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Food and Agriculture Organization; Common Agricultural Policy; North American Free Trade Agreement; exports; globalization; imports; supply balance; consumer demand; consumer preferences; food choices; vegetables; fruit juices; Europe; South Asia; South East Asia
Oryza sativa; bitumen; concrete; flooded conditions; grain yield; iron; nutrient uptake; redox potential; rice; water requirement; water use efficiency; South East Asia
Abstract:
... Growth of rice (Oryza sativa) under flooded conditions in Southeast Asia results in excessive water and N losses. This investigation was conducted to determine the effect of subsurface barriers of bitumen and concrete on yields of rice grown with 60, 90, and 120 kg/ha of N. Yields of rice grown over the subsurface barriers were significantly higher than those grown on the control. The increase in ...
Oxisols; alluvial soils; aluminum; clay; climate; exchangeable magnesium; loess; magnesium; silicates; solubility; tropical soils; Illinois; Sierra Leone; South East Asia
Abstract:
... A scheme was developed for fractionating soil Mg into exchangeable, organic-complexed, acid-soluble, and primary mineral forms. The scheme was tried out on 20 soils from different regions of the world. Magnesium content was influenced by the nature of the parent materials, climate, and age of the soil. There was more Mg in youthful alluvial soils from Southeast Asia as well as loess and till-deriv ...
Oryza sativa; ammonium sulfate; application rate; cultivars; dry season; farmers; farms; field experimentation; grain quality; grain yield; harvest date; heading; lodging; milling quality; nitrogen; protein content; rice; split application; viability; wet season; South East Asia
Abstract:
... Since the development of high yielding tropical rice (Oryza sativa L.) cultivars like ‘IR8,’ attention has turned to the differences in grain quality among rice cultivars. In field experiments at the IRRI farm, we studied the optimum time for applying nitrogen to rice cultivars for maximum grain yield, highest milling yield, and maximum seed viability. We applied ammonium sulfate at 60 kg/ha N in ...
Lepidoptera; allopatry; butterflies; species richness; Africa; South America; South East Asia
Abstract:
... Data are presented showing the number of butterfly species present in areas of different size. The species, area curve for South America starts at a higher value than that for Africa, indicating a greater species richness in a small area. It is also steeper, which indicates that there are more allopatric species. The relation for south-east Asia is more like that for South America than Africa. ...
Poecilia; discoloration; females; fish; laboratory animals; mortality; muscular diseases; risk; steatitis; vitamin E deficiency; South East Asia
Abstract:
... There was 1% mortality among female guppies just imported from Southeast Asia. Moribund fish showed discoloration, lethargy and kyphosis. Microscopically, myopathy and steatitis were observed, together with an extensive ceroid storage. These findings are indicative of vitamin E deficiency, and illustraee the risk of using fish of unknown origin in toxicological studies. ...
Bradyrhizobium japonicum; Glycine max; Japan; Rhizobium; ecotypes; genes; nodulation; serotypes; soybeans; symbiosis; China; South East Asia
Abstract:
... A sample of soybean [Glycine max (L.) Merr.] plant introductions from Asia, representing maturity groups 00 through X, was tested for the presence of the Rj₂ and Rj₄ genes. Both of these genes condition ineffective nodulation responses: Rj₂, specifically with the cl and 122 serogroups of Rhizobium japonicum; Rj₄, with R. japonicum strain 61. Rj₂ was present in 19 of the 851 fines tested. The 19 li ...
Fabaceae; computers; databases; hardwood; legumes; wood anatomy; Australia; South East Asia
Abstract:
... A wood anatomical key based on macroscopic and microscopic features has been developed for identification of the commercial Leguminosae of southeast Asia and Australia. All anatomical details are in accord with the standard list of characters suitable for computerised hardwood identification. Data on 39 species of 13 genera are included, which have been entered into the computer data base housed a ...
Asclepias syriaca; bleaching; cotton; fabrics; physical properties; silk; textile fibers; yams; South East Asia
Abstract:
... Experimental fabrics have been knitted from high level blends of cotton and common milkweed fibers. The milkweed fiber (Asclepias syriaca), often called "vegetable silk," is a seed floss that is similar to the Rux fiber (Caleotropis gigantea) of Southeast Asia. The physical properties of the milkweed fiber, its morphology, and the properties of the blended yams and fabrics are described. The respo ...
