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| Registros recuperados: 12 | |
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| Hannukkala, Asko; Wiik, Lars; Pedersen, Henrik. |
| In 2000s blight attacks one month earlier in Finland than in 1980s - observations in other Nordic countries similar. In trials rate of epidemic development has not changed, epidemics only start earlier - does not support general view of faster defoliation than before. In short rotations blight starts 10 days earlier than in good rotations - supported by data and observations in other Nordic countries. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2006 |
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| Yli-Mattila, Tapani; Kalko, Galina; Hannukkala, Asko; Paavanen-Huhtala, Sari; Hakala, Kaija. |
| We investigated the composition og fungal isolates in red clover roots and the susceptibility of red clover cultivars to Sclerotinia trifoliorum, which causes the important disease clover rot. In leaf experiments, the cultivars Jokioinen and Ilte were more susceptible to one of the S. trifoliorum isolates than Betty and Bjursele, while all of them were equally susceptible to two other S. trifoliorum isolates. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2008 |
URL: http://orgprints.org/14887/1/njf4.pdf |
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| Hannukkala, Asko; Lehtinen, Ari; Lindqvist, Bengt. |
| År 2003 startade ett forskningsprojekt, finansierat av Jord- och skogbruksministeriet, vars målsättning är att utveckla för ekologisk produktion lämpliga odlingstekniska metoder samt metoder som ökar odlingshygienen, för att kunna rå på potatisbladmögel och brunröta. Målsättningen är att sammanställa klara direktiv, för odling och åtgärder, med vars hjälp det, från år till år, är möjligt att producera ekologiskt odlad potatis av god kvalitet. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Weed management. |
| Ano: 2004 |
URL: http://orgprints.org/11149/1/hannukkala.doc |
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| Lehtinen, Ari; Hannukkala, Asko. |
| There have been numerous indications since the 1990s that oospore-derived primary infections play an increasing role in the epidemiology of potato late blight. The aim of this study was to verify that oosporederived epidemics actually occur in Finland. For this purpose, 20 suspected foci of oospore-derived potato late blight were scouted in 2000–2002. All of these were located in fi elds in which late blight had been observed in at least one of the four previous years. Primary symptoms in these foci occurred always on the lowest leaves near or touching the ground. Leafl ets typically showing numerous primary infections or lesions were in direct contact with the soil. In the former, oospores were observed after incubation. Soil samples from two experimental... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2004 |
URL: http://orgprints.org/16753/1/lehtinen.pdf |
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| Hakala, Kaija; Hannukkala, Asko; Huusela-Veistola, Erja; Jalli, Marja; Peltonen-Sainio, Pirjo. |
| A longer growing season and higher accumulated effective temperature sum (ETS) will improve crop production potential in Finland. The production potential of new or at present underutilised crops (e.g. maize (Zea mays L.), oilseed rape (Brassica napus L.), lucerne (Medicago sativa L.)) will improve and it will be possible to grow more productive varieties of the currently grown crops (spring wheat (Triticum aestivum L.), barley (Hordeum vulgare L.), oats (Avena sativa L.)). Also cultivation of autumn sown crops could increase if winters become milder and shorter, promoting overwintering success. Climatic conditions may on the other hand become restrictive in many ways. For example, early season droughts could intensify because of higher temperatures and... |
| Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection. |
| Ano: 2011 |
URL: http://orgprints.org/19438/1/HAKALA.pdf |
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| Nykänen, Arja; Hakala, Kaija; Halinen, Arja; Hannukkala, Asko; Keskitalo, Marjo; Kirkkari, Anna-Maija; Palojärvi, Ansa; Tolonen, Kaisa; Tontti, Tiina. |
| In a three-year Research program of organic food and farming in Finland there are six projects under theme plant production and soil science. The projects focus on potato and red clover cultivation, waste composts and meat-bone meal as organic fertilizer and on-farm soil quality testing. Preliminary results are now available. |
| Tipo: Other |
Palavras-chave: Crop husbandry. |
| Ano: 2005 |
URL: http://orgprints.org/5213/1/5213.doc |
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| Registros recuperados: 12 | |
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