The role of different stem segments in the deposition of water-soluble carbohydrates in winter wheat varieties under drought conditions

Aim. Evaluation of the role different internodes and leaf sheaths winter wheat stem in storage remobilization reserve water-soluble carbohydrates (WSC) under natural water deficit order to develop effective criteria for selection high-yielding genotypes. Methods. The specific content total amount WSC at onset end grain filling quantity remobilized parts were determined. Results. It was found that main part plants modern varieties accumulated mobilized 2nd, 3rd 4-5th (counting from above) internodes, contribution peduncle much smaller. highest depositing capacity all segments variety Kyivska 17 lowest one less productive Poradnytsia. Conclusions. values accumulation 2nd top can characterize be used assess relationships with productivity breeding arid conditions.