scholarly journals Micromycetes on Pisum sativum var. arvense

2014 ◽  
Vol 32 (1) ◽  
pp. 31-39
Author(s):  
Joanna Marcinkowska
Keyword(s):  
Pisum Sativum ◽  
Botrytis Cinerea ◽  
Sclerotinia Sclerotiorum ◽  
Alternaria Alternata ◽  
Agar Medium ◽  
Mycosphaerella Pinodes ◽  
Stemphylium Botryosum ◽  
Number Of Species ◽  
Fusarium Poae ◽  
The Common

Seeds of 11 Austrian winter pea genotypes, harvested at Radzików (CEP) in 1993 and 1994, were evaluated for fungi occurrence on Coon's agar medium in Petri plates. Number of species isolated depended on the genotype and year of collection. <i>Alternaria alternata, Stemphylium botryosum</i> were found on all the tested samples and <i>Phoma pinodella</i> and <i>Fusarium poae</i> were also common while <i>Botrytis cinerea, Sclerotinia sclerotiorum</i> and <i>Mycosphaerella pinodes</i> appeared to be common only in 1993. Three species occurred only once. The mycoflora was richer in 1993. The common seed inhabitants usually transmitted higher percentage of fungi than species occuring more seldom.

scholarly journals Fungi occurrence on seeds of field pea

2013 ◽  
Vol 43 (1) ◽  
pp. 77-89 ◽  
Author(s):  
Joanna Marcinkowska
Keyword(s):  
Pisum Sativum ◽  
Environmental Conditions ◽  
Alternaria Alternata ◽  
Agar Medium ◽  
Field Pea ◽  
Mycosphaerella Pinodes ◽  
General Level ◽  
Stemphylium Botryosum ◽  
Fusarium Poae ◽  
Ascochyta Pisi

Seeds of four edible cultivars of <em>Pisum sativum</em> and three fodder harvested in 2004-2006 from eight localities, scattered in all region suitable for pea production in Poland, were evaluated for fungi occurrence on CN agar medium in Petri plates. The highest number (27) of species was isolated in 2004, while the lowest (16) in 2006. Number of fungi inhabiting seeds was influenced mainly by environmental conditions of locality and years. <em>Alternaria alternata</em> dominated in each sample of 450 seeds. Species of <em>Penicillium</em> contaminated seeds as the next and infection by <em>Stemphylium botryosum</em> was at similar level. <em>Fusarium poae</em> was the most often occurring species of this genera. Pea specific pathogens: <em>Mycosphaerella pinodes, Phoma pinodella</em> and <em>Ascochyta pisi</em> infected more seeds in 2004 and 2005 than 2006, and at the last season only <em>A. pisi</em> was noted. In general, level of infection by those pathogens was low, reaching on an average only 2.56%, with the highest for A. pisi, and the lowest for <em>M. pinodes</em>.

scholarly journals Yariability of dry seed mycobiota of Pisum sativum

2014 ◽  
Vol 33 (1) ◽  
pp. 91-99 ◽  
Author(s):  
Joanna Marcinkowska
Keyword(s):  
Pisum Sativum ◽  
Pathogenic Fungi ◽  
Mycosphaerella Pinodes ◽  
Stemphylium Botryosum ◽  
Cladosporium Herbarum ◽  
Fusarium Poae ◽  
Ascochyta Pisi ◽  
Pea Seeds

Mycobiota of dry pea seeds of cv. Ramir and line R 429/87 harvested at Radzików, Oleśnica Mała and Łagiewniki in 1991—93 was investigated. Among twenty species <i>Alternaria aliernata</i> and <i>Stemphylium botryosum</i> occurred commonly each year. <i>Mycosphaerella pinodes, Ascochyta pisi, Fusarium poae</i> and <i>Cladosporium herbarum</i> were noted on most of the tested seed samples. Percentage of sccee transmitting the fungi varied depending on locations, time and genotypes, being the lowest for Łagiewniki and in 1992. The year 1991 was the most favourable for seed mycobiota development, especially for pathogenic fungi.

