Avancerad sökning

Hittade 2 uppsatser som matchar ovanstående sökkriterier.

1. 1. Flower attractiveness and nectar accessibility for Delia radicum (Diptera:Anthomyiidae) with implications for the control by Trybliographa rapae (Hymenoptera:Figitidae)

   L3-uppsats, SLU/Dept. of Plant Protection Biology

   Författare :Linda-Marie Rännbäck; [2008]
   Nyckelord :conservation biological control; flower attractiveness; nectar accessibility; Delia radicum; Trybliographa rapae; Hymenoptera; parasitoid wasps; flower strips; selective biodiversity; floral food sources; Lobularia maritima; Anethum graveolens; Fagopyrum esculentum; olfactometer; volatile collection; GC-MS;

   Sammanfattning : Conservation biological control aims at preserving populations of natural enemies in and around crop fields. Resources of floral nectar are important to natural enemies to increase the longevity, fecundity and motivation to seek host insects. LÄS MER

3. 2. Propagation, cultivation and breeding of terrestrial temperate orchids, with focus on Cypripedium spp.

   L3-uppsats, SLU/Dept. of Crop Science

   Författare :Linda-Marie Rännbäck; [2007]
   Nyckelord :horticulture; temperate terrestrial orchids; mycorrhiza; media composition; germination; in vitro seed culture; Cypripedium; botany; hybridization; breeding; cultivars; propagation; soil culture; cultivation; soil substrates;

   Sammanfattning : Temperate terrestrial orchids have received increased horticultural attention as the new exclusive perennials for the garden. Temperate terrestrial orchid seeds have been found to germinate and develop readily asymbiotically on suitable media in vitro. LÄS MER