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Empirical Findings on the Forest Law and Policy in Bangladesh
Issue:
Volume 2, Issue 2, April 2013
Pages:
49-66
Abstract: Forest and forest resources are one of the important factors for the conservation and development of the environment and environmental resources in Bangladesh.It is observed that these natural resources of our country are not properly utilized but it is often exploited due to over population, unwise use of natural resources etc. To cope with these problems, some important legal foundations have already been passed for effective role in the development of forest and forest resources of Bangladesh.The study finds that most of the forest laws and policies are originated from the rule of British colonial authorities. In this regard, some significant amendments of the laws are made after the partition of the Indian subcontinent and a few are also amended after the independence of Bangladesh. In 1990s, some important integrated Acts such as the Bangladesh Environment Conservation Act, 1995 and its Rules, 1997 and the Environment Court, 2000 etc., are passed for the development and conservation of the environment of Bangladesh which enormously carried out for the protection of the forest and forest resources in Bangladesh. There are some limitations such as lack of enforcement, non-coordination, corruptions, outdated laws, insufficient penal provisions etc., which makes hindrance to the implementation of the forest laws and policies in Bangladesh. It is suggested that the policy implications framed in this study should strictly be emphasized for the implementation as to bringing about sustainable forest environment and development of Bangladesh.
Abstract: Forest and forest resources are one of the important factors for the conservation and development of the environment and environmental resources in Bangladesh.It is observed that these natural resources of our country are not properly utilized but it is often exploited due to over population, unwise use of natural resources etc. To cope with these ...
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Diversity of Aerial Yam /Dioscorea bulbifera (L.)/ Accessions in Ethiopia Based on Agronomic Traits
Issue:
Volume 2, Issue 2, April 2013
Pages:
67-71
Abstract: The experiment was conducted at Jimma Agricultural Research Centre during 2007 cropping season. The objectives of the study were to evaluate the genetic diversity of aerial yam using agronomic traits so as to characterize and cluster with in collected aerial yam genotypes. Forty-seven aerial yam genotypes were sampled from the collection. Relatively high broad sense heritability was observed for Vine dry weight (53.14), tuber diameter (42.54), tuber length (42.04) and vine length (39.69) indicating the existence of possibility for selection of genotypes for high fresh tuber yield. The clustering of genotypes based on 11 quantitative traits revealed the existence of five distinct groups. The maximum inter cluster distance was observed between genotypes under cluster II and V and I (D2 =1844) IV and V (D2 =1702) hence, the genotypes grouped in these clusters could be used for crossing if high fresh tuber yield genotypes are planned in breeding program.
Abstract: The experiment was conducted at Jimma Agricultural Research Centre during 2007 cropping season. The objectives of the study were to evaluate the genetic diversity of aerial yam using agronomic traits so as to characterize and cluster with in collected aerial yam genotypes. Forty-seven aerial yam genotypes were sampled from the collection. Relativel...
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Algorithms for Control of Genetic-Breeding Improvement of Economically Valuable Traits of Self-Pollinated Plants
Mikhailenko I. M.,
Dragavtsev V. A.
Issue:
Volume 2, Issue 2, April 2013
Pages:
72-76
Abstract: The new approaches to solving problems of selection parent’s pairs (varieties) for crossing and forecast of eco-genetic portrait of the future new variety. Paper supplements the two previous publications on the formalization of the quantitative theory of eco-genetic processes [1,2].
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Amphibians and Reptiles in the New Edition of the Animals’ Red Data Book of Armenia
Aram Aghasyan,
Levon Aghasyan,
Eduard Yeghiasaryan,
Silva Amiryan
Issue:
Volume 2, Issue 2, April 2013
Pages:
77-88
Abstract: Being a mountainous country with distinct altitudinal zonality, Armenia retains high diversity and endemism of plant and animal species. New edition of the Red Data Book represents an important official document and a guide towards the efficient conservation of Armenia’s unique fauna which demands for the large-scale work on the improvement of legislative background, implementation of population monitoring, early detection of imminent threats, and development of the regional strategy of genetic resources conservation. The goal of this article is to present Amphibians and Reptiles included in the new edition of Red Data Book of Armenia.
Abstract: Being a mountainous country with distinct altitudinal zonality, Armenia retains high diversity and endemism of plant and animal species. New edition of the Red Data Book represents an important official document and a guide towards the efficient conservation of Armenia’s unique fauna which demands for the large-scale work on the improvement of legi...
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Effect of Hydro-Priming and Pre-Germinating Rice Seed on the Yield and Terminal Moisture Stress Mitigation of Rain-Fed Lowland Rice
Tilahun-Tadesse F.,
Nigussie-Dechassa R.,
Wondimu Bayu,
Setegn Gebeyehu
Issue:
Volume 2, Issue 2, April 2013
Pages:
89-97
Abstract: Terminal moisture stress is one of the major problems constraining rain-fed lowland rice production in north-western Ethiopia. A field experiment was conducted in 2010 and 2011 at Fogera plains to study the effect of hydro-priming and pre-germinating rice seed on the yield and response of the crop to terminal moisture stress. A factorial combination of eight seed treatments and three sowing times were studied in RCB design with three replications. Data on crop phenology, shoot biomass, leaf area, number of productive and unproductive tillers, filled and unfilled spikeletes, plant height, biomass yield, thousand seed weight, and grain yield were collected and analyzed. The results revealed that planting pre-germinated seeds as well as seeds soaked and dried for 24 hrs at the local (farmers’) sowing time resulted in significantly earlier seedling emergence, heading, and maturity. Higher numbers of productive tillers, filled spikeletes, leaf area index, crop growth rate, net assimilation rate, grain yield, biomass yield, and harvest index were recorded in response to planting pre-germinated seeds followed by seeds soaked and dried for 24 hrs at farmers’ sowing time. The present study concluded that planting pre-germinated seeds or hydro-primed seeds soaked and dried for 24 hrs could be practiced as the first and second best alternatives for rice production on Fogera plains in northwestern Ethiopia.
