Chand Subhash, Roy Ajoy Kumar, Kumar Sanjay, Singh Tejveer, Yadav Vijay Kumar, Ramling Swami Sunil, Agrawal Rajiv Kumar, Malaviya Devendra Ram, Singh Awnindra Kumar, Kumar Ram Vinod, Dwivedi Krishna Kumar, Chandra Amaresh, Yadava Devendra Kumar
ICAR-Indian Grassland and Fodder Research Institute, Jhansi, 284 003, India.
ICAR-National Research Centre on Seed Spices, Ajmer, Rajasthan, 305 006, India.
Heliyon. 2024 Aug 3;10(15):e35735. doi: 10.1016/j.heliyon.2024.e35735. eCollection 2024 Aug 15.
Egyptian clover/Berseem ( L.) is the most popular winter leguminous multi-cut fodder crop widely cultivated in the northwest and central parts of India. Quality seed significantly impacts farm productivity, farmers' profitability, and socioeconomic welfare. Foundation and certified seeds enable high-quality seed production, making breeder seed (BS) the most important link in the seed supply chain. In India, berseem BS indent had increased from 1998 - 99 to 2012-13; afterwards, it followed a constant but decreasing trend. Of the 27 notified cultivars, 24 came into the seed supply chain between 1998-1999 and 2021-2022, indicating high varietal availability to stakeholders. The study examines the potential causes of the national decline in BS indent and production and the differences in these figures over time. The highest BS indent was received for the variety JB-1 (276.1 q), followed by BL-10 (205.1 q), Mescavi (165.6 q) and Wardan (153.7 q) from 1998 - 99 to 2021-22. The varietal replacement rate (VRR) is high, 43.30 %, for the varieties that have reached the age of five or less in the recent three years (2019-20 to 2021-22). Additionally, it has been calculated that if the seed chain operates at 100 % efficiency, the BS generated (48.1q) in 2021-22 can cover an area of almost 0.12 million hectares in 2024-25. The study offers an in-depth overview of berseem BS indent and production, an analysis of the difficulties encountered in BS production, and future directions for expanding variety and producing excess BS in the nation.
埃及三叶草/berseem(L.)是印度西北部和中部广泛种植的最受欢迎的冬季豆科多茬饲料作物。优质种子对农场生产力、农民盈利能力和社会经济福利有重大影响。原种和认证种子有助于高质量种子生产,使育种家种子(BS)成为种子供应链中最重要的环节。在印度,berseem BS的订单从1998 - 99年到2012 - 13年有所增加;此后,呈持续但下降的趋势。在27个已公布的品种中,有24个在1998 - 1999年至2021 - 2022年期间进入了种子供应链,表明利益相关者可获得的品种丰富。该研究考察了全国范围内BS订单和产量下降的潜在原因以及这些数据随时间的差异。从1998 - 99年到2021 - 22年,品种JB - 1的BS订单量最高(276.1公担),其次是BL - 10(205.1公担)、Mescavi(165.6公担)和Wardan(153.7公担)。在最近三年(2019 - 20年至2021 - 22年)中,使用年限达到或低于五年的品种的品种更换率(VRR)很高,为43.30%。此外,据计算,如果种子链以100%的效率运作,2021 - 22年产生的BS(48.1公担)在2024 - 25年可覆盖近12万公顷的面积。该研究深入概述了berseem BS的订单和生产情况,分析了BS生产中遇到的困难,以及该国扩大品种和生产过量BS的未来方向。