Salt tolerance and foliar spectral responses in seedlings of four ornamental herbaceous species

被引：0
|
作者：
de Oliveira, Adriana C. [1 ]
de Lacerda, Claudivan F. [1 ]
Cavalcante, Eduardo S. [1 ]
Teixeira, Adunias dos S. [1 ]
de Oliveira, Marcio R. R. [1 ]
Ferreira, Jorge F. da S. [2 ]
Sales, Jonnathan R. da S. [1 ]
Canja, Juvenaldo F. [1 ]
Bezerra, Bruno G. M. da C. [1 ]
机构：
[1] Univ Fed Ceara, Ctr Ciencias Agr, Dept Engn Agr, Fortaleza, CE, Brazil
[2] USDA ARS, US Salin Lab, Riverside, CA USA
来源：
REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL | 2024年 / 28卷 / 05期
关键词：
biosaline agriculture; seedling production; sensory analysis; ornamental plants; remote sensing;
D O I：
暂无
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Studies on using brackish water for the irrigation of ornamental species are still scarce, mainly considering qualitative aspects of the plants. Therefore, the present study aimed to identify salt tolerance and characterize leaf spectral responses of herbaceous ornamental species at the stage of commercial seedling production. The research was carried out from December 2020 to February 2021, under greenhouse conditions, in FortalezaCeara, Brazil. The experiment was conducted in a randomized block design with split plots, with main plots consisting of irrigation -water salinity levels (0.5, 2.0, 4.0, 6.0, and 8.0 dS m-1), and subplots by the species Catharanthus roseus, Celosia cristata, Celosia plumosa, and Chrysanthemum coronarium, with four replications. The evaluation parameters were dry mass production, visual sensory analysis, salt tolerance, and leaf spectral responses. Plant visual quality was maintained up to 2.0 dS m-1 for Chrysanthemum coronarium and 4.0 dS m-1 for Celosia cristata, Celosia plumosa, and Catharanthus roseus, which were classified as moderately tolerant at those respective salinity levels. Salinity caused noticeable changes in leaf spectral responses, especially in the visible region.
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页数：8
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