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The Assessment of Implementing Conventional Cotton: A Regression Analysis of Meta-Data
Julian Witjaksono,
Dahya,
Asmin
Issue:
Volume 4, Issue 2, March 2016
Pages:
10-14
Received:
8 March 2016
Accepted:
16 March 2016
Published:
31 March 2016
Abstract: This paper investigated the effects of implementing conventional cotton using meta data as the global scope from developed countries (America and Australia) and developing countries (India and China). The data base collected individual studies from more than one decade of field trials and survey. More specifically, the global effects of conventional cotton on crop yields, seed costs, pesticide costs, management and labor costs, and finally net returns were analyzed. Regression analysis was conducted to investigate and estimate the relationship between response variable and explanatory variables on these parameters. The results indicated that yield gain is the high expectation of cotton growers to optimize the net return and a strong positive correlation between yield and net return indicates that increased yield of using conventional cotton leads to higher revenue of cotton grower.
Abstract: This paper investigated the effects of implementing conventional cotton using meta data as the global scope from developed countries (America and Australia) and developing countries (India and China). The data base collected individual studies from more than one decade of field trials and survey. More specifically, the global effects of conventiona...
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Inhibitory Effects of Oligochitosan on Pathogenic Fungi Isolated from Zanthoxylum bungeanum
Peiqin Li,
Zhou Wu,
Tao Liu,
Yanan Wang
Issue:
Volume 4, Issue 2, March 2016
Pages:
15-22
Received:
8 April 2016
Accepted:
Published:
9 April 2016
Abstract: To explore nontoxic degradable natural substances which could be used to control Zanthoxylum bungeanum diseases, the effects of oligochitosans, i.e., OCHA and OCHB, on pathogenic fungi Pseudocercospora zanthoxyli, Fusarium sambucinum and Phytophthora boehmeriae were investigated. Excellent inhibitory effects of OCHA and OCHB on the growth of all tested pathogens were observed, which were calculated by RGI and BGI. The highest inhibitions for P. zanthoxyli and F. sambucinum were induced by 1.0 mg/mL OCHB with the corresponding RGI values as 51.25% and 95.69%, and BGI values as 44.76% and 92.34%. For P. boehmeriae, the maximum values of RGI and BGI were induced by 1.0 mg/mL OCHA with the corresponding values as 82.35% and 53.24%. Desirable results obtained from the present research might establish the foundation for the utilization of oligochitosan for the nuisanceless control of Z. bungeanum diseases.
Abstract: To explore nontoxic degradable natural substances which could be used to control Zanthoxylum bungeanum diseases, the effects of oligochitosans, i.e., OCHA and OCHB, on pathogenic fungi Pseudocercospora zanthoxyli, Fusarium sambucinum and Phytophthora boehmeriae were investigated. Excellent inhibitory effects of OCHA and OCHB on the growth of all te...
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Resource Domestication: An Introduction to Biodiversity and Wildlife in Agriculture
Issue:
Volume 4, Issue 2, March 2016
Pages:
23-29
Received:
17 March 2016
Accepted:
28 March 2016
Published:
15 April 2016
Abstract: Biodiversity and Wildlife are relatively recent concepts in Agriculture. However, the meaning of each concept remains to be clearly distinguished from similar concept in Natural Resource Conservation. The concepts of Biodiversity and Wildlife in Agriculture may be better understood when explored from the perspective of Resource Domestication. Relocation of a resource from its natural habitat into human-controlled environments represents an initial phase in the process of domestication. The final phase of Resource Domestication entails selection of desired production traits in established populations through breeding programs. A more complex relationship emerges in the course of transforming a wild plant into a crop or a wild animal into a livestock. The new relationship between a resource and its domestic form served as the framework for understanding Biodiversity and Wildlife in Agriculture.
Abstract: Biodiversity and Wildlife are relatively recent concepts in Agriculture. However, the meaning of each concept remains to be clearly distinguished from similar concept in Natural Resource Conservation. The concepts of Biodiversity and Wildlife in Agriculture may be better understood when explored from the perspective of Resource Domestication. Reloc...
