Open AccessELEMENTS OF YELLOW LUPIN YIELD STRUCTURE IN COENOSIS WITH DIFFERENT DENSITY
Author(s) -
Tat'yana YaGOVENKO,
Лариса Трошина,
Nina Gribushenkova
Publication year - 2019
Publication title -
adaptivnoe kormoproizvodstvo
Language(s) - English
Resource type - Journals
ISSN - 2222-5366
DOI - 10.33814/afp-2222-5366-2019-4-6-14
Subject(s) - hectare , yield (engineering) , biology , horticulture , plant density , productivity , main stem , agronomy , botany , mathematics , sowing , ecology , materials science , macroeconomics , economics , metallurgy , agriculture
The article presents the impact of coenosis density of yellow lupin on yield, its structure elements and their variability. The non-determinant vars. Prestizh and Novozybkovskiy 100 produced the highest yield in coenosis with 1.3 mln. of plants per a hectare. The spike like var. Demidovskiy was more productive in coenosis with 1.6 mln. of plants per a hectare. First of all, coenosis density influenced pods’ number of the main stem. If the plants’ number increased pods’ number of the main stem decreased by 7–17%. It was noticed that influence level of coenosis density depended on a variety. Varieties’ differentiation for the weight of 1000 seeds was registered. Each structure index has a certain range of variability. The coefficient of economic use was the lowest one – less than 20%. Variability coefficients for other characters were about 25–38%. The variability of the characters as "plant weigh", "weight of 1000 seeds" of non-determinant lines demonstrated the tendency to decrease if coenosis density increased. The characters "productivity", "pods’ number of the main stem", "seeds’ number of the main stem" at the contrary have the higher variability. Variability coefficients of the economic valuable characters demonstrated that their variability increases if coenosis density of the yellow lupin is about 1.6 mln. plants per a hectare. It’s important for selection of perspective yellow lupin lines. The tested varieties haven’t clearly differentiation by the protein content in seeds. Coenosis didn’t affect the protein content. The var. Prestizh has the extreme instability of the character "alkaloid content in seeds" and strongly reacted to the increased coenosis density.