The cashew is an important nut crop cultivated in the tropical regions. It is known for its economic and nutritional value. Phenology is the study of seasonal timing of recurring events in the annual growth cycle. A generic scale such as the Biologische Bundesantalt, Bundessortenamt and Chemische Industrie (BBCH) scale defines developmentally similar growth stages of different crops and within it, more specific scales for individual species can be developed. In the current study, detailed descriptions and codes are proposed for the growth stages of cashew using a modified three‐digit scale of BBCH. Seven principal growth stages viz. bud, leaf and shoot development, inflorescence emergence, flowering, fruit development, and fruit maturity were described. A total of thirty‐seven secondary growth stages were identified and described within the seven principal growth stages. Due to the importance of phenological growth stages in crop management and crop improvement, the proposed phenological scale is expected to facilitate better adoption of cultural practices, efficient germplasm characterisation and help in studying the impact of climate change on cashew production.

中文翻译：

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根据扩展的BBCH量表，腰果树（Anacardium occidentale L.）的物候生长阶段

腰果是热带地区种植的重要坚果作物。它以其经济和营养价值而闻名。物候学是研究年度增长周期中重复发生事件的季节性时间安排。通用等级，例如德国联邦参议院的生物等级，德国联邦参议院的等级和化学工业等级（BBCH），定义了不同作物在生长上相似的生长阶段，在其中，可以为各个物种制定更具体的规模。在当前的研究中，使用改良的BBCH三位数量表对腰果的生长阶段提出了详细的描述和代码。七个主要的成长阶段，即。描述了芽，叶和芽的发育，花序出苗，开花，果实发育和果实成熟。在七个主要的成长阶段中，总共确定并描述了37个第二成长阶段。由于物候生长阶段在作物管理和作物改良中的重要性，预期的物候规模有望促进更好地采用文化习俗，有效地进行种质鉴定，并有助于研究气候变化对腰果生产的影响。