scholarly journals Patogenic fungi associated with blue lupine seeds

2013 ◽  
Vol 48 (2) ◽  
pp. 59-64 ◽  
Author(s):  
Bogdan Nowicki
Keyword(s):  
Botrytis Cinerea ◽  
Sclerotinia Sclerotiorum ◽  
Fusarium Avenaceum ◽  
Pathogenic Species ◽  
Highly Pathogenic ◽  
Stemphylium Botryosum ◽  
Phomopsis Leptostromiformis ◽  
Fusarium Semitectum

Over 10% ofseeds harvested in 1991 and 1992 (50 samples, 400 seeds in each sample) proved to be infested with various fungi. <em>Fusarium</em> spp. and <em>Botrytis cinerea</em> were the most common pathogens isolated. <em>Fusarium avenaceum</em> was the most common and highIy pathogenic species. <em>Fusarium semitectum</em> and <em>F. tricinctum</em> were highly pathogenic to lupin seedlings but they were the least common <em>Fusarium</em> isolated from seeds. Similarily, <em>Sclerotinia sclerotiorum</em> was isolated only from 0,2% seeds tested but this fungus was highly pathogenic to lupin seedlings. Some other fungi know as lupin pathogens (<em>F. oxysporum, Stemphylium botryosum, Pleiochaeta setosa</em> and <em>Phomopsis leptostromiformis</em>) were also noted in tested seeds.

scholarly journals Occurrence of pathotypes of Ascochyta pisi (Lib.) in the Olsztyn district

2013 ◽  
Vol 44 (1-2) ◽  
pp. 5-22
Author(s):  
Helena Furgał-Węgrzycka
Keyword(s):  
Botrytis Cinerea ◽  
Alternaria Alternata ◽  
Stemphylium Botryosum ◽  
Field Peas ◽  
Microscopic Features ◽  
Sordaria Fimicola ◽  
Ascochyta Pisi

The causal agents of leaf and pods spot-pot of peas and field peas in the Olsztyn district was the fungus <i>Ascochyta pisi</i> (Lib.). Investigated isolates of <i>A. pisi</i> differed by macroscopic and microscopic features. From diseases leaves and pods of peas and field peas obtained also saprophitic fungi among which <i>Alternaria alternata, Botrytis cinerea, Cladosporium c1adosporioides, Epicoccum purpurascens, Stemphylium botryosum, Sordaria fimicola</i> and <i>mycelia starilia</i> were dominated. In the study of the identification and distribution of pathotypes of <i>A. pisi</i> five pathotypes were identified among which pathotype 2 were dominated. The identified the pathotypes differed by macroscopic and microscopic features.

scholarly journals Mycoflora of Calendula officinalis L. seeds

2013 ◽  
Vol 44 (1-2) ◽  
pp. 49-53
Author(s):  
Danuta Pięta
Keyword(s):  
Botrytis Cinerea ◽  
Alternaria Alternata ◽  
Agar Medium ◽  
Fusarium Culmorum ◽  
Fusarium Avenaceum ◽  
Calendula Officinalis ◽  
Calendula Officinalis L

The seeds of <i>Calendula offlcinalis</i> harvested in the years 1985-1987 were investigated. Agar medium with nitrients was used to isolate the fungi. As a result of the mycological analysis, 3642 isolates belonglng to 23 species and dark unsporulating mycelium were obtained. <i>Alternaria alternata</i> dominated among the isolated fungi. Moreover, <i>Botrytis cinerea, Fusarium culmorum, Fusarium avenaceum</i> and <i>Sclerotinia sc1erotiorum</i> were obtained from the seeds.

scholarly journals Occurrence of pathotypes of Phoma medicaginis var. pinodella (Jones) Boerema in the Olsztyn district

