caa a22 4500 477111653 CHVBK 20180405111610.0 cr unu---uuuuu 170330e19960301xx s 000 0 eng 10.1007/BF00015300 doi (NATIONALLICENCE)springer-10.1007/BF00015300 Dry matter production and distribution of zinc in bread and durum wheat genotypes differing in zinc efficiency [Elektronische Daten] [I. Cakmak, N. Sari, H. Marschner, M. Kalayci, A. Yilmaz, S. Eker, K. Gülüt] Six bread wheat (Triticum aestivum cvs. Kiraç-66, Gerek-79, Aroona, ES 91-12, ES-14 and Kirkpinar) and four durum wheat (Triticum durum cvs. BDMM-19, Kunduru-1149, Kiziltan-91 and Durati) genotypes were grown under controlled environmental conditions in nutrient solution for 20 days to study the effect of varied supply of Zn (0 to 1 µM) on Zn deficiency symptoms in shoots, root and shoot dry matter production, and distribution of Zn in roots and shoots. Visual Zn deficiency symptoms, such as whitish-brown lesions on leaves, appeared rapidly and severly in durum wheats, particularly in Kiziltan-91 and Durati. Among the durum wheats, BDMM-19 was less affected by Zn deficiency, and among the bread wheats Kiraç-66, ES 91-12, Aroona and Gerek-79 were less affected than ES-14 and Kirkpinar. Under Zn deficiency, shoot dry matter production was decreased in all genotypes, but more distinctly in durum wheat genotypes. Despite severe decreases in shoot growth, root growth of all genotypes was either not affected or even increased by Zn deficiency. Correspondingly, shoot/root dry weight ratios were lower in Zn-deficient than in Zn-sufficient plants, especially in durum wheat genotypes. The distinct differences among the genotypes in sensitivity to Zn deficiency were closely related with the Zn content (Zn accumulation) per shoot but not with the Zn concentration in the shoot dry matter. On average, genotypes with lesser deficiency symptoms contained about 42% more Zn per shoot than genotypes with severe deficiency symptoms. In contrast to shoots, the Zn content in roots did not differ between genotypes. Shoot/root ratios of total Zn content were therefore greater for genotypes with lesser deficiency symptoms than for genotypes with severe deficiency symptoms (i.e. all durum wheat genotypes). The results suggest that the enhanced capacity of genotypes for Zn uptake and translocation from roots to shoot meristems under deficient Zn supply might be the most important factor contributing to Zn efficiency in wheat genotypes. The results also demonstrate that under severe Zn deficiency, Zn concentration in the shoot dry matter is not a suitable parameter for distinguishing wheat genotypes in their sensitivity to Zn deficiency. Kluwer Academic Publishers, 1996 bread wheat nationallicence durum wheat nationallicence genotypes nationallicence zinc concentration nationallicence zinc deficiency nationallicence zinc efficiency nationallicence Cakmak I. Faculty of Agriculture, Department of Soil Science, Cukurova University, Adana, Turkey aut Sari N. Faculty of Agriculture, Department of Soil Science, Cukurova University, Adana, Turkey aut Marschner H. Institut für Pflanzenernährung, Universität Hohenheim, 70593, Stuttgart, Germany aut Kalayci M. Transitional Agriculture Research Institute, Eskisehir, Turkey aut Yilmaz A. International Winter Cereal Research Center, Konya, Turkey aut Eker S. Faculty of Agriculture, Department of Soil Science, Cukurova University, Adana, Turkey aut Gülüt K. Faculty of Agriculture, Department of Soil Science, Cukurova University, Adana, Turkey aut Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl 180/2(1996-03-01), 173-181 0032-079X 180:2<173 1996 180 11104 https://doi.org/10.1007/BF00015300 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00015300 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cakmak I. Faculty of Agriculture, Department of Soil Science, Cukurova University, Adana, Turkey aut NATIONALLICENCE 700 1- Sari N. Faculty of Agriculture, Department of Soil Science, Cukurova University, Adana, Turkey aut NATIONALLICENCE 700 1- Marschner H. Institut für Pflanzenernährung, Universität Hohenheim, 70593, Stuttgart, Germany aut NATIONALLICENCE 700 1- Kalayci M. Transitional Agriculture Research Institute, Eskisehir, Turkey aut NATIONALLICENCE 700 1- Yilmaz A. International Winter Cereal Research Center, Konya, Turkey aut NATIONALLICENCE 700 1- Eker S. Faculty of Agriculture, Department of Soil Science, Cukurova University, Adana, Turkey aut NATIONALLICENCE 700 1- Gülüt K. Faculty of Agriculture, Department of Soil Science, Cukurova University, Adana, Turkey aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl/ 180/2(1996-03-01), 173-181 0032-079X 180:2<173 1996 180 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer