干旱区生态环境知识资源中心(Arid): Photosynthetic pigments and photochemical efficiency of precocious dwarf cashew (Anacardium occidentale L.) under salt stress and potassium fertilization

Arid

DOI	10.3934/agrfood.2019.4.1007
	Photosynthetic pigments and photochemical efficiency of precocious dwarf cashew (Anacardium occidentale L.) under salt stress and potassium fertilization
	de Lima, Geovani S.; Neto, Vicente Elias da S.; Gheyi, Hans R.; Nobre, Reginaldo G.; Diniz, Genilson L.; dos Anjos Soares, Lauriane A.; Fernandes, Pedro D.; de Almeida, Fernandes A.; Pinheiro, Francisco Wesley A.
通讯作者	de Lima, GS
来源期刊	AIMS AGRICULTURE AND FOOD
ISSN	2471-2086
出版年	2019
卷号	4 期号:4 页码:1007-1019
英文摘要	Cashew cultivation is an activity of great socioeconomic relevance, especially for agriculture in the semi-arid region of Northeast Brazil, standing out as an option to generate jobs and income. Thus, the present study aimed to evaluate the photosynthetic pigments and photochemical efficiency of precocious dwarf cashew under salt stress and potassium fertilization. The study was conducted using a Regolithic Neosol with sandy loam texture, adopting a randomized block design in 5 x 2 factorial arrangement, which corresponded to five levels of electrical conductivity of irrigation water-ECw (0.4; 1.2; 2.0; 2.8 and 3.6 dS m(-1)) associated with two doses of potassium fertilization-KD (100 and 150% of recommendation), with three replicates and two plants per plot. Increasing water salinity inhibited chlorophyll synthesis and decreased electron transport rate and quantum yield of non-regulated energy dissipation in precocious dwarf cashew, at 50 days after sowing. There was significant interaction for chlorophyll a and b contents and the effects of salt stress were intensified by potassium doses on the chlorophyll b content of precocious dwarf cashew. Potassium doses of 100 and 150% of recommendation (150 and 225 mg K2O kg(-1) of soil) do not mitigate the effect of salt stress on photosynthetic pigment synthesis and photochemical efficiency of cashew plants in the rootstock formation phase.
英文关键词	Anacardium occidentale L. water salinity attenuating agent water scarcity semi-arid
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000502000300009
WOS关键词	YELLOW PASSION-FRUIT ; SALINE WATER ; PLANTS ; FLUORESCENCE ; CHLOROPHYLL ; TOLERANCE ; GROWTH ; GRASSES
WOS类目	Agriculture, Multidisciplinary ; Agronomy
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/2XILL650/333977
作者单位	[de Lima, Geovani S.; Neto, Vicente Elias da S.; Diniz, Genilson L.; dos Anjos Soares, Lauriane A.; de Almeida, Fernandes A.] Univ Fed Campina Grande, Acad Unit Agr Sci, Ctr Agrifood Sci & Technol, Pombal, PB, Brazil; [Gheyi, Hans R.] Univ Fed Reconcavo Bahia, Nucleus Soil & Water Engn, Cruz Das Almas, BA, Brazil; [Nobre, Reginaldo G.] Univ Fed Rural Semi Arido, Dept Sci & Technol, Caraubas, RN, Brazil; [Fernandes, Pedro D.; Pinheiro, Francisco Wesley A.] Univ Fed Campina Grande, Ctr Technol & Nat Resources, Campina Grande, Paraiba, Brazil
推荐引用方式 GB/T 7714	de Lima, Geovani S.,Neto, Vicente Elias da S.,Gheyi, Hans R.,et al. Photosynthetic pigments and photochemical efficiency of precocious dwarf cashew (Anacardium occidentale L.) under salt stress and potassium fertilization[J],2019,4(4):1007-1019.
APA	de Lima, Geovani S..,Neto, Vicente Elias da S..,Gheyi, Hans R..,Nobre, Reginaldo G..,Diniz, Genilson L..,...&Pinheiro, Francisco Wesley A..(2019).Photosynthetic pigments and photochemical efficiency of precocious dwarf cashew (Anacardium occidentale L.) under salt stress and potassium fertilization.AIMS AGRICULTURE AND FOOD,4(4),1007-1019.
MLA	de Lima, Geovani S.,et al."Photosynthetic pigments and photochemical efficiency of precocious dwarf cashew (Anacardium occidentale L.) under salt stress and potassium fertilization".AIMS AGRICULTURE AND FOOD 4.4(2019):1007-1019.