground parts and 15 to 12 per cent by the ischolar_mains and the average annual production of non-photosynthetic components at its peak (l9 tonness/ha) at the age of 7 years.- Distribution of Nutrient in an Age Series of Eucalyptus globulus Platation in Tamil Nadu
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Indian Forester, Vol 110, No 9 (1984), Pagination: 944-953Abstract
The distribution of nutrients in six blue gum (E. globulus) plantations of different ages growing in Tamil Nadu bas been discussed. As a result of harvesting tbe bole (59% of total biomass) only at the age of 7 years will result in the removal of nearly 44% (N and P), 29% (K) 7% (Ca) and 24% (Mg). The same plantation when harvested at the age of 16 years with a bole biomass of 74.3% will cause the removal of 55% of N, 65% of P. 22% of K, 13% of Ca and 27% of Mg.- Organic Matter and Plant Nutrient Distribution in a Chir (Pinus roxburghii) Plantation
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Indian Forester, Vol 107, No 2 (1981), Pagination: 86-94Abstract
The distribution of dry matter and plant nutrients in various tree components for a 44 years old chir (Pinus roxburghji) plantation crop have been discussed. As a result of harvesting, nearly 62 to 87 per cent of the above-ground nutrients contained in the stand are removed.- Comparative Transpiration Rates of Six Eucalyptus Species
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Indian Forester, Vol 105, No 7 (1979), Pagination: 500-508Abstract
Comparative transpiration rates of siz Eucalyptus species viz. E. teretlicornis, E. hybrid, E. paniculata, E. robusta, E. albrz and E. saligna, under adequate moisture and stress conditions were studied along with their water deficit percentages. The results show that E. tereticornis, and E hybrid not only have lower rates of transpiration both under adequate moisture and stress conditions, but also possess inherent tissue characteristics to maintain higher level of hydration even under stress conditions. It is concluded that these two species tnay be more drought tolerant as compared to other species investigated.- Nutrition Studies on Eucalyptus. V. Diagnosis of Mineral Deficiencies in Eucalyptus citriodora Seedlings
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Indian Forester, Vol 96, No 10 (1970), Pagination: 787-790Abstract
no abstract- Diagnosis of Mineral Deficiencies in Teak (Tectona grandis) Seedlings
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Indian Forester, Vol 98, No 3 (1972), Pagination: 173-177Abstract
The paper describes the morphological symptoms caused by the deficiency of some macronutrients ou teak (Tectona grandis) seedlings and their effect on growth, dry matter production and nutrient uptake. The results indicate that recognisable deficiency symptoms were caused by the absence of each of the macronutrients. Unlike some other forest species studied so far, deficiency of sulphur caused distinct symptoms of chlorosis, curling of leaves and premature defoliation with restricted shoot growth. The deficiency of all the elements except that of potassium significantly reduced height growth and dry matter production.- Diagnosis of Mineral Deficiencies in Pinus patula Seedlings
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