Source and sink indicators for determining nitrogen, plant density andgenotype effects on oil and protein contents in sunflower achenes
| العنوان: | Source and sink indicators for determining nitrogen, plant density andgenotype effects on oil and protein contents in sunflower achenes |
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| المؤلفون: | Fety Andrianasolo Nambinina, Philippe Debaeke, Luc Champolivier, Pierre Maury |
| المساهمون: | AGroécologie, Innovations, teRritoires (AGIR), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Recherche Agronomique (INRA), Terres Inovia, Agrosystèmes Cultivés et Herbagers (ARCHE), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure Agronomique de Toulouse-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Université Fédérale Toulouse Midi-Pyrénées, Projet de Recherche ANR SUNRISE 2012-19, (CIFRE N◦2010/1467), financement ANR SUNRISE 2012-19 et Association Nationale de la Recherche et de la Technologie, Institut National de la Recherche Agronomique (INRA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Institut National de la Recherche Agronomique (INRA)-École nationale supérieure agronomique de Toulouse [ENSAT]-Institut National Polytechnique (Toulouse) (Toulouse INP), Projet de Recherche SUNRISE 2012-19, (CIFRE N◦2010/1467), et Association Nationale de la Recherche et de la Technologie, ANR-11-BTBR-0005,SUNRISE,Ressources génétiques de tournesol pour l'amélioration de la stabilité de production d'huile sous c(2011) |
| المصدر: | Field Crops Research Field Crops Research, Elsevier, 2016, 192, pp.33-41. ⟨10.1016/j.fcr.2016.04.010⟩ |
| بيانات النشر: | HAL CCSD, 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | 0106 biological sciences, [SDV.SA]Life Sciences [q-bio]/Agricultural sciences, Achene, Genotype × Environment × Management(G × E × M) interaction, Soil Science, chemistry.chemical_element, Biology, Interaction, 01 natural sciences, Sink (geography), Remobilization, Human fertilization, Animal science, Dry matter, 2. Zero hunger, geography, Source–sink dynamics, geography.geographical_feature_category, fungi, food and beverages, 04 agricultural and veterinary sciences, 15. Life on land, [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics, Nitrogen, Sunflower, chemistry, Agronomy, 040103 agronomy & agriculture, Seed protein content, 0401 agriculture, forestry, and fisheries, Agronomy and Crop Science, Nitrogen uptake, 010606 plant biology & botany, Seed oil content |
| الوصف: | Given the diversification of oilseed-based products, sunflower is a competitive crop for obtaining high oil and protein concentrations; however, both are subject to genotypic and environmental variability. We analyzed individual and interaction effects of nitrogen (N), plant density (D) and genotype (G) in a 2-year field experiment. A set of “sink” (oil, protein, and hull concentrations and quantities) and “source” (leaf area duration, nitrogen uptake, nitrogen and biomass remobilizations) indicators were measured at harvest in a split-split-plot design with contrasting nitrogen (N+: 150 kg ha−1 ; N−: no fertilization), plant density (D1: 3 and D2: 4.5 plants m−2 ) and genotype (cv. LG5451HO in 2011, cv. Olledy in 2012 and cv. Kerbel in both years) treatments. We found that nitrogen had a significant positive effect on protein con- centration and plant density had a positive effect on nitrogen uptake after flowering. Oil concentration was not related to oil weight but was related to plant dry matter at flowering and biomass remobilization. Protein concentration was related to protein weight and nitrogen nutrition index at flowering and to nitrogen uptake and leaf area duration after flowering. Significant interaction effects were identified on sink (N × D, D × G) and source (N × G) indicators in the 2012 experiment, which was only partly explained by differences in initial states at flowering. In this study, the genotype that maximized oil concentration depended on nitrogen and plant density conditions, while the genotype that maximized protein concen- tration was the same regardless of cropping conditions. We highlight the importance of analyzing effects of determining factors on oil accumulation during grain filling. |
| اللغة: | English |
| تدمد: | 0378-4290 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::878d3ea6b9bb452dd704f8080610c11fTest https://hal.archives-ouvertes.fr/hal-01330518Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....878d3ea6b9bb452dd704f8080610c11f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 03784290 |
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