Journal
ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE
Volume 72, Issue 1, Pages 923-930Publisher
TAYLOR & FRANCIS AS
DOI: 10.1080/09064710.2022.2125434
Keywords
Ascochyta blight; Didymella pisi; foot rots; stress tolerance
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Funding
- European Regional Development Fund
- Research Council of Lithuania (LMT LT) through the highlevel R&D project `Enhancement of the multifunctional properties of legumes in feed and food value chains' (SmartLegume) [01.2.2-LMT-K-718-01-0068]
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As the area of legume cultivation increases, diseases pose one of the most significant risks to productivity. Research conducted on field peas from 2018 to 2020 revealed the importance of disease response and control measures in achieving higher yields. The study highlighted the need for a forecast system for Ascochyta blight and other diseases, as well as the development of drought-resistant cultivars.
With increasing the area of legumes one of the most possible risks for productivity limitation is diseases. The research on the response to diseases and productivity of field peas was carried out during 2018-2020. The six cultivars and breeding lines were grown at two different infection levels: at natural field infection and under disease control using seed treatment and foliar fungicides. The main disease in field peas during the research year was Ascochyta blight at different intensites depending on year, cultivar/breeding line and disease control efficacy. Dominating pathogenic fungus D. pisi on harvested grains prevailed. Pea grain yield was significantly affected by cultivar/breeding line, experiments year and growing conditions. The highest yield difference between growing conditions (natural field infection and under disease control) was recorded in 2020 when Ascochyta blight and Grey mould gave the most severe attack. This finding illustrates the importance to eliminate one of the most important limiting factors for productivity - severe diseases. Future research on the forecast system of Ascochyta blight and other field pea diseases infection risk is needed. The response of cultivar/breeding line to weather conditions was established in this research as well. Tested breeding lines showed higher drought stress tolerance compared with commercial cultivars. More focus on environment stress-resistant cultivars is needed.
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