期刊
JOURNAL OF PLANT NUTRITION
卷 39, 期 12, 页码 1752-1765出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/01904167.2016.1201686
关键词
Chloride; chlorophyll fluorescence; nutrient uptake; NPQ; qP; pomegranate; salinity; sodium; shoot growth
The present research was conducted to study the responses of Malas-e-Saveh' (M) and Shishe-Kab' (Sh) Iranian pomegranates to sodium chloride (NaCl) stress under greenhouse and field conditions. Treatments included waters electrical conductivity (EC = 1.5, 3, 6, 9 and 12dS m(-1) for greenhouse) and (EC = 1.05 as control, 4.61 and 7.46dS m(-1) for field studies). Interactive effects of salinity x variety indicated the highest chlorophyll and leaf potassium concentration, and the lowest leaf chloride and sodium in control under greenhouse study. Non-photochemical quenching, effective quantum yield of photochemical energy conversion in PSII reduced under the highest salinity level in field, however, basal quantum yield of non-photochemical processes in PSII increased in the highest salinity. Sodium and chloride increased with increased in salinity. Calcium, magnesium and iron significantly decreased with increased in salinity. It seems that there are differences between pomegranate cultivars and Malas-e-Saveh is more tolerant compared with Shishe Kab.
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