Archive for September, 2014

Specific Growth and Micro Elements Absorption of Orange Jasmine Under the Iron Deficient Environment

Presented by Cahyowulandari; Date 2014/01/15

Some calcareous soils are not suitable for citrus growth, including in Indonesia.  The best alternative for this type of soil is to introduce Fe to fertilize it for sustainable citrus farming.  Orange jasmine, Murraya sp, use Fe efficiently.  This research objective is to explore iron deficient tolerance response and soil calcareous.  Experiment 1 shown that increase of root biomass compare to those under sufficient Fe condition and flying dragon tended to decrease.  Meanwhile, experiment 2 shown that root growth of orange jasmine tent to increase under Fe condition.  And experiment 3 pointed out that orange jasmine could maintain the dry weight and total plant weight.  As a conclusion, food biomass increasing was since in calcareous soil as similar as in Fe deficient and it can grow in low level Fe and micro element.

Sustaining the Agricultural Production System and Environment by Integrative Science: A Case Study from Cassava Production

Presented by Suhenet Nakasuthian; Date: 2012/11/03

Cassava demand has increased in the world for both consumption and industry.  Mainly cassava find and plant in tropical country around the world.  Cassava is the important agricultural product in Thailand due to the fact that cassava has effects in agricultural sector and the linkages to manufactures as well.  Thailand’s cassava production was exported to many countries and it has become the first rank in the world.  Thailand market share on cassava export in 2009 was 83.00%, followed by Vietnam, Indonesia, China and Brazil.  Nowadays, Thailand can produce 21 ton/ha/crop/year.  The objective of this research is to put tremendous effort or number of strategies imposing on the improvement programs covering the breeding, crop physiology, production, and pest management.

The result shown that the cassava root yield is delivered from the exotic fruits in germ-plasma collection.  In addition,  the current exotic cassava lines still need the good agriculture practice to pave their ways to success for the high final harvesting.  The program of cassava improvement also accommodate  under planting area and different groups of cassava producer, from the small farms holders to the industrial scale production.  Reducing chemical using is needed by develop integrative strategies of green and environmentally production systems.

As a conclusion, some case of cassava production in Thailand, they encompass all dimension a wide range of agricultural science, basic science, economics and social science.  And It is also need maintaining the balance on socioeconomic of the country to produce cassava in the future.

Marine Protected Area Management in Thailand: Chalenges and Solution

Presented by Suchai Worochananant; Date 2012/11/02

Thailand covers 514,000 square km with a coastline of 3,000 km.  This country has over 1.700 globally threatened species including several critically endangered mammal, bird, reptile, fish and plants.  Thailand marine life is equally rich and substantially different species assemblages occur in the waters on either side of the narrow Thai Peninsula.  About 35 species of mangrove and 12 species of seagrass have been reported with 5 species of turtle as well as dugong also found in this area.

To protect the endangered species in marine area, Thailand Government was established marine protected area more than five decades ago.  Now, MPA has covered 12% of marine and coastal area and it also reported as protected under the jurisdiction of a number of government agencies.  Thailand Government had a plan to increase MPA, accounting for 30%.  Therefore, there is a need to classify more clearly what the overall visions is for Thailand’s MPA and how they will contribute to national biodiversity conservation and sustainable development strategies.

Thailand’s MPA include a diverse range of characteristics, from coastal area to remote island; with no local community inhabitants to area with dense population, and areas with a few thousand visitors per year to those with more than 300,000 visitors per year.  The habitat composition in Marine Parks also range widely, from the domination of coral reefs to seagrass and mangrove.

Though Thailand’s MPA system seems to be expanding and evolving, there are some obstacles which limit the success of the system including obsolete legislation, the lack of master plan for MPA, the uncontrolable illegal fishing, the lack of collaboration among management agencies, escalating pressure of tourism and threatening natural phenomena such as the global warming or tsunami.

In Organic Performance and National Quality of Low Phytic Acid Crops

Presented by Dr. Victor Raboy; Date 2012/11/13

Phytic acid (myo-inositol-1,2,3,4,5,6-hexakisphosphate, or Ins P6) is the most abundant storage form of P in seeds, yet indigestible by humans and nonruminant livestock. PA is considered as an anti-nutrient in food, agriculture, and nutritional sciences. The role of PA as a food anti-nutrient motivated research aimed at reducing the PA content of commonly eaten foods through food processing, genetic engineering, and plant breeding.

A number of issues concerning the nutritional quality of grains and legumes revolve around the seed phosphorus storage compound called phytic acid. This phenomenon can contribute to human mineral deficiency, particularly with respect to iron and zinc. Dietary phytic acid may also have beneficial health roles, for example as an antioxidant or anticancer agent.

This research focus on amount and composition of biochemistry in agricultural proponent.  Main problem in agricultural product for human are: (1) don’t be effectively digest PA, (2) It buried tightly no mineral caution, and (3) these phytate salt are excrete malate by major grain and legume crops, and other agricultural product have been produced by fertilizer factory.

In fact, by using phosphate fertilizer can cause water pollution, which is called eutrophication.  Finally, most important issues in the world is supplies of phosphate for fertilizing of feeding may occur on 50-150 years later.  Now, many studies have conducted for animal and human phosphate acid.  As a result, the low phytic acid seed plant type and nutrionally in ruminant of animal.  The effect of barley grain pyrite level and supplemental zone on chick phobia zone in 21 days of age.

As a summary, numerous animal studies evaluate low phytic acid have shown that reduced phytic acid translated into available phosphate and declined phosphate waste.

Population Structure and Evaluation of Amphidromous Gobus in Central Pacific: What We Know about it today

Presented by Kiril Vinnikov; Date: 2012/07/04

In Indo-Pacific , insular river systems are colonized by Gobiidae with a life cycle adapted to the conditions in these distinctive habitats which are young oligotrophic rivers and subject to extreme climatic and hydrological seasonal variation.  These species spawn in fresh waters, the free embryos drift downstream to the sea where they undergo a planktonic phase before returning to the rivers to grow and reproduce, hence they are termed amphidromous.  Their biological cycle and the parameters leading to such extreme evolution in amphidromous gobies are poorly known, despite the fact that these gobies contribute most to the diversity of fish communities in Indo-Pacific insular systems and have the highest levels of endemism.  In Indo Pacific, A. gobies belong to the genus Lentipes, Sicyopterus, Stiphodon, Stegnogobius, Schismatogobius, and Rhinogobius.  They comprise nearly 170 species.

One species of gobies fish is Amphidromous gobus.  As unique species, A. gobus need to study more, in particular about biological systematic to answer the question who, what, where, when, and why.  This species can be classified into genus Stenogobius.  It has life cycle in stream, estuary and ocean (to release eggs and larvae).  The advantage of A. gobus adaptation can  colorization of new bio-tic area and survival in unstable environment.  There are 31 species which distribute in Indo Pacific to Southeast Asia.

Several step is need to study more about A. gobus,  First step, it is needed to learn about biological systematic by using phylogenetic or DNA.  To know the structure, many scholars use DNA method.  Second step, behavior of this species need to observe. Third step, to observe marine larvae of A. gobus how it disperse inside freshwater of the island during single life cycle or why it stayed near Natal Stream.

As a conclusion, based on the population structure of A. gobus, this research recommended to revise taxonomy status and conservation strategies.