Bomma Naresh, Shruthi H B, Soregaon Chandrakant D, Gaddameedi Anil, Suma Krishnappa, Pranati Jwala, Chandappa Lohithaswa H, Patil D K, Kumar Niraj, Sandeep S, Vemula Anilkumar, Gangashetty Prakash I
Pigeonpea Breeding, Accelerated Crop Improvement, International Crops Research Institute for the Semi-Arid Tropics, Hyderabad, Telangana, India.
College of Agriculture, Vijayapura, University of Agricultural Sciences (UAS), Dharwad, Karnataka, India.
Front Plant Sci. 2024 Jul 19;15:1396826. doi: 10.3389/fpls.2024.1396826. eCollection 2024.
Pigeonpea [ (L.) Millspaugh] is a widely grown pulse with high seed protein content that contributes to food and nutritional security in the Indian subcontinent. The majority of pigeonpea varieties cultivated in India are of medium duration (<180 days to maturity), which makes it essential for breeders to focus on the development of stable high-yielding varieties. The diverse agroecological regime in the Indian subcontinent necessitates an efficient multi-environment study by taking into consideration genotype (G) × environment (E) interaction (GEI) that has a significant impact on traits like grain yield (GY) in developing high-yielding and widely adaptable varieties. In the present study, 37 pigeonpea genotypes were evaluated during the 2021 rainy season at ARS Badnapur, ARS Tandur, BAU Ranchi, GKVK Bengaluru, and ICRISAT Patancheru. The GEI was significant on the grain yield ( < 0.01), and hence, genotype + genotype × environment (GGE) and additive main effects and multiplicative interaction (AMMI) biplots along with AMMI stability value (ASV) and yield relative to environmental maximum (YREM) statistics were used to identify stable high-yielding genotypes. The interaction principal component analysis 1 and 2 (IPC1 and IPC2) explained 40.6% and 23.3% variations, respectively. Based on the rankings of genotypes, G37 (ICPL 20205), G35 (ICPL 20203), G8 (ICPL 19404), G17 (ICPL 19415), and G9 (ICPL 19405) were identified as ideal genotypes. Discriminativeness vs. representativeness identified GKVK Bengaluru as an ideal environment for comprehensive evaluation of test genotypes. However, ICPL 19405 was identified as the potentially stable high-yielding genotype for further testing and release across the test environments based on its mean grain yield (1,469.30 kg/ha), least ASV (3.82), and low yield stability index (YSI) of 13.
木豆[ (L.) Millspaugh]是一种广泛种植的豆类，种子蛋白质含量高，对印度次大陆的粮食和营养安全有重要贡献。印度种植的大多数木豆品种生育期适中（<180天成熟），这使得育种者必须专注于培育稳定的高产品种。印度次大陆多样的农业生态环境要求通过考虑基因型（G）×环境（E）互作（GEI）进行高效的多环境研究，GEI对高产且广泛适应品种的籽粒产量（GY）等性状有重大影响。在本研究中，2021年雨季期间在ARS巴德纳布尔、ARS坦杜尔、BAU兰契、GKVK班加罗尔和ICRISAT帕坦切尔对37个木豆基因型进行了评估。GEI对籽粒产量有显著影响（<0.01），因此，利用基因型+基因型×环境（GGE）和加性主效应及乘积互作（AMMI）双标图以及AMMI稳定性值（ASV）和相对于环境最大值的产量（YREM）统计量来鉴定稳定的高产基因型。互作主成分分析1和2（IPC1和IPC2）分别解释了40.6%和23.3%的变异。根据基因型排名，G37（ICPL 20205）、G35（ICPL 20203）、G8（ICPL 19404）、G17（ICPL 19415）和G9（ICPL 19405）被鉴定为理想基因型。区分性与代表性分析确定GKVK班加罗尔是全面评估测试基因型的理想环境。然而，基于其平均籽粒产量（1469.30千克/公顷）、最低ASV（3.82）和13的低产量稳定性指数（YSI），ICPL 19405被鉴定为潜在稳定的高产基因型，可在各测试环境中进一步测试和推广。
