English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Pythium root rot, caused by  Pythium ultimum , is responsible for important losses in geranium plant production, mainly as a result of the decrease in the plant overall quality. An organic production system for geranium plants based on fertilization using a filtered suspension of dehydrated hen manure was compared with a conventional fertilization system to evaluate their tolerance to root disease. Under typical greenhouse conditions, geranium plants were inoculated with a suspension of  Pseudomonas putida ,  Trichoderma atroviride , a mixture of both or with  Trichoderma harzianum , and a commercially available product, Rootshield®, 1 and 4 weeks after planting. Four weeks after the first inoculation,  Pseudomonas putida  and  Trichoderma atroviride  stimulated plant growth (shoot and root dry weight) compared with the control regardless of the fertilization. The results also showed that the colonization of geranium roots by  Pythium  spp. was significantly lower for organically grown plants for all treatments compared with the inoculated control under conventional fertilization. Inoculation with  T. atroviride  under conventional fertilization was the only treatment that did not significantly reduce root colonization by  Pythium  spp. compared with the conventional control. For both organically and conventionally grown plants, the coinoculation with both  P. putida  and  T. atroviride  resulted in the weakest colonization of roots by the pathogen. The inoculation of  P. putida ,  T. atroviride , and the mixture of the bacterium and the fungus also significantly increased the fresh and dry weight of roots regardless of the fertilization used. All microorganism treatments in conventionally grown plants significantly increased the fresh and dry weight of the shoot compared with the control.

Pythium Root Rot and Growth Responses of Organically Grown Geranium Plants to Beneficial Microorganisms