Yield Predictive Worth of Pre-Flowering and Post-Flowering Indicators of Nitrogen Economy in High Yielding Winter Wheat
| cris.lastimport.scopus | 2025-10-23T07:00:23Z | |
| cris.virtual.author-orcid | 0000-0002-7952-387X | |
| cris.virtual.author-orcid | 0000-0002-3147-5813 | |
| cris.virtual.author-orcid | 0000-0002-3658-2394 | |
| cris.virtualsource.author-orcid | 23c65eea-f9e5-4dcc-9ecc-e10c9597d4d5 | |
| cris.virtualsource.author-orcid | 114c2f6e-b400-4596-86e7-1a8012fce92f | |
| cris.virtualsource.author-orcid | 75cca0c1-25cb-42f9-b871-1086325dbb50 | |
| dc.abstract.en | Indicators of nitrogen economy in winter wheat during vegetative development are a reliable tool for yield prognosis. This hypothesis was verified in a field experiment, carried out in the 2013/2014, 2014/2015, and 2015/2016 seasons. The field experiment, in a two-factor split-plot design, included the following systems of wheat protection (CFP): (i) N + micronutrients, (ii) N + fungicides, (iii) N + micronutrients + fungicides; and N rates: 0, 40, 80, 120, 160, 200, 240 kg N ha−1. The content and accumulation of N in wheat at the beginning of stem elongation and at heading were used for grain density and yield prediction. In the grain-filling phase, the stem N acted as a buffer, stabilizing yield at a high level. The condition for such action was the stem N equilibrium with the ear N at flowering. The N depletion from the leaves during the grain-filling period significantly depended on the grain density. The post-flowering uptake of N by wheat was affected by the grain density, which was affected by the N reserves in the stem. Yield forecast based on pre-flowering indices of nitrogen economy in cereals affects both agronomic decisions aimed at correcting the nutritional status of plants, and farm economics. | |
| dc.affiliation | Wydział Rolnictwa, Ogrodnictwa i Biotechnologii | |
| dc.affiliation.institute | Katedra Chemii Rolnej i Biogeochemii Środowiska | |
| dc.contributor.author | Szczepaniak, Witold | |
| dc.contributor.author | Grzebisz, Witold | |
| dc.contributor.author | Potarzycki, Jarosław | |
| dc.date.access | 2025-05-27 | |
| dc.date.accessioned | 2025-08-29T07:09:25Z | |
| dc.date.available | 2025-08-29T07:09:25Z | |
| dc.date.copyright | 2022-12-30 | |
| dc.date.issued | 2023 | |
| dc.description.abstract | <jats:p>Indicators of nitrogen economy in winter wheat during vegetative development are a reliable tool for yield prognosis. This hypothesis was verified in a field experiment, carried out in the 2013/2014, 2014/2015, and 2015/2016 seasons. The field experiment, in a two-factor split-plot design, included the following systems of wheat protection (CFP): (i) N + micronutrients, (ii) N + fungicides, (iii) N + micronutrients + fungicides; and N rates: 0, 40, 80, 120, 160, 200, 240 kg N ha−1. The content and accumulation of N in wheat at the beginning of stem elongation and at heading were used for grain density and yield prediction. In the grain-filling phase, the stem N acted as a buffer, stabilizing yield at a high level. The condition for such action was the stem N equilibrium with the ear N at flowering. The N depletion from the leaves during the grain-filling period significantly depended on the grain density. The post-flowering uptake of N by wheat was affected by the grain density, which was affected by the N reserves in the stem. Yield forecast based on pre-flowering indices of nitrogen economy in cereals affects both agronomic decisions aimed at correcting the nutritional status of plants, and farm economics.</jats:p> | |
| dc.description.accesstime | at_publication | |
| dc.description.bibliography | il., bibliogr. | |
| dc.description.finance | publication_nocost | |
| dc.description.financecost | 0,00 | |
| dc.description.if | 3,3 | |
| dc.description.number | 1 | |
| dc.description.points | 100 | |
| dc.description.version | final_published | |
| dc.description.volume | 13 | |
| dc.identifier.doi | 10.3390/agronomy13010122 | |
| dc.identifier.issn | 2073-4395 | |
| dc.identifier.uri | https://sciencerep.up.poznan.pl/handle/item/4499 | |
| dc.identifier.weblink | http://www.mdpi.com/2073-4395/13/1/122 | |
| dc.language | en | |
| dc.relation.ispartof | Agronomy | |
| dc.relation.pages | art. 122 | |
| dc.rights | CC-BY | |
| dc.sciencecloud | nosend | |
| dc.share.type | OPEN_JOURNAL | |
| dc.subject.en | wheat indicative organs | |
| dc.subject.en | nitrogen concentration | |
| dc.subject.en | nitrogen accumulation | |
| dc.subject.en | grain-filling period | |
| dc.subject.en | nitrogen remobilization | |
| dc.subject.en | yield prediction | |
| dc.title | Yield Predictive Worth of Pre-Flowering and Post-Flowering Indicators of Nitrogen Economy in High Yielding Winter Wheat | |
| dc.title.volume | Special Issue Nitrogen Cycle in Farming Systems | |
| dc.type | JournalArticle | |
| dspace.entity.type | Publication | |
| oaire.citation.issue | 1 | |
| oaire.citation.volume | 13 |