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Impact of potato psyllid density and timing of infestation on Zebra chip disease expression in potato plants
Bactericerca cockerelli carbohydrates reducing sugars glucose fructose sucrose starch
2016/9/2
The impact of vector density and timing of infestation on potato were investigated. Healthy potato plants at different growth stages (4, 5, and 7 weeks after germination) were exposed separately to fo...
Sugar beet yield loss predicted by relative weed cover, weed biomass and weed density
crop–weed interaction weed competition yield loss function
2017/4/6
Sugar beet yield loss was predicted from early observations of weed density, relative weed cover, and weed biomass using non-linear regression models. Six field experiments were conducted in Germany a...
Patterns and Severity of Crown Dieback in Young Even-Aged Stands of European Ash (Fraxinus excelsior L.) in Relation to Stand Density, Bud Flushing Phenotype, and Season
Hymenoscyphus pseudoalbidus crown damage
2015/3/10
The extent and temporal pattern of crown damage (attributed to Hymenoscyphus pseudoalbidus) in even-aged stands of
Fraxinus excelsior in relation to bud flushing phenotype, stand density, and season...
A Practical Estimating Method of the Dose-Response Curve between Inoculum Density of Plasmodiophora brassicae and the Disease Severity for Long-term IPM Strategies
clubroot crop rotation disease control population dynamics
2010/10/25
A model was developed to evaluate long-term temporal changes in disease severity (DS) of the clubroot disease of Chinese cabbage in the field with various management strategies. The model consists of ...
EFFECT OF SOWING DENSITY, HERBICIDES AND HARROWING APPLICATION ON YIELD AND CONTENT OF TOTAL PROTEIN AND STARCH IN ‘WANAD’ SPRING TRITICALE KERNELS
spring triticale yield of kernels and protein starch sowing density herbicides harrowing
2009/3/30
The aim of the present study was to determine the effect of three levels of the sowing density: 500, 670 and 750 kernels per square meter and two herbicides: Arleon 75 WP and Puma Super 069 EW and har...
The effect of conservation primary and zero tillage on soil bulk density, water content, sugar beet growth and weed infestation
conservation primary zero tillage soil bulk density water content sugar beet growth weed infestation
2010/1/18
The effect of conservation primary and zero tillage on soil bulk density, water content, sugar beet growth and weed infestation.
Spectral Sensing of Aphid（Hemiptera：Aphididae）Density Using Field Spectrometry and Radiometry
Remote sensing spectral indices multispectral radiometry hyperspectral spectrometry greenbug (Schizaphis graminum Rondani) wheat (Triticum aestivum L.)
2009/1/12
The greenbug, Schizaphis graminum (Rondani), and bird cherry-oat aphid, Rhopalosiphum padi L., are aphid pests of wheat (Triticum aestivum L.), barley (Hordeum vulgare L.), sorghum (Sorghum bicolor L....
Weed suppression by increasing spring rape crop density
Weed suppression spring rape crop density lighting
2010/1/14
Weed suppression by increasing spring rape crop density.