A5104883370- Plant Pathogens and Resistance
- Wheat and Barley Genetics and Pathology
- Plant Pathogens and Fungal Diseases
- Plant Disease Resistance and Genetics
- Agriculture, Plant Science, Crop Management
- Powdery Mildew Fungal Diseases
- Fungal Plant Pathogen Control
- Plant pathogens and resistance mechanisms
- Plant-Microbe Interactions and Immunity
- Agronomic Practices and Intercropping Systems
- Nematode management and characterization studies
- Plant Virus Research Studies
- Mycotoxins in Agriculture and Food
- Genetics and Plant Breeding
- Potato Plant Research
- Crop Yield and Soil Fertility
- Insect-Plant Interactions and Control
- Berry genetics and cultivation research
- Growth and nutrition in plants
- University-Industry-Government Innovation Models
- Agricultural Productivity and Crop Improvement
- Botany and Plant Ecology Studies
- Genetic and Environmental Crop Studies
- Service-Learning and Community Engagement
- Public Health Policies and Education
University of Copenhagen
1999-2020
Royal Ottawa Mental Health Centre
1970
Royal Agricultural University
1970
Near‐isogenic lines differing in resistance genes were developed to study the effects of barley ( Hordeum vulgare L.) giving specific powdery mildew Erysiphe graminis DC f.sp. hordei Em. Marchal). This paper describes breeding techniques, degree similarity between isolines, and present isolines. Twenty‐four donors crossed backcrossed five times spring cv. ‘Pallas’, homozygous resistant BC 5 F 2 plants selected. Resistant evaluated selected for phenotypic with recurrent parent 3 , through 7...
Abstract A radical shift in our approach to crop production is needed ensure food security and address the problems of soil degradation, loss biodiversity, polluted restricted water supplies, coupled with a future fossil fuel limitations increasingly variable climatic conditions. An interdisciplinary network European scientists put forward visions for embracing complexity socio‐ecological system by applying principle diversity at all levels from micro‐organisms plant varieties cropping...
The influence of increasing nitrogen supply (30, 60, 120 and 240 mg N per pot) on susceptibility was studied seedlings six cultivars spring barley inoculated with virulent isolates powdery mildew. colony density (CD) measured as colonies cm 2 significantly increased application all cultivars, a significant interaction found between cultivar. different reactions the could not be ascribed to lack uptake. In general, enhanced sporulation capacity (CSC) irrespective CD cumulative production...
Alternaria leaf blight disease caused by brassicae in mustard (Brassica juncea (L)Czern and Coss) was studied two crop seasons, 1992 1993 Nepal at Nawalpur, Sarlahi(Tarai) Khumaltar, Lalitpur (mid hill). At epidemics of the recorded forboth seasons. Weather conditions like humidity, temperature frequent rainfall played key rolefor epidemics. In experimental fields, appeared first mid-December when therelative humidity more than 80% with maximum ranging between 18-25°C andminimum 10-14°C....
Superiority of yield in cultivar mixtures may be ascribed to specific and nonspecific resistance against leaf pathogens differential reactions components environment. This study was conducted investigate the significance on powdery mildew ( Erysiphe graminis DC.: Fr. f. sp. hordei ) severity grain barley Hordeum vulgare L.) multilines isolines, each carrying different genes for mildew. Multilines were composed equal proportions four or five isolines. In multilines, disease levels 50 80%...
Experiments were conducted to determine whether preemergence infection of potato sprouts by Phytophthora infestans occurs in the highland tropics Ecuador. In three separate experiments field, P. was identified on preemerged 49, 5, and 43% tubers, respectively, which had been removed from soil prior emergence. Tubers planted within 10 m approximately 300-m2 plots with mature plants severely infected late blight. Infection potential also evaluated greenhouse applying 10-ml sporangial...
Abstract Twenty doubled haploid broccoli lines from breeding material were evaluated for resistance to Peronospora parasitica at the seedling stage. All supported sporulation of pathogen but varying extents and intensities. Partial more resistant lines,‘br8’and ‘br9′, reduced conidia production on cotyledons by 50‐70% compared with most susceptible lines. Inoculation two 13 isolates different geographical origins revealed that showed a rather uniform level all while ‘br8’showed some isolate...
Alternaria brassicae, the causal organism of leaf blight rapeseed and mustard survived in seeds stored room temperatures (11-25°C) for 10 months at 30°C an incubator 6 months. These storage are found respectively midhills terai regions country during seeds. The fungus least one year 5 10°C but it was eliminated after 2 40°C. did not survive more than month crop debris buried under soil. However, isolated 3 from placed on soil two locations, Khumaltar Nawalpur. After temperatures, to only....
Potatoes in Greenland are produced the southwestern region, mainly along fjords of west coast between 60° N and 61.5° N. No production certified seed potatoes has been established country Greenlandic farmers use either tubers imported primarily from Denmark The Netherlands or home-saved tubers. Planting takes place late May mid-June. Shortly after planting, potato field is normally covered with acrylic plastic sheets to increase temperature during cultivation. harvest period mid-August...