Sources of Nutrients for High-Yielding Winter Oilseed Rape (<i>Brassica napus</i> L.) during Post-Flowering Growth
Nutrient management by winter oilseed rape (WOSR) during the seed filling period (SFP) is crucial for seed density (SD), which subsequently determines seed yield (Y). This hypothesis was evaluated based on data from field experiments (2008-2010), with six treatments with sequentially added nutrients...
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MDPI AG
2020-04-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/10/5/626 |
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| author | Witold Grzebisz Witold Szczepaniak Stanisław Grześ |
| author_facet | Witold Grzebisz Witold Szczepaniak Stanisław Grześ |
| author_sort | Witold Grzebisz |
| collection | DOAJ |
| description | Nutrient management by winter oilseed rape (WOSR) during the seed filling period (SFP) is crucial for seed density (SD), which subsequently determines seed yield (Y). This hypothesis was evaluated based on data from field experiments (2008-2010), with six treatments with sequentially added nutrients (0, NP, NPK, NPKMgS1(<sup>1</sup>/<sub>3</sub> total MgS rate—spring applied), NPKMgS2 (total MgS rate autumn applied); NPKMgS3 (<sup>2</sup>/<sub>3</sub>-autumn, <sup>1</sup>/<sub>3</sub>-spring). Nutrients accumulated in seeds were revealed as the most reliable WOSR trait, determining SD and Y. Yield was defined by the amounts of K and Mg in seeds. The amount nutrient remobilized from vegetative WOSR tissues was sufficient to cover the crop requirements during SFP for N, P, and Zn, but not for Ca, K, Mn, and Cu. The post-flowering K uptake resulted in PD, and SD increase, which subsequently resulted in a concomitant net uptake of Ca and Mg. The excessive accumulation of Ca, as well as Cu, and Mn in seeds due to a shortage of Mg, subsequently resulted in both SD and Y depression. The efficient exploitation of WOSR yielding potential as defined by SD, is possible, provided during the SFP reveals a net K and Mg uptake. |
| first_indexed | 2024-03-10T20:10:11Z |
| format | Article |
| id | doaj.art-1e01d13807c74d769229ec72809dd2a4 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T20:10:11Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-1e01d13807c74d769229ec72809dd2a42023-11-19T22:59:04ZengMDPI AGAgronomy2073-43952020-04-0110562610.3390/agronomy10050626Sources of Nutrients for High-Yielding Winter Oilseed Rape (<i>Brassica napus</i> L.) during Post-Flowering GrowthWitold Grzebisz0Witold Szczepaniak1Stanisław Grześ2Department of Agricultural Chemistry and Environmental Biogeochemistry, Poznan University of Life Sciences, Wojska Polskiego 28, 60-637 Poznan, PolandDepartment of Agricultural Chemistry and Environmental Biogeochemistry, Poznan University of Life Sciences, Wojska Polskiego 28, 60-637 Poznan, PolandDepartment of Agronomy, Poznan University of Life Sciences, Wojska Polskiego 28, 60-637 Poznan, PolandNutrient management by winter oilseed rape (WOSR) during the seed filling period (SFP) is crucial for seed density (SD), which subsequently determines seed yield (Y). This hypothesis was evaluated based on data from field experiments (2008-2010), with six treatments with sequentially added nutrients (0, NP, NPK, NPKMgS1(<sup>1</sup>/<sub>3</sub> total MgS rate—spring applied), NPKMgS2 (total MgS rate autumn applied); NPKMgS3 (<sup>2</sup>/<sub>3</sub>-autumn, <sup>1</sup>/<sub>3</sub>-spring). Nutrients accumulated in seeds were revealed as the most reliable WOSR trait, determining SD and Y. Yield was defined by the amounts of K and Mg in seeds. The amount nutrient remobilized from vegetative WOSR tissues was sufficient to cover the crop requirements during SFP for N, P, and Zn, but not for Ca, K, Mn, and Cu. The post-flowering K uptake resulted in PD, and SD increase, which subsequently resulted in a concomitant net uptake of Ca and Mg. The excessive accumulation of Ca, as well as Cu, and Mn in seeds due to a shortage of Mg, subsequently resulted in both SD and Y depression. The efficient exploitation of WOSR yielding potential as defined by SD, is possible, provided during the SFP reveals a net K and Mg uptake.https://www.mdpi.com/2073-4395/10/5/626seed filling periodnutrient remobilizationnutrient post-flowering uptakeprognosis of yield components developmentseed yield prognosis |
| spellingShingle | Witold Grzebisz Witold Szczepaniak Stanisław Grześ Sources of Nutrients for High-Yielding Winter Oilseed Rape (<i>Brassica napus</i> L.) during Post-Flowering Growth Agronomy seed filling period nutrient remobilization nutrient post-flowering uptake prognosis of yield components development seed yield prognosis |
| title | Sources of Nutrients for High-Yielding Winter Oilseed Rape (<i>Brassica napus</i> L.) during Post-Flowering Growth |
| title_full | Sources of Nutrients for High-Yielding Winter Oilseed Rape (<i>Brassica napus</i> L.) during Post-Flowering Growth |
| title_fullStr | Sources of Nutrients for High-Yielding Winter Oilseed Rape (<i>Brassica napus</i> L.) during Post-Flowering Growth |
| title_full_unstemmed | Sources of Nutrients for High-Yielding Winter Oilseed Rape (<i>Brassica napus</i> L.) during Post-Flowering Growth |
| title_short | Sources of Nutrients for High-Yielding Winter Oilseed Rape (<i>Brassica napus</i> L.) during Post-Flowering Growth |
| title_sort | sources of nutrients for high yielding winter oilseed rape i brassica napus i l during post flowering growth |
| topic | seed filling period nutrient remobilization nutrient post-flowering uptake prognosis of yield components development seed yield prognosis |
| url | https://www.mdpi.com/2073-4395/10/5/626 |
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