Morphological and agronomic characteristics of winter rye cultivars in connection with their resistance to lodging

Background . Lodging resistance of winter rye is associated with morphological features the stem. Searching for source material to breed non-lodging high-yielding cultivars requires studying varietal phenotypic diversity according characters stem that affect lodging and productivity ear. Materials methods Experiments were carried out in 2017–2020 at Federal Agricultural Research Center North-East (FARC North-East), Kirov. Field lodging, characteristics stem, yield, ear evaluated 16 cultivars. The study was based on International COMECON List Descriptors Genus Secale L., Methodology State Variety Trials Crops. weight segments second lower internodes measured 10 plants each cultivar under laboratory conditions. Results conclusions Negative correlations length (r= –0.55) internode (r = –0.65) revealed. Ear significantly wall thickness 0.52) –0.52). According results path analysis, main causes a decrease segment (P –0.467) –0.408), while an increase connected 0.424). differed their (LSD 05 0.8). Cvs. ‘Moskovskaya 12’, ‘Tatyana’, ‘Bylina’ ‘Yantarnaya’ identified; they are recommended as breeding resistance.