The effect of stand structure on the grain quality of spring barley

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25328859%3A_____%2F19%3AN0000002" target="_blank" >RIV/25328859:_____/19:N0000002 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43210/19:43915648

Výsledek na webu

<a href="https://www.agriculturejournals.cz/publicFiles/584_2018-PSE.pdf" target="_blank" >https://www.agriculturejournals.cz/publicFiles/584_2018-PSE.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/584/2018-PSE" target="_blank" >10.17221/584/2018-PSE</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of stand structure on the grain quality of spring barley

Popis výsledku v původním jazyce

The results of 81 different crop management practices in spring barley grown in small-plot field trials on fertile soils in central Moravia were assessed during 2014-2016 with the aim to achieve the highest gross margin (GM - calculated as the difference between revenues and direct costs). GM was most affected by protein content in the grain below 12% corresponding to malting quality. Analyses identified greater determination level of non-linear relationships between stand structure elements and the content of nitrogen substances in the grain. This indicates that the probability of obtaining high quality malting barley is increased when a high level of sinks (number of grains/m(2)) corresponding to availability of sources, mainly water, is formed by optimal plant density (300-400/m(2)) and balanced combination of both structural elements of crop stand, i.e. - number of spikes per plant (2-4) and number of grains per spike (18-26). In case that the high level of sinks will be formed predominantly by one element, the risk of higher protein content in grain increases. This constitutes the requirement of early sowing and uniform, synchronized tillering and efficient use of nitrogen fertilizers.

Název v anglickém jazyce

The effect of stand structure on the grain quality of spring barley

Popis výsledku anglicky

The results of 81 different crop management practices in spring barley grown in small-plot field trials on fertile soils in central Moravia were assessed during 2014-2016 with the aim to achieve the highest gross margin (GM - calculated as the difference between revenues and direct costs). GM was most affected by protein content in the grain below 12% corresponding to malting quality. Analyses identified greater determination level of non-linear relationships between stand structure elements and the content of nitrogen substances in the grain. This indicates that the probability of obtaining high quality malting barley is increased when a high level of sinks (number of grains/m(2)) corresponding to availability of sources, mainly water, is formed by optimal plant density (300-400/m(2)) and balanced combination of both structural elements of crop stand, i.e. - number of spikes per plant (2-4) and number of grains per spike (18-26). In case that the high level of sinks will be formed predominantly by one element, the risk of higher protein content in grain increases. This constitutes the requirement of early sowing and uniform, synchronized tillering and efficient use of nitrogen fertilizers.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

<a href="/cs/project/QJ1530373" target="_blank" >QJ1530373: Integrovaná ochrana obilnin proti patogenům, plevelům a škůdcům pro udržitelné produkce potravin, krmiv a surovin</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Plant, Soil and Environment

ISSN

1214-1178

e-ISSN

1805-9368

Svazek periodika

65

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

205-210

Kód UT WoS článku

000465309400006

EID výsledku v databázi Scopus

2-s2.0-85067939594