Arbuscular mycorrhizal fungi (AMF) are soil-borne that form mutualistic symbiosis with plant roots, and can signifi cantly improve nutrient uptake increase resistance to several biotic abiotic stresses. Though most rice cultivation systems involved submerged growing conditions, researchers exploring the potential of AMF colonization its benefi ts for rice. has a serving as biocontrol agent in p...

The worldwide increase in population continues to threaten the sustainability of agricultural systems since output must be optimized meet global rise food demand. Sub-Saharan Africa (SSA) is among regions with a fast-growing but decreasing crop productivity. Pests and diseases, as well inadequate nitrogen (N) levels soils, are some biggest restrictions production SSA. N one most important plant...

Pythium genus includes significant and destructive soil borne plant pathogens causing losses on many plants, especially by root rot damping-off diseases. Like other pathogens, control of the diseases caused this group is rather difficult. Usually fungicides are used against species, but investigations alternative methods chemicals gained importance because harmful effects pesticides human healt...

Global warming causes drought in some area and simultaneously fl oods in other areas (IPCC, 2001). Such climate changes lead to excess and poor salt concentrations in soil in the corresponding areas, respectively. Zahran (2001) reports serious effects on microfl ora including rhizobia because of salt concentrations in soil. Salt content in soil also strongly affects plant growth and productivit...

b a ckground: a field study on diversity and distribution of anophelines currently present in a past endemic malaria area of spain was carried out in order to identify possible risk areas of local disease transmission. m e t hods: multiple larval sites were sampled from june to october of 2011 in the region of somontano de barbastro (northeastern spain). the sampling effort was fixed at 10 minu...

Growing potatoes (Solanum tuberosum) using the idle rice fields in Southern China and Indo-Gangetic Plains of India winter season through rice–potato rotation (RC) system could support future food security. However, modulation capacity RC on soilborne fungal pathogens is still unclear. In current study, a pot experiment was designed conducted to monitor dynamics soil community composition betwe...

Among the diseases of cowpea, web blight caused by Rhizoctonia solani Kuhn is most serious soil borne disease which causes severe yield loss. A field trial was conducted during kharif 2016 to manage cowpea at ARS SKRAU, Bikaner. Combination T. harzianum plus B. subtilis used as seed treatment (5 + 5 g/kg) and application (5+5 kg/ha) proved be effective against incited R. in conditions provided ...

Silicon plays an important role in providing tolerance to various abiotic stresses and augmenting plant resistance against diseases. However, there is a paucity of reports about the effect of silicon on bacterial and viral pathogens of plants. In general, the effect of silicon on plant resistance against bacterial diseases is considered to be due to either physical defense or increased biochemi...

In vitro studies with Trichoderma spp., soil-borne fungal antagonists, demonstrated that a number of isolates produced volatile and non-volatile metabolites capable of inhibiting the growth and sporulation of several soil-borne plant pathogenic fungi. Microscopic observations showed that T. harzianm and T. viride, isolated from soil samples from Ahwaz and Karaj, adversely affected the myce...