Introduction to culture and prospects for using leguminous herbs in selection of the northern ecotype

 
PIIS250020820001991-0-1
DOI
Publication type Article
Status Published
Authors
Occupation: PhD in Biological sciences
Affiliation: Magadan Research Institute of Agricultural
Address: Russian Federation
Affiliation: Magadan Research Institute of Agricultural
Address: Russian Federation
Occupation: PhD in Biological sciences
Affiliation: All-Russian Research Institute of Soy
Address: Russian Federation
Journal nameVestnik of The Russian agricultural science
Edition№5-2018
Pages65-70
Abstract

Introduction to the culture of new species of legumes, allocated from the native wild flora and creating high-protein varieties, fully used bioclimatic resources, adapted to the extreme conditions of the North, can solve the problem of overcoming the typical for the northern territories of protein deficiency of the bulky feed. To assess the potential productivity, the forage quality and the usefulness of using in the selection, within three years the biological, morphological, economically-valuable traits of the aboriginal ecotype Lathyrusmaritimus Bigelow have been studied under conditions of natural grassland and the test field. Indicator of the potential productivity of green mass of the ecotype under conditions of natural grassland exceeded 200 c/hectare against the backdrop of fertilizers in doseP K .The forage is 60 60 characterized by good quality: crude protein-17,5-21,7%. The period of adaptation of the specimens in new conditions, regardless of the method of introduction, amounted to three years. Besides, only 38 of collectible 150 samples yielded a productivity equal to the natural analogues. According to the authors, method of vegetative propagation has proved more effective in comparison with seed reproduction, due to the Rhizobiums, carried over with rhizosphere of the rhizomes into the test field. In the options of the experience with the vegetative reproduction the effect of biological symbiosis was achieved due to the individual characteristics of the interacting organisms, which formed the optimum combination in vivo growth. In support of this hypothesis, the authors cite the comparative analysis of the basic physical parameters of virgin and arable alluvial soils, which defines the specificity of the transformation of the top organic and accumulative part of the profile and organic matter, and, therefore, the nature of the microflora. The arable soils composition of microbial cenosis does not contain effective strains for the north ecotype Lathyrusmaritimus Bigelow. This leads to low efficiency of the seed propagation and slowly developmentof theintroduced plants in the new conditions. In order to enhance the capabilities of plants to adapt and realize the potential agronomic traits at a higher level, identified priorities for further work in the selectionof the varieties and complementary for them strains of the Rhizobiums.

Keywordsaboriginal ecotype Lathyrusmaritimus Bigelow, methods of introduction, adaptation, productivity, forage quality
Received27.10.2018
Publication date29.10.2018
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