2013 ◽  
Vol 44 (1-2) ◽  
pp. 23-42 ◽  
Author(s):  
Helena Furgał-Węgrzycka
Keyword(s):  
Botrytis Cinerea ◽  
Alternaria Alternata ◽  
Cladosporium Cladosporioides ◽  
Saprophytic Fungi ◽  
Stemphylium Botryosum ◽  
Field Peas ◽  
Phoma Medicaginis ◽  
Microscopic Features ◽  
Sordaria Fimicola ◽  
Mycelia Sterilia

The causal agents of leaves and pods spot-pot of peas and field peas in the Olsztyn district was the fungus <i>Phoma medicaginis</i> var. <i>pinodella</i>. Investigated isolates of <i>P. medicaginis</i> var. <i>pinodella</i> differed by macroscopic and microscopic features. From diseases leaves and pods of peas and field peas obtained also saprophytic fungi among which <i>Alternaria alternata, Botrytis cinerea, Cladosporium cladosporioides, Epicoccum purpurascens, Stemphylium botryosum, Sordaria fimicola</i> and <i>mycelia sterilia</i> were dominated. In the study on the identification and distribution of pathotypes of <i>P. medicaginis</i> var. <i>pinodella</i> six pathotypes were identified among which pathotype 3 were dominated. The identified pathotypes differed by macroscopic and microscopic features.

scholarly journals Etiology of root parsley damping-off

2013 ◽  
Vol 50 (1-2) ◽  
pp. 35-40 ◽  
Author(s):  
Bogdan Nowicki
Keyword(s):  
Rhizoctonia Solani ◽  
Botrytis Cinerea ◽  
Sclerotinia Sclerotiorum ◽  
The Other ◽  
Damping Off ◽  
Stemphylium Botryosum ◽  
Low Intensity

The investigations were done between 1990-1994. Seedlings collected from 120 plantations were evaluated. The fungi responsible for seedling damping-off occurrening most often were <em>Alternariu</em> spp., <em>Fusarium</em> spp. and <em>Pythium</em> spp. isolated from 46,3, 32,2 and 16,6% of infected plants, respectively. The most important pathogens were <em>A.petroselini</em> which infected 33% of seedlings and <em>A.radicina</em> - 11%„ Among <em>Fusarium</em> species the most common was <em>F.avenaceum</em>, comprising 61% of total Fusarium isolates. The next were following: <em>F.culmorum</em> - 21%, <em>F.solani</em> - 12,6% and 3% for both <em>F.equiseti</em> and <em>F.oxysporum</em>. Damping-off of se,edlings was also caused by the other fungi but they were noted in low intensity. Among them were following: <em>Phoma</em> spp., <em>A.alternata</em> and <em>Rhizoctonia solani</em> on 2,8; 2,3 and 1,2% of tested seedlings. respectively. The species: <em>Sclerotinia sclerotiorum, Botrytis cinerea, Bipolaris sorokinianu</em> and <em>Septoria petroselini</em> were isolated in total from 0,9% of seedlings. <em>Drechslera biseptata</em> and <em>Stemphylium botryosum</em> caused seedling damping-off sporadically.

Persistence of modern varieties and hybrids of carrots and its dependence on the biochemical composition

2020 ◽  
pp. 16-19
Author(s):  
Е.В. Янченко
Keyword(s):  
Botrytis Cinerea ◽  
Sclerotinia Sclerotiorum ◽  
Dry Matter ◽  
Inverse Correlation ◽  
Dry Weight ◽  
Matter Content ◽  
White Rot ◽  
Dry Matter Content ◽  
Important Indicator ◽  
Modern Varieties

