Dependence of Various Oat Ecotypes’ Yield Capacity on Climatic Factors in the Middle Amur Region

Асеева, Т. А.; Melnichuk, I. B.

doi:10.3103/s1068367418010056

Cited by 3 publications

(3 citation statements)

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“…In addition, excessive rainfall coupled with high humidity and air temperature hinder plant development, as well as favoring the emergence of diseases, causing reduced yield and poor grain quality (Penning de Vries et al, 1989;Castro et al, 2012). Therefore, more nitrogen-adjusted technological propositions along with crop weather information is decisive in the pursuit of sustainable agriculture (Prando et al, 2013;Aseeva and Melnichuk, 2018). In Table 2, of the mean values and relative contribution by the effect of nitrogen on soy / oat system, the indicators of chemical grain quality showed effective change in the vast majority of variables, except for total protein and energy.…”

Section: Resultsmentioning

confidence: 99%

“…In the commercialization process, it is necessary that the oat grains are produced by cultivars of high productivity and meeting the demands of the industry, such as a high proportion of grains larger than 2mm and the highest value of caryopsis in relation to the husk, a condition directly linked to management technologies in the promotion of physical and chemical modifications linked to the quality of caryopsis (Marolli et al, 2017;Aseeva and Melnichuk, 2018). Among the management technologies, the highlight is nitrogen fertilization, an essential element in the development and elaboration of oat grains (Mantai, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Research Article Nitrogen levels in oat grains and its relation to productivity

Mantai¹,

Silva²,

Scremin³

et al. 2020

Genet. Mol. Res.

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Analysis of the relationship of oat grain chemical components with productivity can yield information that determines crop production strategies. The market values high protein grain, but production and other nutritional components may be affected in the effort to increase protein levels. The objective of this study was to determine how the dynamics of the components of oat grain chemical composition relate to productivity when adding nitrogen to the soil, in order to develop nutrient management strategies that can combine productivity with grain quality. The study was conducted from 2011 to 2016 in Augusto Pestana, Brazil, in a randomized block design with four replications in a 4x2 factorial design for nitrogen rates (0, 30, 60 and 120 kg.ha-1) and standard biotype oat cultivars used on a commercial scale (Barbarasul and Brisasul) in two succession systems soybean/oat and corn/oat, totaling 64 experimental units. The nitrogen doses were applied at the phenological stage of expanded fourth leaf using urea. The increase of nitrogen fertilization for topdressing promoted increase of the total protein of oat grains and reduction of the total fiber in both soybean/oat and corn/oat systems. Higher levels of grain protein due to nitrogen fertilization reduced grain production, regardless of the cropping system.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research Article Nitrogen levels in oat grains and its relation to productivity

Mantai¹,

Silva²,

Scremin³

et al. 2020

Genet. Mol. Res.

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show abstract

“…A favorable environment for the development of oats with high productivity and grain quality, requires an adequate distribution of rainfall during the cultivation cycle and in small quantities, with low temperatures from germination to the grain filling phase and high daytime temperatures during the maturation period (Souza et al, 2013;Marolli et al, 2017b). Therefore, up-to-date knowledge of meteorological information with management practices is essential for sustainable agriculture (Prando et al, 2013;Aseeva & Melnichuk, 2018).…”

Section: Resultsmentioning

confidence: 99%

Nitrogen management in the relationships between oat inflorescence components and productivity

Mantai

Silva

Binelo

et al. 2020

Rev. bras. eng. agríc. ambient.

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ABSTRACT Among oat inflorescence components there are different magnitudes of contribution to expression of grain and industrial productivity by nitrogen stimulation. Thus, it was proposed to size and interpret the contribution and dynamics of the relationships of oat inflorescence components with grain and industrial yield by N-fertilizer stimulation, partitioning correlation values into direct and indirect effects by path diagnosis, strengthened by the joint analysis of different agricultural years. The study was carried out from 2011 to 2016, in the municipality of Augusto Pestana, RS, Brazil, in a randomized block design with four repetitions in a 4 x 2 factorial scheme for nitrogen doses (0, 30, 60 and 120 kg ha-1), using oat cultivars (Barbarasul and Brisasul) in soybean/oat and corn/oat systems. In the soybean/oat system, the mass and the number of panicle spikelets and the mass of panicle grains, contributed more to promoting changes by the increase of nitrogen. In the corn/oat system, the variables with the highest contribution are the mass and the number of panicle spikelets. The increase in panicle grain mass and in panicle harvest index increases grain yield, however, together with the number of panicle grains, they reduce industrial productivity, regardless of the cultivation system.

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