Abstract: Terminal moisture stress is one of the major problems constraining rain-fed lowland rice production in north-western Ethiopia. A field experiment was conducted in 2010 and 2011 at Fogera plains to study the effect of hydro-priming and pre-germinating rice seed on the yield and response of the crop to terminal moisture stress. A factorial combinatio...
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Interrelationship and Association of Characters in Robusta Coffee (Coffea Canephora Var. Robusta)
V. B. Sureshkumar,
K. R. Nikhila,
K. V. Mohanan,
N. S. Prakash
Issue:
Volume 2, Issue 2, April 2013
Pages:
98-104
Abstract: Commercial coffee is obtained from the processed beans of two species of the genus Coffea namely C. arabica and C. canephora, the former yielding arabica coffee and the latter yielding robusta coffee. Most of the agronomic characters of crop plants are controlled by polygenes and hence they show different levels of interrelationships. Analysis of correlation between such characters and further study of relative contribution of each character towards the genetic potential of the species provide valuable tools to identify the lead characters among them so that further improvement programmes could be based on such characters. The present study of the agronomically important polygenic characters of robusta coffee, utilizing the robusta coffee germplasm maintained in the Regional Coffee Research Station, Chundale, Wayanad, Kerala, India by the Central Coffee Research Institute of India has shown that girth of primary branches, weight of 100 dry fruits and percentage of A grade beans have got significant positive correlation with the maximum number of other characters. Factor analysis revealed that bush spread showed the maximum factor loading followed by length of primary branches and girth of primary branches. This shows the strength of the association of these characters with others and their importance in robusta breeding programmes.
Abstract: Commercial coffee is obtained from the processed beans of two species of the genus Coffea namely C. arabica and C. canephora, the former yielding arabica coffee and the latter yielding robusta coffee. Most of the agronomic characters of crop plants are controlled by polygenes and hence they show different levels of interrelationships. Analysis of c...
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Physical Properties of Wood in Selected Lessor Known Tree Species in Botswana
Ronnie Mmolotsi,
Kealeboga Kejekgabo
Issue:
Volume 2, Issue 2, April 2013
Pages:
105-109
Abstract: A study was carried out to evaluate physical properties of wood of four indigenous tree species. Samples were obtained at random from the logs at a timber and wood processing yard. Acacia burkea and S. Africana possess heartwood that is distinctly different in colour from the sapwood. Acacia burkeashowed very dark colour in the heartwood while that of Spirostachys africana was dark greyish brown in colour. Wood of P. africanum and Terminelia serecia displayed no distinctly different colours between the sapwood and the heartwood. Density also varied in different woods with the highest density values recorded at 0.97 g cm3 in the A. burkeaand the lowest was 0.70 g cm3 in P. africanum. There were significant differences in densities between wood of all these species. The highest change in dimensions was recorded in the tangent side of all woods except for A. burkea. The highest dimensional changes were recorded at 9.02± 4.02 percentin the tangent side of P. africanum. The lowest dimensional changes were recorded at 0.41±0.08 percent in the longitudinal section of the P. africanumwood. Overall the lowest changes were recorded in the longitudinal side of wood.
Abstract: A study was carried out to evaluate physical properties of wood of four indigenous tree species. Samples were obtained at random from the logs at a timber and wood processing yard. Acacia burkea and S. Africana possess heartwood that is distinctly different in colour from the sapwood. Acacia burkeashowed very dark colour in the heartwood while that...
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Histo-Cytological Study of the Graft union of the Chestnut (Castanea Sativa Mill)/Oak (Quercus Vulcanica Boiss)
Issue:
Volume 2, Issue 2, April 2013
Pages:
110-115
Received:
8 April 2013
Published:
20 May 2013
Abstract: Graft compatibility is a complex mechanism with a wide range of different physiological, biochemical, and anatomical interactions. In the present paper, features of the graft union on the combination of the European chestnut (Castanea sativa Mill.) on an oak (Quercus vulcanica Boiss.) rootstock based on whip grafting was investigated. The trial was conducted in the greenhouse at the Faculty of Agriculture, Adnan Menderes University, in western Turkey during 2006-7. The grafts were made with scion from chestnut genotype N-3-4 on an oak rootstock. Cross and longitudinal sections of the graft union for examination were taken 30, 60, 90, 120, 150 and 210 days after grafting, and fixed in 70% ethanol. Microscopic observation of the anatomical and histo-cytological structure of the graft union area revealed that new cambium, xylem, and phloem tissues were formed in the samples 120 days after grafting. The results showed that, graft compatibility exists between chestnut and oaks. Callus formation and differentiation of vascular tissues started 150 days after grafting.
Abstract: Graft compatibility is a complex mechanism with a wide range of different physiological, biochemical, and anatomical interactions. In the present paper, features of the graft union on the combination of the European chestnut (Castanea sativa Mill.) on an oak (Quercus vulcanica Boiss.) rootstock based on whip grafting was investigated. The trial was...
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