Root growth and N-uptake activity of oilseed rape (Brassica napus L.) cultivars differing in nitrogen efficiency
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE, cilt.168, sa.1, ss.130-137, 2005 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 168 Sayı: 1
- Basım Tarihi: 2005
- Doi Numarası: 10.1002/jpln.200421453
- Dergi Adı: JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.130-137
- Anahtar Kelimeler: oilseed rape, cultivars, nitrogen efficiency, root methods, root production, root activity, nitrate-N uptake
- Erciyes Üniversitesi Adresli: Hayır
Özet
Nitrate-N uptake from soil depends on root growth and uptake activity. However, under field conditions N-uptake activity is difficult to estimate from soil-N depletion due to different loss pathways. We modified the current mesh-bag method to estimate nitrate-N-uptake activity and root growth of two oilseed-rape cultivars differing in N-uptake efficiency. N-efficient cultivar (cv.) 'Apex' and N-inefficient cv. 'Capitol' were grown in a field experiment on a silty clayey gleyic fluvisol near Gottingen, northern Germany, and fertilized with 0 (N(0)) and 227 (N(227)) kg N ha(-1).