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.

Biološke performanse hibridnih linija stočnog graška (Lathirus sativus L.) [LHL (BGE027129 × LA5108), LHL-2 (BGE025277 × LA5108) i LHL-3 (LA5108 × BGE027129]) i njihovih roditeljskih komponenti (BGE027129 × LA5108) i (12712750) sorte) proučavani su u trogodišnjem poljskom ogledu. Urađena je biometrijska analiza svake sorte i linije za glavne kvantitativne osobine i fenološke faze i periode. Visina biljaka u tehnološkoj zrelosti zrna dostigla je 46 cm. Vegetacijski period u proseku traje 93 dana. Stvorena je nova sorta Iodai, koja je dobijena višestrukom individualnom selekcijom iz ukrštanja BGE027129 × LA5108 (linija LHL). Nova sorta sazreva 4-5 dana pre sorti BGE027129 i LA5108. U proseku je formirano 13 dobro hranjenih mahuna po biljci sa ukupno 22 normalno razvijena semena. Seme je bilo srednje veliko sa belom semenskom omotačem, ravnog ovalnog oblika. Produktivnost semena(4,41 g/biljci) je veća od proseka roditeljskih sorti (3,80 g/biljci). Težina 1000 semena bila je oko 172 g. Sadržaj sirovih proteina bio je 23,85%. Pored toga, sorta ima dobru otpornost na pucanje mahuna. Otporna je na sušu i slabo je napadaju bolesti i štetočine. Godine, 2022. odlukom Stručne komisije pri Izvršnoj agenciji za ispitivanje sorti, terenskih inspekcija i kontrole semena u Bugarskoj (imenovana naredbom RD-10-1/14.01.2022.) i naredbom br. RD-14-3 od 02.03.2022, sorta Iodai je prepoznata kao nova i originalna.