TY JOUR TI METHODICAL APPROACHES TO THE CHOICE OF THE SAMPLING CONDITIONS AND THE ASSESSMENT OF THE CHLOROPHYLL CONTENT IN THE MAIZE PLANT LEAVES KW chlorophyll KW photometry KW leaves KW maize hybrids JO Bulletin of KSAU AU Glaz, N.V. AU Kazakova, N.I. AU Ufimtseva, L.V. PY 2015 IS PB Krasnoyarsk State Agrarian University