709 research outputs found
Screening strawberry plant resistance to Phytophthora cactorum with two techniques
P. cactorum infects runner plants in the NFT system fairly quickly, the first symptoms becoming visible in three to five days in susceptible cultivars. Most of the tested cultivars showed the same level of resistance in both tests
The effect of irrigation method on the quality and shelf-life of strawberry fruit in organic production
The irrigation method did not affect either the shelf-life or the quality of fruit. In organic strawberry production grey mould is a major problem. Strawberry varieties differ from each other in disease susceptibility and the quality and shelf-life of the fruit is affected more by their properties and weather conditions than by the irrigation method
'Suvetar' and 'Valotar' - new strawberry cultivars
The strawberry (Fragaria Ă ananassa) cultivars âSuvetarâ and âValotarâ have been released from the breeding programme of MTT Agrifood Research Finland. Both new cultivars overwintered as well as the control cultivars âJonsokâ and âPolkaâ. âSuvetarâ overwintered even better than âPolkaâ. âSuvetarâ was produced from the cross âPolkaâ Ă âEmilyâ. It scored better than the control cultivars for sensory assessed skin resistance. Measured fruit firmness of âSuvetarâ was not significantly different from that of âPolkaâ, but was better than âJonsokâ. âValotarâ originates from a cross between âJewelâ and âSenga Senganaâ. Its measured fruit firmness was better than that of âJonsokâ and âPolkaâ. Considering sensory assessments, the good firmness seems to be largely due to good skin resistance. The fresh flavour, yield, fruit size and fruit appearance of âSuvetarâ and âValotarâ, together with improved fruit firmness, make both the new varieties suitable for the fresh fruit market
Taudit kulkevat taimien mukana mansikkaan
Maahamme on tuontitaimien mukana pyrkimÀssÀ mansikan vaarallinen tauti, mustalaikku. Melko yleisenÀ taimissa kulkee myös kasveja kuihduttavaa mansikan tyvimÀtÀÀ. Sen seurauksena nahkamÀtÀ voi lisÀÀntyÀ mansikkaviljelmillÀ ja aiheuttaa laatuongelmia. Taudit voivatkin olla riski kannattavuusongelmista kÀrsivÀlle mansikantuotannolle.vo
Taudit kulkeutuvat taimien mukana mansikkaan
Suuri osa suomalaisista mansikkaviljelmistÀ perustetaan nykyÀÀn ulkomaisilla ostotaimilla. Taimien mukana maasta toiseen kulkeutuu myös kasvintuhoojia, kuten mansikan mustalaikku ja tyvimÀtÀ. Kiusallisilta taudeilta voidaan vÀlttyÀ kÀyttÀmÀllÀ tervettÀ ja testattua taimimateriaalia.vo
Porkkanan varastotaudit ajoissa selville
Porkkanan varastotautien runsautta ja niiden aiheuttamia satotappiota voidaan ennakoida noston jÀlkeen varastotestillÀ. Jos testi osoittaa tÀrkeimmÀn pilaajan, mustamÀdÀn, vioittavan juureksia, sato kannattaa markkinoida aikaisin. MustamÀdÀn testaus onnistuu porkkananpaloilla myös suoraan viljelymaasta.vo
The effect of different mulches on yield, fruit quality and strawberry mite in organically grown strawberry
An organic strawberry field experiment was started in 2000 at MTT Ecological Production in Mikkeli to study the influence of mulching materials on the growth, yield, microbiological fruit quality and strawberry mite. Mulching materials are black plastic, flax fibre mat, green mass, barley straw, buckwheat husk as well as pine and birch woodchips
Colletotrichum acutatum: survival in plant debris and infection on alternate hosts
The survival of Colletotrichum acutatum in infected plant material was studied in two trials: one in 2002-2003 and another in 2003-2005 with artificially infected strawberry leaves, crowns and berries
BekÀmpning av bladsjukdomar inom ekologisk vinbÀrsodling Àr en utmaning
PÄ försöksstationen i S:t Michel inom MTT undersöktes bekÀmpningen av bladsjukdomar i ekologiska vinbÀrsodlingar under Ären 1999-2001 pÄ vita vinbÀr och Är 2001 ocksÄ pÄ röda vinbÀr. Man fann ingen effekt av nÀsselvatten mot bladsjukdomar pÄ vinbÀr. Kompostvatten tycktes ha en viss förebyggande effekt
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