Abstract
The article considers and presents the main economic and biological parametres of new hashish-free varieties of androgenous hemp of the Central Russian type. The authors studied four zoned and recommended the following varieties of androgenous hemp into production: Diana, Ingreda, Antonio and Juliana. The research was carried out in 2013-2015 on the experimental base of Chuvash Research Institute of Agriculture. The objects of the research were androgenous hemp varieties: Diana, Ingreda, Antonio and Juliana. A comparative study of the varieties by a complex of economically valuable traits was carried out on a control seed plot. Experimental plots were 2-row, row width - 0.45 m, row length - 5.0 m, plot area - 4.5 m2. Repetition was sixfold. Sowing was carried out with a hand marker, the seeding scheme was 5x45 cm. According to the analysis, it was revealed that androgenous hemp has a high population uniformity by gender. It was established that early maturity of androgenous hemp varieties allows them to be cultivated both for seeds and fiber, which significantly increases the economic production efficiency. Androgenous hemp plants ensure simultaneous maturation of plants, which, in turn, allows mechanized harvesting to be carried out. A promising and noteworthy direction of hemp selection work is development of the so-called unisexual hybrids. It was revealed that the basis for creation of unisexual hemp is hybridization: dioecious varieties are taken for the maternal form, and monoecious varieties - for the fatherly one. In this regard, the question of creating the so-called unisexual hemp hybrids has been and remains an eternal topic of scientific research
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