Effect of phytophagous organisms on the seed yield and germination power of cow parsnip (Heracleum sosnowskyi Manden)
1990
Jurek, M. (Instytut Hodowli i Aklimatyzacji Roslin, Krakow (Poland). Zaklad Roslin Pastewnych)
The occurrence frequency of turnished plant bugs, parsnip webworm and the intensity of powdery mildew were higher in the years of lower rainfall sums and higher temperatures in May-July. The damages caused by aphids and turnished plant bugs can be considerably limited by applying an insecticide after forming fruits
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书目信息
页码
pp. 117-124
其它主题
Densidad de la poblacion; Perdidas de la cosecha; Perte de recolte; Faculte germinative; Cultivo de semillas; Produccion de semillas; Insecte depredateur des fleurs; Polonia/ plantas forrajeras; Pologne/ plante fourragere; Densite de population
语言
抛光
注释
7 tables; 11 ref. Summaries (En, Ru)
类型
Conference; Summary
粮农组织大会
Symposium: biological progress and effectiveness of agriculture plant production, Radzikow (Poland), 10-12 Jan 1989
1991-08-15
AGRIS AP