East African Blackwood is the common name for Dalbergia melanoxylon, the most valuable timber growing in the Miombo woodlands of southern Tanzania, and a potential flagship species to justify conservation of this habitat. The population density, structure and exploitation of this economically and socially important species were studied in an area of southern Tanzania. Harvestable timber was fou...

Fuelwood is the principal energy resource for mil­ lions of households around the world, yet its use, availability and management remain poorly understood in many areas. We document fuelwood consumption, growth/yield and standing biomass in a Bhutanese village and alpine area used season­ ally by villagers where the government is concerned about harvesting in a recently designated national park...

Timber harvesting from the tropical rainforests of north Queensland ceased following their inscription on the World Heritage List in 1988. The cessation of logging was due to a political ban, not due to exhaustion of the resources. There is no evidence to suggest that logging could not be sustained. Rather, there are growing evidences to suggest that the polycyclic selection system could have s...

Runoff constitutes one of the major water losses from agricultural fields in semi-arid areas. However, by adopting appropriate soil management practices, the runoff can be harnessed for improving crop yields. The main objective of this study was to quantify rainfall-runoff relationships under in-field rainwater harvesting (IRWH) using simulated rainfall, and to compare these results to those ob...

Segregating F4 families from the cross between drought sensitive (Yecora Rojo) and drought tolerant (Pavon 76) genotypes were made to identify SSR markers linked to leaf chlorophyll content, flag leaf senescence and cell membrane stability traits in wheat (Triticum aestivum L.) under water-stressed condition and to map quantitative trait locus (QTL) for the three physiological traits. The paren...

this study was carried out in order to identify the effects of soil water depletion (swd) on monogerm sugar beet (cv. shirin) seed growth trend at different growth stages. an experiment was conducted in randomized complete block design (rcbd) with three replications in ardebil agricultural research station. during 2002 and 2003 cropping seasons, nine treatments including control (irrigation aft...

A family of receptor subtypes, defined either by molecular (m1-m5) or pharmacological (M1-M4) analysis, mediates muscarinic cholinergic neurotransmission in brain. The distribution and functions of the m3 receptor protein in brain and its relation to M3 ligand binding sites are poorly understood. To better characterize the native brain receptors, subtype-specific antibodies reactive with the pu...

The article presents a study of water consumption rice crops during periodic watering in various interphase periods the growing season. experiments were carried out on plot 21.2 hectares rice-growing enterprise RBF "Krasnoarmeysky", geographically located Kuban irrigation system. object was an intensive variety Rapan Russian selection. subject regime season rice. It found that transition to int...