AGRONOMIC PERFORMANCE OF TRITICALE VARIETIES (× Triticosecale Wittm.) GROWN UNDER FERTILIZATION WITH ORGANIC MANURE FROM RED CALIFORNIAN WORMS (Lumbricus rubellus)

The aim of the study was to evaluate а grain yields of triticale varieties and some parameters of productivity - plant height and structural elements of spike, as well as possible relations between the studied traits under biological cultivation. In the period 2014‒2017 three‒factor field experiment was set up with block design method with 4 replicates, plot size of 18 m2 with 550 germinated seeds per m2 . Three varieties of triticale, three fertilizing rates with organic fertilizer and two predecessors (sunflower and durum wheat) were tested on Vertisols soils. The most productive was Respect variety - 1,293 kg/ha. The greatest increase on yields was observed at a rate of 1,750 kg/ha Lumbrical - 1,416.4 kg/ha. After а predecessor of sunflower higher yield was established - 1,350.9 kg/ha. A positive correlation between grain yields and plant height for Colorit and Boomerang varieties were observed. A positive interdependence between length of spike, number of grains per spike and weight of grains per spike was founded in all the investigated varieties.