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Cultivation Technique of Seedling Used for Raw Material of Fetal Tea
Ren Cui-juan,
Zhou Jia-shuang,
Pan Jie,
Ye Qun,
Jiang Jin-zhong
Issue:
Volume 4, Issue 2, March 2016
Pages:
30-34
Received:
3 May 2016
Accepted:
Published:
4 May 2016
Abstract: Fetal tea is a new type of tea made from seedling before its big euphylla come into leaf. So the yield and quality of seedling used for raw material of fetal tea directly affect the fetal tea yield and quality; the main purpose of this paper is to explore the effect of full light, half light and dark conditions on the growth of seedling used for raw material of fetal tea, and to provide a reference basis for the production of seedling with high quality. The tea tree seeds were cultivated with water under full light, half light and dark conditions, respectively; Then quadrats were set to observed regularly germination state of seed, growth of baconic and germ, meanwhile growth of root, stem, leaf, euphylla of “germ seedling”; By comparing the difference between different illumination conditions, the appropriate light conditions were selected as follows. The number and speed of seed crack were 27.0% and 63.4% higher under full light than under dark conditions and half light, respectively; Meanwhile the number of seed crack was 28.6% higher under dark conditions than under half light. As a result, the full light was the best for cultivating seedling used for fetal tea, dark condition was middle, and half light was worst. The baconic elongation of seed were 87.7% and 93.7% higher under full light than half light and dark condition, respectively, while 3.1% higher under half light than dark condition; therefore, full light was the best condition to promote baconic growth, half light was second, dark condition was the worst. The growth length of germ were 76.0% and 92.0% lower under half light and under dark condition than under full light, respectively, while 66.6% lower under dark condition than under half light, hence, full light was the best condition to promote germ growth, half light was second, and dark condition is the worst. Based on above results, it was concluded that cultivating tea seed with water under full light can obtain higher output of seedling used for raw material of fetal tea.
Abstract: Fetal tea is a new type of tea made from seedling before its big euphylla come into leaf. So the yield and quality of seedling used for raw material of fetal tea directly affect the fetal tea yield and quality; the main purpose of this paper is to explore the effect of full light, half light and dark conditions on the growth of seedling used for ra...
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Chemical Composition, Bio-Diesel Potential and Uses of Jatropha curcas L. (Euphorbiaceae)
Issue:
Volume 4, Issue 2, March 2016
Pages:
35-48
Received:
5 April 2016
Accepted:
18 April 2016
Published:
6 May 2016
Abstract: This review paper focuses some basic aspect of the taxonomic, biology, cultivation, chemical composition, bio-diesel potential, medicinal values and uses of Jatropha curcas Linn. The genus Jatropha is distributed throughout the tropics and sub-tropics growning in marginal lands and is a potential biodiesel crop worldwide. Due to its adaptability to marginal soils and environments the cultivation of Jatropha curcas is frequently mentioned as the best option for producing biodiesel. The seed oil can be used as a feed stock for biodiesel. Alternatively Jatropha oil is used in soap, glue or dye industry. The seed cake is rich in nitrogen and phosphorus and can be used as manure. Ash from the roots and branches of Jatropha curcas L. is used as cooking salt, and as lye in dyeing. The dark blue dye extracted from the bark of Jatropha is a useful dye. The plant parts and its oil along with its latex used for different reasons such as pesticides, anti-inflammatory activities, wound healing, lighting (lamp), bio-gas production, fertilizer and other purposes. The objective of this review paper focuses some basic aspect of the taxonomic, biology, cultivation, chemical composition, bio-diesel potential, medicinal values and uses of Jatropha curcas Linn.
Abstract: This review paper focuses some basic aspect of the taxonomic, biology, cultivation, chemical composition, bio-diesel potential, medicinal values and uses of Jatropha curcas Linn. The genus Jatropha is distributed throughout the tropics and sub-tropics growning in marginal lands and is a potential biodiesel crop worldwide. Due to its adaptability to...
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Floristic Composition and Vegetation Structure of Woody Species in Lammo Natural Forest in Tembaro Woreda, Kambata-Tambaro Zone, Southern Ethiopia
Melese Bekele Hemade,
Wendawek Abebe
Issue:
Volume 4, Issue 2, March 2016
Pages:
49-55
Received:
22 December 2015
Accepted:
13 January 2016
Published:
12 May 2016
Abstract: This study was conducted to investigate the floristic composition of woody species in Lammo natural Forest, Tembaro woreda, Kembata-Tembaro zone, Southern Ethiopia. 52 quadrants, each with 20 m x 20 m (400 m2) were systematically laid to collect vegetation data along line transects at the distance of 60m from each other. Vegetation structures such as DBH, basal area, height, frequency, IVI and Species population structure were computed. Specimens were collected, pressed, dried and taken to Ethiopian National Herbarium for identification. Data analysis was carried out using Shannon-Wiener Diversity index, Microsoft Excel, R-package, past and Sorensen’s similarity index. 54 woody species belonging to 46 genera from 29 families were identified. The dominant family was Myrtaceae followed by Euphorbiaceae. The vegetation cluster classification resulted in three plant communities. Most of the species in the study area fall under middle diameter and height classes. The results of population structure for the forest, revealed the signs of some disturbances and hence some management and conservation practices need to be in place.
Abstract: This study was conducted to investigate the floristic composition of woody species in Lammo natural Forest, Tembaro woreda, Kembata-Tembaro zone, Southern Ethiopia. 52 quadrants, each with 20 m x 20 m (400 m2) were systematically laid to collect vegetation data along line transects at the distance of 60m from each other. Vegetation structures such ...
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