草皮草对遮荫的响应在单个物种中有所不同,以及弱光的程度和质量;因此,选择耐低光照的草坪草品种对于草坪管理而不是其他做法是重要且有益的。在扬州大学江苏中国温室中,对13种百慕大基因型的茎进行了两种处理,每种处理3次重复,以建立一个月。建立的植物被转移到温室外,并用黑网对它们施加了50%的阴影。经过30天的压力治疗,进行了形态生理和生化分析.HEMA等基因的表达,评估HY5、PIF4和Cu/ZnSOD。Cynodondactylon是C4,多年生植物,生长为草坪草,用作饲料。根据不同的指标测量,最耐荫的种质是沿经度的L01和L06,沿纬度的L09和L10。同时,L02和L08更易感,分别。然而,种质在高纬度地区表现出更高的耐受性,而纵向植物表现出较少的胁迫响应。目前的研究旨在(1)在中国沿纵向和纬度梯度的13个中筛选出最耐荫性的Cynodondactylon基因型。(2)检查不同百慕大草基因型的形态生理指标;(3)评估百慕大草的各种指标是否以及如何与地理区域相关。本研究将大大推进Cynodon种质资源在育种中的应用,基因组学,管理,命名法,和系统地理学研究。它将决定性地定义自然选择和迁移是否可以驱动种群的进化反应,以有效地适应其新环境。
Responses of turfgrass to shade vary in individual species, and the degree and quality of low light; therefore, the selection of low light tolerant cultivars of turfgrass is important and beneficial for turf management rather than other practices. The stolons of thirteen bermudagrass genotypes were planted with two treatments and three replications of each treatment to establish for one month in the Yangzhou University Jiangsu China greenhouse. The established plants were transferred outside of the greenhouse, and 50% shading was applied to them with a black net. After 30 days of stress treatment, the morpho-physiological and biochemical analyses were performed. The expression of genes such as HEMA, HY5, PIF4, and Cu/ZnSOD was assessed.
Cynodon dactylon is a C4, and perennial that grows as lawn grass and is used as forage. Based on different indicator measurements, the most shade-tolerant germplasm was L01 and L06 along the longitudes and L09 and L10 along the latitudes. At the same time, L02 and L08 were more susceptible, respectively. However, germplasm showed greater tolerance in higher latitudes while longitudinal plants showed less stress response. The current study aimed (1) to screen out the most shade-tolerant
Cynodon dactylon genotype among 13 along longitudinal and latitudinal gradients in China. (2) to examine morpho-physiological indicators of different bermudagrassgenotypes; (3) to evaluate if and how differences in various indicators of bermudagrass correlated with geographic region. This study will significantly advance the use of
Cynodon germplasm in breeding, genomics, management, nomenclature, and phylogeographical study. It will decisively define whether natural selection and migration can drive evolutionary responses for populations to adapt to their new environments effectively.