Xing Zhiheng, Bi Guihong, Li Tongyin, Zhang Qianwen, Knight Patricia R
Department of Plant and Soil Sciences, Mississippi State University, Starkville, MS 39762, USA.
Coastal Research and Extension Center, Mississippi State University, Poplarville, MS 39470, USA.
Plants (Basel). 2024 Jun 28;13(13):1788. doi: 10.3390/plants13131788.
Danshen () is a perennial medicinal plant belonging to the Lamiaceae family. It is adapted to a wide range of soil pH with the potential to serve as an alternative crop in the United States. To enhance its cultivation and economic viability, it is crucial to develop production practices that maximize bioactive compound yields for danshen. The objective of this study was to investigate the effects of different harvest times on plant growth and subsequent yields of bioactive components of danshen. Three harvest times were selected (60, 120, or 180 days after transplanting [DAT]). In general, plants harvested at 180 DAT had higher plant growth index (PGI), shoot number, shoot weight, root number, maximum root length, maximum root diameter, and root weight compared to plants harvested at 60 or 120 DAT. However, plants harvested at 60 or 120 DAT had higher SPAD (Soil Plant Analysis Development) values. Plants harvested at 120 or 180 DAT had a higher content of tanshinone I, tanshinone IIA, cryptotanshinone, and salvianolic acid B compared to those harvested at 60 DAT. This study provides insights for optimizing the time of harvest of danshen to maximize plant growth and bioactive compound production.
丹参是一种属于唇形科的多年生药用植物。它能适应广泛的土壤酸碱度，有潜力在美国作为替代作物种植。为提高其种植和经济可行性，开发能使丹参生物活性化合物产量最大化的生产方法至关重要。本研究的目的是调查不同收获时间对丹参植株生长及后续生物活性成分产量的影响。选择了三个收获时间（移栽后60、120或180天[DAT]）。总体而言，与在60或120天DAT收获的植株相比，在180天DAT收获的植株具有更高的植株生长指数（PGI）、茎数、茎重、根数、最大根长、最大根直径和根重。然而，在60或120天DAT收获的植株具有更高的土壤植物分析发展（SPAD）值。与在60天DAT收获的植株相比，在120或180天DAT收获的植株丹参酮I、丹参酮IIA、隐丹参酮和丹酚酸B的含量更高。本研究为优化丹参收获时间以最大化植株生长和生物活性化合物产量提供了见解。