Oryza sativa; ammonia; ammonium sulfate; band placement; calcareous soils; clay loam soils; dry season; farmers; fertilizer application; fertilizers; fractionation; grain yield; isotope labeling; nitrogen; partial pressure; rice; rice soils; split application; stable isotopes; straw; urea; water management; wet season; South East Asia
Abstract:
... Large areas of lowland rice (Oryza sativa L.) soils in South and Southeast Asia are calcareous. Field studies in the 1983 dry and wet seasons evaluated the effects of N source and application method on N loss and N utilization in a calcareous clay loam soil using the ¹⁵N-balance technique. In the 1983 wet season and the 1984 dry season, crop recovery of the residual ¹⁵N remaining after the first c ...
Argiudolls; Oryza sativa; agronomy; bulk density; clay; clay loam soils; clay soils; evapotranspiration; grain yield; irrigation scheduling; minimum tillage; no-tillage; puddling; resistance to penetration; rice; root growth; seepage; site preparation; soil density; soil penetration resistance; temperature; water table; wetlands; South East Asia
Abstract:
... Fuddling is the most common method of land preparation for wetland rice (Oryza sativa L.) in south and southeast Asia. While this method has certain advantages, it is time-, energy-, and capitalintensive. The objective of this study was to identify time-, energy-, and capital-efficient tillage techniques for sustained productivity of wetland rice soils. The effects of different land preparation te ...
afforestation; forest trees; seeds; seed quality; development projects; extension education; international cooperation; international organizations; Canada; South East Asia
Abstract:
... The ASEAN-Canada Forest Tree Seed Centre Project is a key development initiative by Canada in addressing the growing deforestation problems in tropical regions. The Centre was established in 1981 as a cooperative venture between Canada and the Association of Southeast Asian Nations to help overcome difficulties in acquiring and producing operational quantities of high quality seed and planting mat ...
geographical distribution; albumins; seeds; Vigna radiata; genetic variation; line differences; globulins; plant proteins; India; South East Asia
Abstract:
... Seed protein of 581 local strains of mung bean, Vigna radiata (L.) Wilczek, collected from throughout Asia, were analyzed by SDS-polyacrylamide gel electrophoresis. Eight protein types were recognized based on the combination of four albumin bands and three globulin bands. The frequency of each protein type strain showed a clear geographical cline. The pattern of geographical distribution of the p ...
seeds; tropical and subtropical fruits; methodology; storage; genetic resources; South East Asia
Abstract:
... There are over a hundred species of edible tropical fruits in South East Asia. These species are propagated vegetatively or by seeds. Seeds of tropical fruits are classified into two groups - the orthodox and the recalcitrants. Orthodox seeds such as papaya, bananas, guava and ciku are not desiccation sensitive hence can be dried and stored in a seed bank at subzero temperatures for a couple of ye ...
geographical distribution; ethnobotany; Morinda citrifolia; medicinal properties; dyes; plant ecology; dye plants; Australia; South East Asia; Latin America; Pacific Ocean Islands
Abstract:
... The genus Morinda embraces about 80 species, mostly of Old World origin.M. citrifolia L. (southern Asia Australia), noted as a source of dye and edible leaves, has buoyant seeds that float for many months and commonly appears in the Pacific and also in tropical America where M. royoc L., piña de ratón, is indigenous, inhabits inland hammocks and pinelands as well as seacoasts, and is also one of t ...
enzyme polymorphism; seedlings; diploidy; phenotype; open pollination; genetic distance; germplasm; cultivars; triploidy; Musa balbisiana; provenance; isozymes; cryopreservation; geographical variation; genetic variation; tetraploidy; Musa acuminata; chemical constituents of plants; electrophoresis; South East Asia; Hawaii
acid soils; acid sulfate soils; phosphates; sorption; desorption; phosphorus; sorption isotherms; kinetics; soil properties; correlation; thermodynamics; nutrient availability; South Asia; South East Asia
Abstract:
... The equilibrium phosphate sorption and release behavior and the kinetics of adsorption were studied in some acidic soils of South and Southeast Asia. Phosphate sorption data at 25 °C were fitted to the Tempkin, Freundlich, and Langmuir adsorption isotherms. The soils varied widely in their capacity to sorh and retain P. During desorption, the amount of sorbed P at a given equilibrium P concentrati ...