Effect of Saline Water Irrigation on Growth and Physiological Responses of Three Rose Rootstocks

Niu, Genhua; Rodriguez, Denise S.; Aguiniga, Lissie

doi:10.21273/hortsci.43.5.1479

Cited by 34 publications

(22 citation statements)

References 26 publications

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“…fruticosa, E. septentrionale, and T. acaulis irrigated with saline solution at an EC of 10.0 dS · m -1 decreased by 71.3%, 56.3%, 69.7%, and 48.1%, respectively. Elevated salinity has been reported to reduce plant shoot dry weight in various ornamental plants such as A. canadensis, aster perennials, E. laxum, and rose rootstocks (Hadi et al, 2014;Niu et al, 2008;Wu et al, 2016aWu et al, , 2016b. This is a consequence of salinity-induced water deficit, resulting in stunted growth and reduced leaf size described earlier.…”

Section: Resultsmentioning

confidence: 78%

“…Similarly, Sun et al (2015) documented that the SPAD readings of M. arboreus, R. brittoniana, and V. ·hybrida did not change, but S. farinacea and S. leucantha decreased significantly when irrigated weekly with saline solution at an EC of 10.0 dS · m -1 for 8 weeks. In a study of rose rootstocks by Niu et al (2008), Rosa ·fortuniana had greater SPAD readings compared with R. ·multiflora and R. ·odorata when irrigated with saline solution at an EC of 6.0 dS · m -1 for 15 weeks. These results consistently indicated that salinity stress negatively affected the chlorophyll content and the effect is dependent on plant species.…”

Section: Resultsmentioning

confidence: 99%

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Salt Tolerance of Sego SupremeTM Plants

Paudel¹,

Chen²,

Sun³

et al. 2019

horts

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Sego SupremeTM is a designated plant breeding and introduction program at the Utah State University Botanical Center and the Center for Water Efficient Landscaping. This plant selection program introduces native and adapted plants to the arid West for aesthetic landscaping and water conservation. The plants are evaluated for characteristics such as color, flowering, ease of propagation, market demand, disease/pest resistance, and drought tolerance. However, salt tolerance has not been considered during the evaluation processes. Four Sego SupremeTM plants [Aquilegia barnebyi (oil shale columbine), Clematis fruticosa (Mongolian gold clematis), Epilobium septentrionale (northern willowherb), and Tetraneuris acaulis var. arizonica (Arizona four-nerve daisy)] were evaluated for salt tolerance in a greenhouse. Uniform plants were irrigated weekly with a nutrient solution at an electrical conductivity (EC) of 1.25 dS·m−1 as control or a saline solution at an EC of 2.5, 5.0, 7.5, or 10.0 dS·m−1 for 8 weeks. After 8 weeks of irrigation, A. barnebyi irrigated with saline solution at an EC of 5.0 dS·m−1 had slight foliar salt damage with an average visual score of 3.7 (0 = dead; 5 = excellent), and more than 50% of the plants were dead when irrigated with saline solutions at an EC of 7.5 and 10.0 dS·m−1. However, C. fruticosa, E. septentrionale, and T. acaulis had no or minimal foliar salt damage with visual scores of 4.2, 4.1, and 4.3, respectively, when irrigated with saline solution at an EC of 10.0 dS·m−1. As the salinity levels of treatment solutions increased, plant height, leaf area, and shoot dry weight of C. fruticosa and T. acaulis decreased linearly; plant height of A. barnebyi and E. septentrionale also declined linearly, but their leaf area and shoot dry weight decreased quadratically. Compared with the control, the shoot dry weights of A. barnebyi, C. fruticosa, E. septentrionale, and T. acaulis decreased by 71.3%, 56.3%, 69.7%, and 48.1%, respectively, when irrigated with saline solution at an EC of 10.0 dS·m−1. Aquilegia barnebyi and C. fruticosa did not bloom during the experiment at all treatments. Elevated salinity reduced the number of flowers in E. septentrionale and T. acaulis. Elevated salinity also reduced the number of shoots in all four species. Among the four species, sodium (Na+) and chloride (Cl–) concentration increased the most in A. barnebyi by 53 and 48 times, respectively, when irrigated with saline solution at an EC of 10.0 dS·m−1. In this study, C. fruticosa and T. acaulis had minimal foliar salt damage and less reduction in shoot dry weight, indicating that they are more tolerant to salinity. Epilobium septentrionale was moderately tolerant to saline solution irrigation with less foliar damage, although it had more reduction in shoot dry weight. On the other hand, A. barnebyi was the least tolerant with severe foliar damage, more reduction in shoot dry weight, and a greater concentration of Na+ and Cl–.

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Section: Resultsmentioning

confidence: 78%

Section: Resultsmentioning

confidence: 99%

Salt Tolerance of Sego SupremeTM Plants

Paudel¹,

Chen²,

Sun³

et al. 2019

horts

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show abstract

“…However, average value of conductivity (Table 3) in the FS during the present study is twice higher than that of Kengne et al (2008). Studying the effects of saline water irrigation on plants, Niu et al (2008) have observed the foliar discoloration and the decrease of visual score by 4 points of the three rose species that they studied. The effluent from a conventional activated sludge system treating saline tannery wastewater have caused growth inhibition of Trifolium pratense at concentrations higher than 25% while Arundo donax and Sarcocornia fruticosa have showed good performances (Calheiros et al, 2012).…”

Section: Fecal Sludge Application Effects On Plant Dynamicmentioning

confidence: 46%

“…Each STRB surface was divided into 9 equal squares in order to have a precise assessment of the total number of plants and their mean height. For each square, the wilting and discoloration (yellow or brown color of drought) indicator was evaluated according to the visual score in Table 2 (Niu et al, 2008).…”

Section: Monitoring Plant Morphologymentioning

confidence: 99%

“…They also lead to reduction in photosynthesis and growth of plants (Mahajan and Tuteja, 2005). Niu et al (2008) have noted survival rates of 0-80% of plants density for the roses fed with water that conductivity range between 6 and 9 mS/cm. However, the visual score were maintained at top and all plants survived when they have been fed with water that conductivity less than 3 mS/cm.…”

Section: Conductivity Effectsmentioning

confidence: 99%

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