دورية أكاديمية
Dependence of seed nitrogen concentration on plant nitrogen availability during the seed filling in pea
| العنوان: | Dependence of seed nitrogen concentration on plant nitrogen availability during the seed filling in pea |
|---|---|
| المؤلفون: | Lhuillier-Soundélé, Annabelle, Munier-Jolain, Nathalie G., Ney, Bertrand, B. |
| المساهمون: | Laboratoire de malherbologie, Institut National de la Recherche Agronomique (INRA), Institut National Agronomique Paris-Grignon (INA P-G) |
| المصدر: | ISSN: 1161-0301 ; European Journal of Agronomy ; https://institut-agro-dijon.hal.science/hal-01887461Test ; European Journal of Agronomy, 1999, 11, pp.157-166. |
| بيانات النشر: | HAL CCSD Elsevier |
| سنة النشر: | 1999 |
| المجموعة: | Institut National de la Recherche Agronomique: ProdINRA |
| مصطلحات موضوعية: | Pea, Plant N availability, Rate of seed dry matter accumulation, Rate of seed N accumulation, Seed N concentration, [SDV]Life Sciences [q-bio], [SDV.BV]Life Sciences [q-bio]/Vegetal Biology |
| الوصف: | International audience ; The final seed nitrogen (N) concentration of the pea (Pisum sativum L.) varies greatly with environment. Thesevariations seem to be related to N availability in the plant. To understand such an effect, the pattern of seed Nconcentration during seed filling was analysed at a given node as the ratio of seed N accumulation rate and seed drymatter accumulation rate. Three experiments were conducted in the field and glasshouse. Pea genotypes ‘Solara’,‘Frisson’ and its non-nodulating mutant ‘P2’ were grown and different treatments were applied to manipulate Navailability during seed filling. Treatments included N supply (addition of N fertiliser), depodding (removal of pods)and defoliation (removal of leaves). Changing the N availability during the seed filling affected the seed N concentrationin all experiments. Seed N concentration increased or decreased when plant N availability was enhanced or reducedrespectively. The response of seed N concentration to N availability was not caused by variations in the seed drymatter accumulation rate, as this rate is fixed at the beginning of the seed filling. Changes in seed N concentrationswere mainly caused by variations in the seed N accumulation rates according to N availability in the plant. Theresults demonstrate that seed N and dry matter accumulations are not similarly controlled during seed filling. Unlikethe seed dry matter accumulation rate, the seed N accumulation rate at a given node can vary with time and dependsmainly on N availability in the plant regardless of genotype. However, seeds seem to have minimal N requirements(approximately 2.6 mg g−1 of N) whatever the genotype. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | hal-01887461; https://institut-agro-dijon.hal.science/hal-01887461Test; https://institut-agro-dijon.hal.science/hal-01887461/documentTest; https://institut-agro-dijon.hal.science/hal-01887461/file/1999_Lhuillier-Sound%C3%A9l%C3%A9%20et%20al.,%201999a.pdfTest |
| الإتاحة: | https://institut-agro-dijon.hal.science/hal-01887461Test https://institut-agro-dijon.hal.science/hal-01887461/documentTest https://institut-agro-dijon.hal.science/hal-01887461/file/1999_Lhuillier-Sound%C3%A9l%C3%A9%20et%20al.,%201999a.pdfTest |
| حقوق: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.305185A5 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |