REACTION OF FLAX VARIETIES TO ABIOTIC CONDITIONS OF THE MIDDLE PREDURALIE BY PRODUCTIVITY FORMATION

E.V. Korepanova, V.N. Goreeva, M.P. Maslova
Ighevsk State Agricultural Academy, Russia, Ighevsk city, Studencheskaya Str., 11

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Summary. Researches were conducted in 2011-2013 on a experiement field of JSC «Educational farms Iyulskoye IzhSAA» with the purpose of identification on reaction of flax varieties oа a different origins to abiotic conditions of the Middle Preduralie by productivity formation of all fiber and long fiber. It was studied 50 flax varieties from the All-Russian Institute of Plant Production (VIR) and All-Russian Research Institute of Flax (VNIIL) collection. Variety Sinichka included in the State Registry and allowed to cultivation across the Udmurt Republic was taken as the standard. Experiment was put on cespitose middle podzol middle loamy soil. Abiotic conditions while carrying out researches, had distinctions, including weather conditions of the vegetative periods were characterized by rather unequal temperature mode, and the amount of precipitation, varying during the different months. So, the 2013 year was relatively the worst for productivity formation of all fiber and long fiber by studied grades – the index of environmental conditions were negative (I_j = – 54,8 and I_J = - 47,5, respectively). In more degrees the variation in productivity of all and long fiber – for 79,8 and 78,4%, respectively was caused by influence of abiotic conditions of the environment. Variety Voshod was rather plastic on productivity of all fiber (b_i = 1,01) and long fiber (b_i = 0,96). Variety Sinichka (σd²= 0,5) had the high stability on productivity of all fiber in various abiotic conditions of the environment, Voshod (σd²= 0,6) and B-168 (σd²= 0,1) – long fiber.

Keywords: grade, flax, yield, fiber, index of environmental conditions, adaptability.