搜索结果: 1-7 共查到“园艺学 Population 7”相关记录7条 . 查询时间(0.093 秒)
Effect of two-spotted spider mite population (Tetranychus urticae Koch) on growth parameters and yield of the summer apple cv. Katja
economic injury level action threshold
2015/12/30
The effect of two-spotted spider mite populations (Tetranychus urticae Koch) on the yield and growth parameters of the early-season apple cv. Katja was evaluated during a 3-year study. In the case of ...
Diminished UV radiation reduces the spread and population density of Macrosiphum euphorbiae (Thomas) [Hemiptera: Aphididae] in lettuce crops
potato aphid UV-absorbing net IPM SADIE life table parameters
2015/3/17
UV-absorbing covers reduce the incidence of injurious insect pests and viruses in protected crops. In the present study, the effect of a UV-absorbing net (Bionet) on the spatio-temporal dynamics of th...
The development of population structure of Cryphonectria parasitica on European chestnut (Castanea sativa Mill.) in the Experimental Castanetarium Horn?Lefantovce, observed over a 12-year study period
chestnut blight Castanea sativa vegetative compatibility types
2015/1/28
We studied occurrence of chestnut blight disease in the Experimental Castanetarium Horn?Lefantovce, SW Slovakia. The study ran in years 2006?007 on a set consisting of 889 chestnut trees growing in th...
Importance of population size for offspring fitness at conservation of the gene pool of cultivars
inbreeding depression cross-pollinated cultivars
2015/3/19
Effective population size for conservation of cultivated plants was studied in Coreopsis grandiflora on populations in
variants of 1, 5, 10, 30, 50 and 100 individuals. In five consecutive years the...
Population Dynamics of Tomato Russet Mite,Aculops lycopersici (Massee) and Its Natural Enemy, Homeopronematus anconai
population growth injury developmental zero thermal constant biological control
2009/9/9
Developmental rates of Aculops lycopersici increased linearly as rearing temperature increased. A total of 81.2 degree-days above a developmental zero of 10.5°C were required to complete development f...
Preliminary Results on Genome Mapping of an Italia x Mercan Grapevine Population
Grape genetic map linkage analysis QTL RAPD
2009/1/12
This research was conducted to construct genetic linkage maps of Vitis (2n = 38) from grape populations (60 F1 + 2 parents) of crossing of Italia and Mercan (Vitis vinifera L.) cultivars. RAPD reactio...
Population Parameters of Tetranychus cinnabarinus Boisduval（Prostigmata：Tetranychidae）on Eight Strawberry Cultivars
Tetranychus cinnabarinus strawberry life tables
2009/1/9
Development times, reproductive rates, and population growth parameters of Tetranychus cinnabarinus Boisd. on 8 strawberry (Fragaria x ananassa Duchesne) varieties were evaluated under laboratory con...