Kim Jaeyoung, Han Gyung Deok, Muthukathan Gopi, Rodrogues Renato, Hyun Do Yoon, Kim Seong-Hoon, Yu Ju-Kyung, Park Jieun, Yoo Soo-Cheul, Chung Yong Suk
Department of Plant Resources and Environment, Jeju National University, Jeju 63243, Korea.
ICAR-National Research Centre for Banana, Tiruchirappalli 620102, India.
Plants (Basel). 2021 Jul 7;10(7):1394. doi: 10.3390/plants10071394.
Kenaf ( L.) is widely used as an important industrial crop. It has the potential to act as a sustainable energy provider in the future, and contains beneficial compounds for medical and therapeutic use. However, there are no clear breeding strategies to increase its biomass or leaf volume. Thus, to attain an increase in these parameters, we examined potential key traits such as stem diameter, plant height, and number of nodes to determine the relationship among them. We hypothesized that it would be easier to reduce the amount of time and labor required for breeding if correlations among these parameters are identified. In this study, we found a strong positive correlation between height and number of nodes (Spearman's Rho = 0.67, < 0.001) and number of nodes and stem diameter (Spearman's Rho = 0.65, < 0.001), but a relatively low correlation (Spearman's Rho = 0.34, < 0.01) between height and stem diameter in the later stages of kenaf growth. We suggest that an efficient breeding strategy could be devised according to the breeding purpose, considering the correlations between various individual traits of kenaf.
红麻（L.）作为一种重要的经济作物被广泛种植。它有潜力在未来成为可持续的能源供应者，并且含有对医学和治疗用途有益的化合物。然而，目前尚无明确的育种策略来增加其生物量或叶面积。因此，为了提高这些参数，我们研究了诸如茎直径、株高和节数等潜在关键性状，以确定它们之间的关系。我们假设，如果能确定这些参数之间的相关性，将更容易减少育种所需的时间和劳动力。在本研究中，我们发现株高和节数之间存在强正相关（斯皮尔曼等级相关系数 Rho = 0.67，P < 0.001），节数和茎直径之间也存在强正相关（斯皮尔曼等级相关系数 Rho = 0.65，P < 0.001），但在红麻生长后期，株高和茎直径之间的相关性相对较低（斯皮尔曼等级相关系数 Rho = 0.34，P < 0.01）。我们建议，根据红麻各单个性状之间的相关性，可依据育种目的设计出高效的育种策略。
