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EVALUATION OF THE WHITE LUPIN COLLECTION FOR YIELD AND QUALITY OF GREEN MASS

EVALUATION OF THE WHITE LUPIN COLLECTION FOR YIELD AND QUALITY OF GREEN MASS

Institution

National Scientific Center "Institute of Agriculture NAAS"

Section

COLLECTION FORMATION AND USE

Abstract

Goal. To evaluate the collection of white lupine accessions for the yield of green mass, protein and dry matter contents; to select sources of valuable traits to use them as starting material for white lupine varieties of different uses.Results and Discussion. The article presents the results of evaluation of the white lupine collection for the yield and quality of green mass. Green mass of lupine plants greatly depends on the cultivation conditions. The highest yields were obtained in 2013 and 2016: the averages for green manure and fodder accessions across the collection were 5.70 kg/m2 and 5.38 kg/m2, respectively, and 5.53 kg/m2 and 5.28 kg/m2, respectively. The weather conditions in 2014 and 2015 were considered as the most unfavorable years of the research. Hence, in 2014, the average green mass across the collection was 3.27 kg/m2 in green manure accessions and 3.12 kg/m2 in fodder ones, and in 2015, it was even lower –1.97 kg/m2 and 1.79 kg/m2, respectively. On average, over the 4 years, all the collection accessions can be categorized into 5 groups according to their yields: very high (5.0–5.5 kg/m2), this group only included 3 green manure accessions; high (4.5-4.9 kg/m2), this group included 6 green manure and 3 fodder accessions; medium (4.0–4.4 kg/m2), this group included 14 green manure and 18 fodder accessions; low (3.5–3.9 kg/m2), this group included 21 green manure and 26 fodder accessions; very low (3.3–3.4 kg/m2), this group included 3 fodder accessions.Thus, green manure accessions are more able to give high yields of green mass. The content of dry matter in green mass of all alkaloid-free accessions ranged from 16.9% to 18.8%, and of alkaloid-containing ones – from 17.0% to 18.5%. The protein content in dry matter of green mass in alkaloid-free accessions varied from 16.9% to 18.4% and of alkaloid-containing ones – from 16.2% to 18.5%. In the alkaloid part of the collection, there were more accessions with increased content of dry matter as compared to alkaloid-free ones. However, alkaloid-free accessions are characterized by higher protein content. The collection accessions selected are sources of valuable features that can be used as starting material to generate mowing and green manure white lupine varieties with high yields of green mass and high contents of protein and dry matter.Conclusions. Green manure accessions are distinguished by higher yields of green mass. In the alkaloid part of the collection, there are more accessions with increased content of dry matter. However, alkaloid-free accessions are characterized by higher protein content. The best collection accessions samples were selected: by green mass yield – green manure accessions Don, UD0800791 and Ell Harrach 4 and fodder accessions Serpnevyy, Chabanskyy, 7755; by dry matter content – green manure accessions UD08001708, Mestnyy, UD0800865, Don, and UD0800438 and fodder accessions Serpnevyy, Chabanskyy, Makarovskiy, Pischevoy; by protein content – green manure accessions UD0800710, UD0800791, UD0800930, and 6-003 and fodder accessions Chabanskyy, 245/3, 996/12, 979/2, and Shchedryy 50.

Keywords

white lupine, green manure and fodder collection accessions, sources of valuable traits, green mass, protein, dry matter, yield