Lavallee Kaitlynn, Soti Pushpa Gautam, Rodrigo Hansapani, Kariyat Rupesh, Racelis Alexis
School of Earth, Environment and Marine Sciences, University of Texas-Rio Grande Valley, Edinburg, TX 78539, USA.
Department of Biology, University of Texas-Rio Grande Valley, Edinburg, TX 78539, USA.
Plants (Basel). 2021 Nov 22;10(11):2545. doi: 10.3390/plants10112545.
The incorporation of native plant species is central to restoration efforts, but this is often limited by both the availability of seeds and the relatively low viability and germination rates of commercially available seeds. Although pre-sowing treatments are commonly used to improve germination rates of seeds, the efficacy of these treatments is found to vary across species. In this study, we tested how four pre-sow treatments (physical scarification, acid scarification, cold stratification, and aerated hydropriming) affected the viability and seed germination rates of 12 commercially available plant species native to south Texas and commonly used in restoration efforts. Our results show that the viability of the seeds have a wide range, from 78% to 1.25%. Similarly, the total germination rate ranged from 62% to 0%. We found that pre-sowing treatments accelerated the germination rate in 9 of 12 plant species tested, but the effect varied by treatment. Collectively, our results identify various methods to achieve the best germination rates for native plants of south Texas, to help improve restoration efforts across the region.
纳入本地植物物种是恢复工作的核心，但这往往受到种子可用性以及市售种子相对较低的活力和发芽率的限制。尽管播种前处理通常用于提高种子发芽率，但发现这些处理的效果因物种而异。在本研究中，我们测试了四种播种前处理（物理擦伤、酸擦伤、冷层积和通气水引发）如何影响德克萨斯州南部12种市售本地植物物种的活力和种子发芽率，这些物种常用于恢复工作。我们的结果表明，种子活力范围很广，从78%到1.25%。同样，总发芽率从62%到0%不等。我们发现，播种前处理使12种受试植物中的9种发芽率加快，但效果因处理而异。总体而言，我们的结果确定了各种方法，以实现德克萨斯州南部本地植物的最佳发芽率，帮助改善该地区的恢复工作。
