Valdés-Rodríguez Ofelia Andrea, Pérez-Vázquez Arturo
Academia de Desarrollo Regional Sustentable El Colegio de Veracruz, Xalapa 91000, Mexico.
LPI3 Colegio de Postgraduados, Predio Tepetates, Veracruz 91690, Mexico.
Plants (Basel). 2019 Jul 30;8(8):258. doi: 10.3390/plants8080258.
Lam. (), L. (), and L. () are oily species known by their capability to grow in tropical and subtropical lands. However, there are no studies comparing their growth and recovery capabilities after root pruning and transplant. The purpose of this research was to compare and analyze propagation, growth, and recovery performance of these species after root pruning and transplant. We sowed 100 seeds per species and monitored their survival and growth during a 63-day period; after this, we uprooted the plants and pruned their roots 4.0 cm from their base and transplanted them. We monitored their recovery over 83 days, and then uprooted plants and measured above- and belowground data, digitized their roots in three dimensions, and calculated biomass fractions. With this information, we established allometric equations to estimate biomass fractions and root distribution models. Results indicated that had the highest propagation capabilities. and had similar recovery after root pruning and transplant. had the lowest propagation and recovery from transplant. Concerning belowground data, root pruning increased root density more than three times in , four times in , and six times in . Nevertheless, the three species maintained natural root trays. had the longest and thinnest roots and the highest number of branches, followed by , and finally , with the smallest quantity and the shortest and thickest roots. We concluded that the three species recovered well from root pruning and transplant, with improved root structure upon applying these practices.
拉姆氏（物种名）、勒氏（物种名）和洛氏（物种名）是油性植物种类，以其在热带和亚热带地区生长的能力而闻名。然而，尚无关于它们在根系修剪和移植后生长及恢复能力比较的研究。本研究的目的是比较和分析这些物种在根系修剪和移植后的繁殖、生长及恢复表现。我们每个物种播种100粒种子，并在63天的时间里监测它们的存活和生长情况；在此之后，我们将植株连根拔起，从基部起4.0厘米处修剪根系，然后进行移植。我们在83天内监测它们的恢复情况，之后将植株连根拔起，测量地上和地下数据，对根系进行三维数字化处理，并计算生物量分数。利用这些信息，我们建立了估算生物量分数的异速生长方程和根系分布模型。结果表明，[具体物种名]具有最高的繁殖能力。[具体物种名]和[具体物种名]在根系修剪和移植后的恢复情况相似。[具体物种名]从移植中的繁殖和恢复能力最低。关于地下数据，根系修剪使[具体物种名]的根密度增加了三倍多，[具体物种名]增加了四倍，[具体物种名]增加了六倍。然而，这三个物种都保持了自然根盘。[具体物种名]的根最长且最细，分支数量最多，其次是[具体物种名]，最后是[具体物种名]，其根数量最少，最短且最粗。我们得出结论，这三个物种在根系修剪和移植后恢复良好，应用这些措施后根系结构得到改善。
