For the conditions of the Non-chernozem zone of the Middle Volga and Western Siberia a variety has been produced, combining high productivity and adaptability, high oil and meal quality, resistance to major diseases. Since 2000 it has been included in the State Register of protected varieties (RF patent number 0999) and approved for production.
Variety pedigree: Lipetskiy x WW 1550 (Sweden).
Botanical characteristics. The height of the plant is average (92-110 cm). The variety is resistant to lodging. The anthocyanin color of the plant is absent. The cotyledons are wide. The anthocyanin color of hypocotyl is weak. The leaf is green with no anthocyanin and with a strong waxy coating. The leaf segment development is weak. The leaf margin serration is average. The petal is yellow. The flowering time is average. The pod (called a 'silique') length (without the beak) is average. The pod beak is average. The seeds are round and black. 1000 seeds weight is 3.04 g.
Biological features. The variety is mid-ripening, the vegetation period is 96-106 days. The variety is resistant to lodging and seed shattering. The susceptibility to Alternaria and Peronosporosis is average, at the level of the standard, the susceptibility to Fusarium is poor, well below Hannah variety’s level. The variety is moderately damaged by cruciferous flea beetles.
Competitiveness. Due to its high productivity and adaptability, to its seed quality variety “Rhythm” is quite competitive in the North-Western, Central, Volga-Vyatka, Middle Volga regions and Western Siberia, where the variety has been added into the State Register and approved for production.
Main advantages. High yielding with the high oil and seed quality, this variety is oriented for mechanical harvesting. The variety is recommended for seeds and animal feed purposes. The variety provides stable seed yield in the Non-chernozem zone, in Western Siberia and in the dry conditions of the Middle Volga.
In the field tests conducted by FSBI ARIR the seed yield was 2.94 t / ha, which was higher than the similar index of Hannah variety by 0.62 t / ha, the yield of the vegetable oil was 1,21t / ha which was 0.29 t / ha higher than the index of Hannah variety.
Variety type "00".The content of erucic acid in the oil is 0.0-0.2%, the content of glucosinolates in the seeds is 0.5-0.9% (11,0-20,6 mol / g), the fat content is 43,5-47,2% and the protein content is 18,0-19,0%. The content of crude protein in the green mass is in average 17.8%.
The commercial value of “Rhythm” variety is in its ability to provide a stable yield of seeds and green mass in various regions of the Russian Federation, the variety gives the seeds of high oil and meal quality and it can also resist biotic stressors (pests and diseases).