Oat is a crop with an important European history and tradition. The high value of oat in human nutrition, which is unique among cereals, is widely recognized and confirmed by health claims issued in various countries. It is based on a high content and quality of proteins, considerable content of fat with high proportion of polyunsaturated fatty acids, high contents of dietary fiber, especially the soluble, highly viscous mixed linked (1->3)(1->4)-ß-D-glucans, which hypocholesterolemic effects, minerals and antioxidants, especially tocopherols, tocotrienols and avenanthramides. The main goal of this paper is on characterization and evaluation of accessions from European ex situ collections for different traits, which are important for the quality of oats in human nutrition. All field experiments carried out in experimental field of Suceava Genebank, during 2014-2016. Field screening of genetic material was performed by using several IPGRI descriptors: days to heading; growth habit; lodging at immature and mature stages; shape of panicle; lemma color; length of panicle; panicle numbers/m2; plant height; productivity; (g/m2); seed weight (g) and test weight (kg/hl). A wide variability was observed for all used descriptors, and some genotypes potentially interesting for breeding programs were identified (landraces and obsolete cultivars).
ABSTRACT. During 2000During -2016 entries from 29 plant species from different crop groups (cereals, legumes, industrial crops, perennial grasses, vegetables, cucurbits, aromatic and medicinal plants) from core collection of the Suceava Genebank were evaluated from phytosanitary status point of view, before the storing. The seeds testing to the micromycetes incidence in the laboratory by incubating of them on blotting paper substrate and agar medium was performed. Fungal saprophytes from genus as: Alternaria spp., Stemphylium spp., Cladosporium sp., Rhyzopus sp., Epicocum sp., Aspergillus sp., Penicillium sp., Botrytis sp. occurred frequently in seeds samples of the tested crops. Also, 12 fungal parasite were isolated: Sclerospora sp., Diplodia sp., Nigrospora sp. on maize; Drechslera spp. on wheat, barley, rye and flax; Septoria sp. on barley; Fusarium spp. on maize, barley, rye, millet, bean, pea, flax, hemp, peppers, cucumbers; Colletotrichum spp. on maize, bean and faba bean; Sclerotinia sp., Isariopsis sp. and Rhyzoctonia sp. on bean; Verticillium sp. on peppers and okra, Ascochyta sp. on pea. The obtained results were expressed as percentage of the number of fungal isolated from tested samples species, highlighting the existing microflora and need to seed health testing with major importance in maintaing of high quality germplasm avoiding the pathogens preservation and dissemination.
The aim of this study was to evaluate the effect of temperate climate plant species and two different types of fertilizer on the yield components related to summer maize crop productivity in an area with a history of 5 years of soybean/black oat succession cropping in a no-tillage system in ArenitoCaiua, Northwestern Paraná State, Brazil. The experiment was conducted in split blocks, with 6 blocks and 16 treatments (8 winter crops and 2 types of fertilizer). The maize hybrid used was DKB 390PRO. The following yield components were evaluated: plant height and height of first-ear insertion; final plant population; ear length and diameter; number of rows per ear, number of grains per row and number of grains per ear; weight of 100 grains and yield. It can be concluded that all succession systems are agronomically viable for maize production in the ArenitoCaiua region, in conjunction with adequate crop nutrition management, especially the winter common vetch/summer maize succession system fertilized with poultry litter which produced the best maize yield.
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