We evaluated 38 dura x pisifera (DP) oil palm progenies in four locations in Malaysia for genotype by environment interaction and genotypic stability studies. The DP progenies derived from crosses between pisifera palms of AVROS, Serdang S27B, Serdang 29/36, and Lever Cameroon were chosen to be the males' parent and Deli dura palms designated as females' parent. All the locations differed in te...

cation exchange capacity and specific surface area are among some of the important soil characteristics the direct measurement of which is laborious, costly and time consuming. therefore, fractal dimension of particle size distribution has been widely studied in relation with many such dynamic and static processes as transmission of water and solutes, water holding capacity, heat storage and co...

[1] We studied soil properties of frost boils at nine zonal-vegetation locations across the North American Arctic Transect (NAAT) in order to better understand arctic soils and their interaction with other biogeophysical components of frost boil ecosystems. Soil genetic horizons were analyzed for particle size, pH, electrical conductivity, total organic carbon (OC) and nitrogen (N), bulk densit...

Topraklar üzerinde olu?tuklar? ana materyale, iklim ko?ullar? ve topo?rafik yap?ya ba?l? olarak önemli farkl?l?klar gösterirler. Adli bilimde de olan bu farkl?l?klar?n belirlenmesi daha fazla arazi laboratuvar çal??malar?na ihtiyaç duyar da i? gücü, kimyasal kullan?m? zaman gerektirir. Öteki taraftan Görülebilir Yak?n K?z?lötesi Spektroradyometre (VNIRS) Tekni?i gibi yakla??mlar topraklar?n h?z...

BACKGROUND While short-term effects of parent training (PT) have been extensively evaluated, long-term outcome and present predictors of a diagnosis for children with ODD/CD treated with parent training are very limited. METHOD In the present study, diagnostic status as outcome and predictors of treatment response were examined in a 5-6-year follow-up. Out of 99 children who had been treated ...

In this study, we report on the distribution and mineralogy of micron-sized mineral aggregates formed in the top horizon of an acid sulfate soil. The distribution and oxidation state of arsenic (As) and selenium (Se) were also determined. The soil used in this study was formed from pyritic shale parent materials on the east side of the California Coast Range. Synchrotron-based X-ray fluorescenc...

In the process of analyzing aerial photographs to obtain information on the engineering characteristics of soils, the first and perhaps the most important step is to identify the landform. The landform may consist of hills, valleys, plains, terraces, beaches, dunes, and other topo­ graphic features largely created by the forces of erosion. The im­ portance of the landform lies in its relation t...

Spatial variability of soil fluoride in the plough layer 0~20cm of paddy soil from Hang-Jia-Hu Plain of Zhejiang Province in China was studied using geostatistical analysis and GIS technique. The results of Semivariograms analysis showed that two forms of soil fluoride were correlated in a given spatial range, and total fluoride (T-F) was controlled by intrinsic factors of parent material, reli...