干旱区生态环境知识资源中心(Arid): Kaolin, boron, and zinc increase photosynthetic activity and mitigate the effects of light stress in heliconia grown under semi-arid conditions

Arid

DOI	10.1016/j.scienta.2023.112134
	Kaolin, boron, and zinc increase photosynthetic activity and mitigate the effects of light stress in heliconia grown under semi-arid conditions
	Xavier, Tamela Larissa Silva; Pereira, Vanessa dos Santos; do Nascimento, Ycaro Yuri Goncalves; Neto, Vespasiano Borges de Paiva; Souza, Rafaela Ribeiro de; Silva, Raphael Reis da; Beckmann-Cavalcante, Markilla Zunete
通讯作者	Beckmann-Cavalcante, MZ
来源期刊	SCIENTIA HORTICULTURAE
ISSN	0304-4238
EISSN	1879-1018
出版年	2023
卷号	319
英文摘要	Tropical flowers species of high commercial importance such as heliconia, if grown in semi-arid regions, can have their photosynthesis compromised and, consequently, flower production, due to high irradiation. Foliar applications of kaolin and the mineral nutrients boron and zinc may be an alternative for reducing the harmful effects of light stress. Thus, the objective of this study was to evaluate the effects of the application of these mitigating substances on physiological aspects in two species of heliconia grown under semi-arid conditions. The experimental design was randomized blocks in split-plot scheme, with four repetitions and four plants per replication. The plots consisted of two species of heliconias (H. psittacorum cv. Red Opal and H. bihai cv. Lobster Claw Two) and the subplots corresponded to three light stress mitigating substances (kaolin, boron + zinc, and control). The species H. psittacorum showed higher chlorophyll indexes, photosynthesis rate, stomatal conduc-tance, and transpiration rate than the species H. bihai. The applications of kaolin and the mineral nutrients boron + zinc caused increases in the chlorophyll a and total chlorophyll indices, photosynthesis rate, carboxylation efficiency, effective quantum yield of photosystem II, leaf temperature, and vapor pressure deficit in plants of H. bihai and H. psittacorum. It is concluded that the foliar application of kaolin and the minerals boron and zinc reduce the harmful effects caused by high luminosity, with emphasis on the kaolin particle film, which promoted better photosynthetic performance and reduced the effects of non-stomatic limitation of photosynthesis, being a promising strategy for the cultivation of heliconia in semi-arid conditions. In addition, both kaolin and the minerals boron and zinc promote the production of flowering stems of heliconia with better quality and post-harvest durability.
英文关键词	Heliconiaceae Solar irradiation Tropical flowers Stress mitigating substances Gas exchange
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001022637500001
WOS关键词	SILICON ; PLANTS ; FOLIAR
WOS类目	Horticulture
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398579
推荐引用方式 GB/T 7714	Xavier, Tamela Larissa Silva,Pereira, Vanessa dos Santos,do Nascimento, Ycaro Yuri Goncalves,et al. Kaolin, boron, and zinc increase photosynthetic activity and mitigate the effects of light stress in heliconia grown under semi-arid conditions[J],2023,319.
APA	Xavier, Tamela Larissa Silva.,Pereira, Vanessa dos Santos.,do Nascimento, Ycaro Yuri Goncalves.,Neto, Vespasiano Borges de Paiva.,Souza, Rafaela Ribeiro de.,...&Beckmann-Cavalcante, Markilla Zunete.(2023).Kaolin, boron, and zinc increase photosynthetic activity and mitigate the effects of light stress in heliconia grown under semi-arid conditions.SCIENTIA HORTICULTURAE,319.
MLA	Xavier, Tamela Larissa Silva,et al."Kaolin, boron, and zinc increase photosynthetic activity and mitigate the effects of light stress in heliconia grown under semi-arid conditions".SCIENTIA HORTICULTURAE 319(2023).