Yodai - a new variety of grass pea (Lathyrus sativus L.)

Abstract

The biological performance of grass pea (Lathyrus sativus L.) hybrid lines [LHL (BGE027129 ? LA5108), LHL-2 (BGE025277 ? LA5108) and LHL-3 (LA5108 ? BGE027129]) and their parental components (BGE027129, BGE025277 and LA5108 varieties) were studied in a three-year field experiment. Biometric analysis of each variety and line was done for main quantitative traits and phenological stages and periods. The height of the plants at the technological maturity of the grain reached 46 cm. The vegetation period has an average duration of 93 days. New variety Yodai was created, which was obtained by multiple individual selection from the cross BGE027129 ? LA5108 (line LHL). The new variety ripens 4-5 days before the varieties BGE027129 and LA5108. On average, 13 well-fed pods per plant were formed with a total of 22 normally developed seeds. The seeds were medium-large with a white seed coat, with a flat oval shape. The seed productivity (4.41 g/plant) exceeds the average of the parental varieties (3.80 g/plant). The weight of 1000 seeds was about 172 g. The crude protein content was 23.85%. In addition, the variety has good resistance to cracking of the pods. It is drought tolerant and weakly attacked by diseases and enemies. In 2022, by the 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-14-3 of 02.03.2022, the Yodai variety was recognized as new and original.