The cacao tree (Theobroma cacao), a perennial crop that serves as a source of cacao beans, can suffer from drastic climate changes such as irregular rainfall and shorter rainy seasons. The search for hybrids which are capable of producing specific metabolites favoring adaptation in new climatic conditions is a challenge in cacao farming.

中文翻译：

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聚乙二醇（PEG）作为渗透剂诱导的干旱胁迫条件下可可（Theobroma cacao L.）愈伤组织的代谢组分析

可可树（Theobroma cacao）是一种多年生作物，是可可豆的来源，它可能会遭受剧烈的气候变化，例如降雨不规律和雨季缩短。寻找能够产生有利于适应新气候条件的特定代谢物的杂交品种是可可种植中的一个挑战。