黄色品种金针菇'上研金31'选育OA

Using the high-yielding Flammulina filiformis variety'Shangyan 1'(white)and the thick-pileus and sturdy-stipe F.filiformis variety'J4137'(yellow)as the parents,hybrid strains were obtained through mon-mon hybridization of monokaryotic protoplasts.These hybrid strains were then selected for high yield,thick pileus,uniform color,and suitability for industrial cultivation through primary screening,secondary screening,pilot-scale experiment,and demonstration cultivation.The results showed that under industrial cultivation conditions,compared with'Shangyan 1',the selected strain F31 exhibited a two-day reduction in both primordium formation time and fruiting body formation period.Compared with'J4137',F31 had a higher yield and increased number of fruiting bodies.Compared with the two parents,fruiting bodies of F31 showed a higher total amino acid content and lysine content.Under industrial bag cultivation conditions,F31 achieved a yield of 297.8 g,with 424 fruiting bodies and a fruiting body formation period of 28 d.Under industrial bottle cultivation conditions,it reached a yield of 459.8 g,with 1 025 fruiting bodies and a fruiting body formation period of 25 d.These results indicate that F31 has stable cultivation characteristics,strong adaptability,and is suitable for industrial-scale cultivation.In 2024,strain F31 was approved as a non-major crop variety in Shanghai,and was officially named'Shangyan Jin31'.