Photosynthetic productivity of two winter wheat varieties (Triticum aestivum L.)

Abstract

This paper deals with the influence of Mg, N and the content of chlorophylls and carotenoids on photosynthetic productivity of two new genotypes of winter wheat, Lara and Perla, at two localities, Donji Miholjac and Kutjevo, during the vegetation periods 1997/1998 and 1998/1999. The applied parameters were determined by standard methods. The results showed effects of Mg concentration on all examined parameters with the exception of chlorophyll b content. The highest correlation coefficient was with the N concentration, significant correlation between the leaf area and N concentrations and between the leaf area and chlorophyll a. Statistical analysis showed very significant relationship between the content of organic matter and examined parameters with a large number of significant correlations. The most important correlation was found between the content of organic matter and N concentration, and between chlorophyll a, chlorophyll b, carotenoids and the content of organic matter. The link between N, Mg and other examined parameters was firm and significant as well as under strong influence of external factors.

Changes in growth and photosynthetic capacity of cucumber seedlings in response to nitrate stress

“…Pigments can absorb solar energy and transfer it to chemical energy used for synthesis of ATP and glucose. A positive correlation between leaf nitrogen content and the photosynthetic pigment content is well documented for a number of plant species (Bojovic and Stojanovic, 2005;Fritshi and Ray, 2007;Houles et al, 2007;Sabo et al, 2002). In the present study, not only mid-but also high-level nitrate resulted in the increase of photosynthetic pigment content during early treatment period ( Figure 3A).…”

Effect of nitrogen fertilizers on root criteria, pigments and carbohydrates of Vignasinensis L. and Helianthus annuus L. plants.

“…Chlorophyll content is of particular significance to precision in agriculture as an indicator of photosynthetic activity. Nitrogen concentration in green vegetation is related to chlorophyll content, and therefore indirectly to one of the basic plant physiological processes which in photosynthesis (Sabo et al, 2002;Bojovic and Stojanovic, 2005;Tranaviciene et al, 2008).…”

Responses of maize crop (Zea mays L.) to foilar spraying with humic acid at different nitrogen levels

“…Nitrogen plays a vital role in nutritional and physiological status of plants, it improved the chlorophyll pigments (Mahama et al, 2016), increased dry matter accumulation (Uribelarrea et al, 2009), enhanced plant physiological processes such as photosynthesis (Sabo et al, 2002) fayzafaheede and promotes changes in mineral composition of plant 56 (Uribelarrea et al, 2009). Hence, nitrogen plays a key role in many metabolic reactions, it is an essential element of amino acids, building blocks of proteins and part of the nucleic acids (DNA and RNA).…”