Search results for "Mildew"
showing 7 items of 37 documents
Sesquiterpenes VOCs are markers of elicitation by sulfated laminarine in grapevine
2016
International audience
Image analysis methods for assessment of H2O2 production and Plasmopara viticola development in grapevine leaves: application to the evaluation of re…
2014
Sesquiterpene volatile organic compounds (VOCs) are markers of elicitation by sulfated laminarine in grapevine
2015
SPE IPM UB CT1; International audience; Inducing resistance in plants by the application of elicitors of defense reactions is an attractive plant protection strategy, particularly for grapevine (Vitis vinifera), which is susceptible to severe fungal diseases. Although induced resistance (IR) can be successful under controlled conditions, in most cases, IR is not sufficiently effective for practical disease control under outdoor conditions. Progress in the application of IR requires a better understanding of grapevine defense mechanisms and the ability to monitor defense markers to identify factors, such as physiological and environmental factors, that can impact IR in the vineyard. Volatile…
Powdery mildew resistance genes in Latvian barley varieties
2004
Thirty-three Latvian spring barley varieties and breeding lines and 90individual progenies from these were tested at the seedling stage for their reaction to a maximum 37 isolates of Blumeria graminis f. sp. hordei. Eighteen varieties were composed of two or three lines with different resistance. TwelveMl powdery mildew resistance genes(a1, a6, a7, a8, a9, a12, a13, at, g, k1, (Kr) and La) and four Ml genes closely linked to the Mla locus [a(Al2), a(No3), a(Em2) and a(Ru3)] were found. Mla8, Mlg and Mlk1 were the most frequent genes that occurred among the tested genotypes. The results confirm the pedigrees of all genotypes apart from cv. Agra and the breeding line L-215.
Investigation of the resistance of different varieties of buckwheat to infectious diseases after the pre-sowing treatment of seeds and vegetating pla…
2016
In the work it was investigated the influence of sodium humate, biological products "Vermisol", "Vitasym" and "Bioeco-funge-1" on buckwheat lesion of Botrytis bunch rot, Downy mildew, Ascochyta blight, bacteriosis, burn virus and a complex of diseases after pre-sowing treatment of seeds and vegetating plants of Victoria, Roxolana, Kara-Dag, Rubra, Zelenokvitkova-90,Stepova, Elena, Aelita, Lada and Fagopyrum tataricum Gaertn buckwheat varieties. The prospects of these biological products use under agrocenosis conditions to protect the crops of buckwheat from the complex of diseases were shown. The highest effi- ciency identified for the drug "Bioecofunge-1" which , in addition to protecting …