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Effects of sowing time on pink snow mould, leaf rust and winter damage in winter rye varieties in Finland

Serenius, Marjo; Huusela-Veistola, Erja; Avikainen, Hanna; Pahkala, Katri and Laine, Antti (2005) Effects of sowing time on pink snow mould, leaf rust and winter damage in winter rye varieties in Finland. Agricultural and Food Science, 14 (4), pp. 362-376.

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Summary

Disease infection in relation to sowing time of winter rye (Secale cereale) was studied in southern Finland in order to compare overwintering capacity of modern rye varieties and to give recommendations for rye cultivation. This was done by using three sowing times and four rye varieties in field trials conducted at three locations in 1999–2001. The early sown rye (beginning of August) was severely affected by diseases caused by Puccinia recondita and Microdochium nivale, whereas postponing sowing for two weeks after the recommended sowing time resulted in considerably less infection. The infection levels of diseases differed among rye varieties. Finnish rye varieties Anna and Bor 7068 were more resistant to snow mould and more winter hardy than the Polish variety Amilo, or the German hybrid varieties Picasso and Esprit. However, Amilo was the most resistant to leaf rust. In the first year snow mould appeared to be the primary cause of winter damage, but in the second year the winter damage was positively correlated with leaf rust. No significant correlation between frit fly infestation and winter damage or disease incidence of snow mould or leaf rust was established. The late sowing of rye (in the beginning of September) is recommended in Finland, particularly with hybrid varieties, to minimize the need for chemical plant protection in autumn.


EPrint Type:Journal paper
Keywords:snow mould, Microdochium nivale, Puccinia recondita, overwintering, winter rye, Secale cereale, frit fly, winter hardening
Subjects: Crop husbandry > Crop health, quality, protection
Research affiliation: Finland > MTT Agrifood Research
ISSN:1795-1895
Related Links:http://www.mtt.fi/english
Deposited By: Koistinen, Riitta
ID Code:16824
Deposited On:09 Mar 2010 11:37
Last Modified:12 Apr 2010 07:43
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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