New variety of white lupine Monica (Lupinus albus L.)

Abstract

Characterization of promising white lupine hybrid lines (LN5 and LN1-1) and their parental forms (Lucky801 and PI533704) was done. Biometric analysis of each variety and line was performed according to main quantitative traits and phenological stages and periods. A new variety of white lupine Monica (from line LN5) was created with a direction of use for seeds. It was obtained through repeated individual selection from the cross Lucky801 ? PI533704. The variety belongs to the medium-ripening group with a duration of the vegetation period of 129 days. It has genetically completed growth. The height of the plant was 87 cm. The variety has high lodging resistance and good adaptability to abiotic conditions. The first pods were formed at 40 cm. The pods of the plant are formed on the main stem and on shortened lateral branches of the first and second order. About 28 uncrackable pods formed on one plant. The inflorescence is medium-sized, blue-white, the seeds are white, medium-sized. The number of seeds in one plant is on average 114. The protein content of the grain is 33%. The variety is distinguished by high potential seed productivity (the mass of seeds per plant 37 g). The mass of 1000 seeds is 339 g. The average yield of grain (3150 kg/ha) in the competition variety trials exceeds the average yield of the parental forms (2940 kg/ha). By decision of the Expert Commission at the Executive Agency for Variety Testing, Field Inspection and Seed Control, Bulgaria (appointed by order RD-10-1/14.01.2022) and by order No. RD-12-1 of the Minister of Agriculture of the Republic of Bulgaria dated 02.03.2022, the Monica variety was recognized as a new and original.