Цель исследований – дать оценку сохраняемости и болезнеустойчивости современных сортов и гибридов моркови столовой и определить корреляционные зависимости влияния биохимических показателей качества на сохраняемость и степень поражения моркови столовой различными видами болезней в процессе хранения. Исследования проводились в 2011–2016 годах во ВНИИО – филиале ФГБНУ ФНЦО по общепринятым методикам. В биохимической лаборатории отдела земледелия и агрохимии содержание сухого вещества определяли высушиванием до абсолютно сухого веса, общего сахара – по Бертрану, аскорбиновой кислоты – по Мурри, нитраты – ионоселективным методом. При характеристике моркови столовой важнейший показатель, определяющий его качество – количество сухого вещества и сахаров. В процессе хранения были выявлены следующие болезни моркови: серая гниль (Botrytis cinerea Pers. ex Fr.), белая гниль (Sclerotinia sclerotiorum (Lib.)), белая парша (Rhizoctonia carotae Rad.), альтернариоз (Alternaria radicina M., Dr. et E.). В большей степени сортообразцы моркови столовой поражались серой гнилью. Лучшими по сохраняемости сортообразцами были Корсар (94,6%), F1Берлин (94,5%), Берликум Роял (94,1%) и F1 Звезда (94%). Сохраняемость у зарубежных сортов и гибридов моркови столовой была немного выше, чем у отечественных (на 0,4%) как за счет меньшей величины убыли массы (6,3% против 6,4%), так и потерь от болезней (1,6% против 1,9%). Сохраняемость корнеплодов моркови находится в прямой корреляционной зависимости от содержания сухого вещества (r=+0,41), каротиноидов (r=+0,39), моносахаров (r­=+0,30) и суммы сахаров (r=+0,27). Проявление серой гнили находится в обратной корреляционной связи с содержанием сухого вещества и каротиноидов (r=-0,37 и r=-0,35 соответственно), белой парши – в прямой корреляции с содержанием сухого вещества , моносахаров и дисахаров (r= +0,21; r= +0,39; r= -0,41 соответственно), белой гнили в обратной корреляционной связи с содержанием сухого вещества, моносахаров и дисахаров. The purpose of the research is to assess the persistence and disease resistance of modern varieties and hybrids of carrots and to determine the correlation between the influence of biochemical quality indicators on the persistence and degree of damage to carrots by various types of diseases during storage. The research was conducted in 2011–2016 at ARRIVG – branch of FSBSI FSVC, according to generally accepted methods. In the biochemical laboratory of the Department of Agriculture and Agrochemistry, the dry matter content was determined by drying to absolutely dry weight, total sugar – by Bertran, ascorbic acid – by Murri, nitrates – by the ion-selective method. When describing carrots, the most important indicator that determines its quality is the amount of dry matter and sugars. During storage, the following diseases of carrots were detected: gray rot (Botrytis cinerea Pers. ex Fr.), white rot (Sclerotinia sclerotiorum (Lib.), white scab (Rhizoctonia carotae Rad.), alternariasis (Alternaria radicina M., Dr. et E.). To a greater extent, varieties of table carrots were affected by gray rot. The best preserved varieties were Corsar (94.6%), F1 Berlin (94.5%), Berlicum Royal (94.1%) and F1 Zvezda (94%). The persistence of foreign varieties and hybrids of table carrots was slightly higher than that of domestic ones by 0.4%. both due to a smaller amount of weight loss (6.3% vs. 6.4%) and losses from diseases (1.6% vs. 1.9%). The persistence of carrot root crops is directly correlated with the content of dry matter (r=+0.41), carotenoids (r=+0.39), monosaccharides (r=+0.30) and the amount of sugars (r=+0.27). The manifestation of gray rot is in inverse correlation with the content of dry matter and carotenoids (r=-0.37 and r=-0.35, respectively), white scab is in direct correlation with the content of dry matter (r= +0.21; r= +0.39; r= –0.41, respectively), white rot is in inverse correlation with the content of dry matter, monosaccharides and disaccharides.

Effect of organic solvent on fungicide toxicity to Sclerotinia sclerotiorum and Botrytis cinerea

2016 ◽  
Vol 146 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Hong-Jie Liang ◽  
Xiao-Ming Lu ◽  
Zu-Qing Zhu ◽  
Fu-Xing Zhu
Keyword(s):  
Organic Solvent ◽  
Botrytis Cinerea ◽  
Sclerotinia Sclerotiorum
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