Influence of photoperiodic conditions on the development and content of nitrogenous compounds in the VRN NILs wheat Triticum aestivum L.
Keywords: wheat (Triticum aestivum L.), near isogenic lines, genes VRN, photoperiod, development, nitrogen metabolism, productivity
AbstractThe influence of a long (16 hrs) LD and short (9 hrs) SD day on the period duration from germination to earing, the content and distribution of free amino acids and total nitrogen on the main stem organs, productivity elements and grain protein content of isogenic lines for genes VRN of hexaploid wheat created in gene pool varieties with different photoperiodic sensitivity - Mironovskaya 808 and Olviya were studied in field experiments.
The results showed that the period from germination to earing increased under the influence of short photoperiod in the studied lines, the content and distribution of amino acids and total nitrogen in the main stem organs as well as the individual productivity of plants and changed grain protein content. The level of these changes depends on the genes VRN (dominant and / or recessive). It is assumed that genes influence the development and VRN formation of the wheat productivity elements in different photoperiodic conditions indirectly, through participation in nitrogen metabolism regulation.