publication . Article . 2015

The Effect of Nitrate Levels and Harvest Times on Fe, Zn, Cu, and K, Concentrations and Nitrate Reductase Activity in Lettuce and Spinach

Z. Gheshlaghi; R. Khorassani; G.H. Haghnia; M. Kafi;
Open Access Persian
  • Published: 01 Sep 2015 Journal: Tulīd va Farāvarī-i Maḥṣūlāt-i Zirā̒ī va Bāghī (issn: 2251-8517, Copyright policy)
  • Publisher: Isfahan University of Technology
Abstract
Leafy vegetables are considered as the main sources of nitrate in the human diet. In order to investigate the effect of nitrate levels and harvest times on nitrate accumulation, nitrate reductase activity, concentrations of Fe, Zn, Cu and K in Lettuce and Spinach and their relation to nitrate accumulation in these leafy vegetables, two harvest times (29 and 46 days after transplanting), two vegetable species of lettuce and spinach and two concentrations of nitrate (10 and 20 mM) were used in a hydroponics greenhouse experiment with a completely randomized design and 3 replications. Modified Hoagland and Arnon nutrient solutions were used for the experiment. The ...
Subjects
Medical Subject Headings: food and beverages
free text keywords: Nitrate accumulation, Micronutrients, Lettuce, Spinach, Nitrate reductase, Agriculture, S, Agriculture (General), S1-972
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