研究了甜叶菊(stevia rebaudiana Bertoni)在缺水条件下对某些激发子的形态响应

IF 2.1 4区 生物学 Q2 Agricultural and Biological Sciences
Basoz Sadiq Muhealdin, S. Hamarashid, Fairuz Ibrahim Ali, N. Abdulla, Syamand Ahmad Qadir
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引用次数: 0

摘要

本研究评价了叶面喷施不同刺激剂对甜叶菊水分胁迫的调节作用。实验设计为三次重复的随机完全区组设计的分裂图。试验处理包括不同的灌溉方案(90% FC、65% FC和40% FC)和叶面施用不同的激发剂(对照、壳聚糖、水杨酸和褪黑素)。在本研究中,增加水分亏缺胁迫会降低叶绿素A和b的含量。此外,两种色素的最高含量分配给褪黑激素应用的治疗。在本研究中,90% FC灌溉条件下施褪黑素的株高、叶面积指数、生物量和类胡萝卜素含量最高,且40% FC灌溉条件下施褪黑素处理的脯氨酸、酚、DPPH、雷鲍迪苷A和甜菊糖苷含量最高。结果表明,尽管水分胁迫降低了植物的株高、叶面积指数和生物量,但不同灌溉条件下褪黑素和水杨酸的施用减缓了水分胁迫对这些性状的影响。在缺水胁迫条件下,褪黑素和水杨酸的应用也增加了脯氨酸、酚、DPPH、雷鲍迪苷和甜菊苷的含量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Studying some morphological responses of stevia (Stevia rebaudiana Bertoni) to some elicitors under water deficiency
This research evaluated the effect of foliar spraying of different elicitors on modulating the effect of water stress on the stevia. The experimental design was the split-plot based on a randomized complete block design with three repetitions. Experimental treatments included different irrigation regimes (90% FC, 65% FC, and 40% FC) and foliar application of different elicitors (control, chitosan, salicylic acid, and melatonin). In this study, the content of chlorophyll A and b was reduced by intensifying the water deficit stress. Also, the highest content of the two pigments was allocated to the treatment of melatonin application. In the present study, melatonin foliar application under 90% FC irrigation conditions had the highest plant height, leaf area index, biomass, and carotenoid content, Moreover, the highest content of proline, phenol, DPPH, rebaudioside A, and steviosid was assigned to melatonin foliar application treatment under 40% FC irrigation conditions. Results revealed, although water stress reduced plant height, leaf area index, and plant biomass, the application of melatonin and salicylic acid under different irrigation conditions moderated the effect of water stress on these traits. Application of melatonin and salicylic acid under water deficit stress conditions also increased the content of proline, phenol, DPPH, rebaudioside, and steviosid.
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来源期刊
Caryologia
Caryologia 生物-遗传学
CiteScore
1.60
自引率
23.80%
发文量
26
审稿时长
12 months
期刊介绍: Caryologia is devoted to the publication of original papers, and occasionally of reviews, about plant, animal and human karyological, cytological, cytogenetic, embryological and ultrastructural studies. Articles about the structure, the organization and the biological events relating to DNA and chromatin organization in eukaryotic cells are considered. Caryologia has a strong tradition in plant and animal cytosystematics and in cytotoxicology. Bioinformatics articles may be considered, but only if they have an emphasis on the relationship between the nucleus and cytoplasm and/or the structural organization of the eukaryotic cell.
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