Selection of Rye (Secale cereal L) on increased photosynthetic activities of leaves

• Main Authors: В. В. Скорик, Волод. В. Скорик, Н. В. Симоненко, О. П. Скорик
• Format: Article
• Language: English
• Published: Ukrainian Institute for Plant Variety Examination 2009-10-01
• Series: Plant Varieties Studying and Protection
• Online Access: http://journal.sops.gov.ua/article/view/66233

Outlook for selection on increased photosynthetic productivity of winter rye plants is discussed. Donors of short-stem resistant to powdery mildew winter rye were bred with erect and drooping shape of leaf blade. In the erect form the apexes of leaf are oriented at the angle drooping form has 45° inrelation to the stem. Incomplete domination of the drooping leaf shape with ratio 1 : 2 : 1 is established. For the first time symbolic designation of dominating genes is offered with drooping leaf blade - StSt, with transitional heterozygote Stst with recessional heterozygote stst. Higher yield of grain in the comparative variety examination was proved to be received for the erect leaf form, which is predetermined by decrease of plant height, increase of kernel weight from ear, as well as of 100 kernels from plant and by quantity of redicles. Drooping leaf blade rye forms are also promising for selection on increased photosynthetic potential.