Components of quantitative resistance in barley plants to Fusarium head blight infection determined using three in vitro assays
Journal Title: Journal of Plant Protection Research - Year 2018, Vol 58, Issue 2
Abstract
Quantitative resistance in barley to four Fusarium head blight (FHB) species was investigated in vitro. Nine components involved in three assays (detached leaf, modified Petri dish and seedling tests) were compared on two widely grown Syrian barley cultivars: Arabi Aswad (AS) and Arabi Abiad (AB). On AB, inoculation with FHB species resulted in a significantly shorter latent period and larger lesion length of detached leaf inoculation, more standardized area under disease progress curve (AUDPCstandard) of modified Petri dish inoculation and a higher percentage of infected seedlings of pin-point inoculation than on AS. The latent period of AB was 14.89% less than AS, lesion length of AS was 6.01% less than AB, AUDPC standard of AS was 17.07% less than AB and the percentage of infected seedlings of AS was 4.87% less than AB. Inoculation with FHB species resulted in no significant differences in the other five components measured: incubation period of detached leaf inoculation, germination rate reduction and coleoptile length reduction of modified Petri dish inoculation, percentage of infected seedlings of foliar-spraying inoculation and lesion length of clip-dipping inoculation. AS was more resistant to in vitro FHB infection than AB. The latent period and AUDPCstandard recorded the highest values compared with the lowest values for lesion length and percentage of infected seedlings. It seems that measurement of the latent period and AUDPCstandard may be useful in identifying barley cultivars which are highly susceptible or resistant to FHB at early stages.
Authors and Affiliations
Nachaat Sakr
Keywords
Related Articles
- EP ID EP541806
- DOI 10.24425/122933
- Views 62
- Downloads 0
In vitro evaluation of potato genotypes for resistance against bacterial soft rot (Pectobacterium carotovorum) – a new tool for studying disease resistance
In vitro screening techniques were used to evaluate 46 genotypes of Iranian potato collection for resistance to bacterial soft rot caused by Pectobacterium carotovorum subsp. carotovorum (Pcc). One month old in vitro roo...
Symbiotic association between golden berry (Physalis peruviana) and arbuscular mycorrhizal fungi in heavy metal-contaminated soil
Physalis peruviana is one of the most promising tropical fruit plants because of its rapid growth, high yield, and nutritional quality. This study was designed to investigate plant development under heavy metal contamina...
Glyphosate in agronomic performance and seed quality of soybean with cp4-EPSPs and cry1Ac genes
The “second generation” of glyphosate-tolerant soybean (GT2 soybean) was developed through a different technique of insertion of the glyphosate-insensitive EPSPs gene, in comparison with “first generation” of glyphosate-...
Efficacy of glyphosate and fluazifop-P-butyl herbicides with adjuvants at different levels of cutting for the common reed (Phragmites australis)
Field experiments were conducted to evaluate the efficacy of glyphosate (H1) and fluazifop-P-butyl (H2) herbicides with adjuvants on the common reed without cutting and at two different cutting levels (10 and 30 cm). The...
Effects of Artemisia annua methanolic extract on the enzymatic components of intermediary metabolism and the antioxidant system of Pseudococcus viburni Signoret
Toxicity and physiological alterations were determined in Pseudococcus viburni nymphs treated with Artemisia annua methanolic extract. The leaf dipping bioassay showed LC50 values of 0.287% and 0.194% 24 and 48 hours pos...