Wpływ nawożenia azotowego na niektóre właściwości fizjologiczne i morfologiczno-anatomiczne Lolium multiflorum Lam. (formy tetraploidalnej) [Effect of nitrogen nutrition on some physiological, morphological, and anatomical properties of tetraploidal form of Lolium multiflorum Lam.

Abstract

In pot experiments the high doses of nitrogen (3.50 g of NH<sub>4</sub>NO<sub>4</sub> per one pot with 9.5 kg of sand) cause the increase of tillering intensity, leaf assimilatory area, water as well as chlorophyll (a+b) content, total and nitrate nitrogen content, and biomass increment of Italian ryegrass (tetraploid) plants. However, these doses do not effect: the nucleic acids content, number of stomata (per surface area unit of leaf blades), number of vascular bundles in leaves, and the intensity of <sup>14</sup>CO<sub>2</sub> uptake by these leaves.