Assessment of Spatial Variation Soil Physical Quality in a Rapeseed (Brassica napus) Field Bilavar, Kermanshah

The Brassica genus comprises many economically important worldwide cultivated crops. The well-established model of the Brassica genus, U's triangle, consists of three basic diploid plant species (Brassica rapa, Brassica oleracea, and Brassica nigra) and three amphidiploid species (Brassica napus, Brassica juncea, and Brassica carinata) that arose through interspecific hybridizations. Despite be...

Clubroot, caused by Plasmodiophora brassicae Woronin, is an important disease of canola (Brassica napus L.) that managed mainly planting clubroot-resistant (CR) cultivars. Field isolates P. can be heterogeneous mixtures various pathotypes, making assessments the genetics host–pathogen interactions challenging. Thirty-four single-spore were obtained from nine field pathogen collected CR The viru...

Inclusion of conventional dark-seeded (Brassica napus) and novel yellow-seeded (Brassica juncea) canola meal (CM) can potentially replace soybean (Glycine max) meal (SBM) in pig diets. Our objective was to examine the preference of weaned pigs fed diets containing SBM or B. napus or B. juncea CM and to compare it against previously reported growth performance data (Exp. 1 and 2). In Exp. 1 and ...

biological characteristics of chrysoperla carnea (stephen.) fed on hyalopterus pruni (goff), brevicoryne brassicae (l.) and aphis pomi (degeer) were studied under laboratory conditions. developmental time of c.carnea on the above mentioned aphids were 24.75, 25.77 and 30.75 days, respectively. preimeainal mortality was 60.69, 43.75 and 63.1%, respectively. female longevity of c.carnea was equal...

Different field surveys have shown that sulphur (S) fertilization can increase the resistance of agricultural crops against fungal pathogens. The mechanisms of this sulphur-induced resistance (SIR) are, however, not yet known. Volatile S compounds are thought to play an important role because H(2)S is toxic to fungi. A field experiment was conducted to analyse the influence of S fertilization a...

Little is known about how drought stress influences plant secondary metabolite accumulation and how this affects plant defense against different aphids. We therefore cultivated Arabidopsis thaliana (L.) plants under well-watered, drought, and water-logged conditions. Two aphid species were selected for this study: the generalist Myzus persicae (Sulzer) and the crucifer specialist Brevicoryne br...

The relationship between root morphological and physiological responses to variable P supply in different plant species is poorly understood. We compared root morphological and physiological responses to P supply in seven crop species (Zea mays, Triticum aestivum, Brassica napus, Lupinus albus, Glycine max, Vicia faba, Cicer arietinum) treated with or without 100 mg P kg-1 in two soils (acidic ...