Comparison of Salt Tolerance in Brassicas and Some Related Species

Abstract

In this paper the salt tolerance in Brassicas and some related species was compared. When seedlings germinated on sand cultures with liquid MS medium were considered, the relative germination rate, root length, shoot length and fresh seedling weight were significantly correlated with each other (P < 0.01), and only the relative shoot lengths were significantly different among the tested genotypes (P < 0.05); When both seedlings germinated on MS and MS plus 0.4% NaCl were considered, only the relative shoot length of seedlings germinated on MS was significantly different from that germinated on MS + 0.4% NaCl (P < 0.05), and also only the relative shoot lengths were significantly different among the tested genotypes (P < 0.01). Raphanus sativa cv. Changfeng, B. juncea cv. JC and Brassica napus cv. ZS 10 showed low salt tolerance in terms of relative germination rate, root length, shoot length and fresh seedling weight; B. oleracea cv. JF-1, Sinapis alba cv. HN-2 showed high salt tolerance in terms of relative germination rate, root length, shoot length and fresh seedling weight. Based on our result we suggest that relative shoot length might be convenient to rank the salt tolerance but cluster analysis based on multiple parameters of relative germination rate, root length, shoot length and fresh seedling weight might be more accurate in screening for salt tolerance in Brassicas and related species.

Drought and salinity stress management for higher and sustainable canola (Brassica napus L.) production: a critical review

“…Sensitivity to salt in Brassica spp. is strongly dependent on the cultivar or genotype used (e.g., Su et al, 2013), each with a different salinity tolerance or threshold level, with B. napus and B. campestris classified as semi-saline-tolerant species (Miyamoto et al, 2012). A total of 34 canola accessions showed a range of sensitivities to salt stress under hydroponic conditions (Ulfat et al, 2007).…”

Influence of Heavy Metals on Seed Germination and Early Seedling Growth in &lt;i&gt;Eruca sativa&lt;/i&gt; Mill.

“…Its seed oil is used for human nutrition, medicinal and cosmetic properties, and as a lubricant [14] [17]. By using its regeneration [18] and genetic transformation system [19] available, Eruca can be developed into a safe industrial oil crop, because of its low cross ability with the edible oilseed rape [20] and its resistance to powdery mildew [12], stem rot [21] and salt [22]. The present study was made to determine the influence of heavy metals Cu, Ni, Zn, Pb, Cd, Cr and Hg on Eruca seed germination, early seedling growth and the potential of using Eruca for phytoremediation of soils contaminated by heavy metals.…”

Effect of Potassium Chloride on Seed Germination and Early Growth of Three Rape Seed Varieties

“…Varietal results regarding root fresh weight; the variety Sindh Raya (331.93 mg root -10 ) showed greater root fresh weight than the varieties Toria selection and Sarhein-95 (253.90 and 218.56 mg root -10 ), respectively. Reduction in root fresh weight was also considered many scientists [13,15,17,18]. ), respectively.…”