IMPACT OF PRIMING IN SALTY SOLUTIONS ON GERMINATION AND SEEDLING VIGOR OF SOME WHEAT CULTIVARS UNDER SALINITY CONDITIONS | ||||
| Journal of Plant Production | ||||
| Article 2, Volume 6, Issue 3, March 2015, Page 271-285 PDF (688.89 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2015.49319 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| M. S. Abo-El-Dahab* | ||||
| Department of Seed Tech. Res., Field Crops Res. Institute, ARC, Giza, Egypt. | ||||
| Abstract | ||||
| Laboratory experiments were conducted at the laboratory of Seed Technology Research Section, Mansoura during 2013 and 2014 years to study the effect of soaking wheat seed of. Misr 1, Misr 2 and Gemmiza 10 cultivars in six salty solutions i.e. CaCl2 2%, CaCl2 4%, KH2PO4 1%, KH2PO4 2 %,KCL 2 %, KCL 4% and in addition to water and dry seed on germination percentage, seed and seedling vigor as well as seedlings chemical measurements under salinity conditions (0, 5 and 10 dS/m). The results revealed that: Increasing salinity levels not only reduced seed germination but also decreased seed vigor measurements which measured by (speed germination index, germination rate and co-efficient of germination). Seedlings measurements at the highest salinity levels (10 dS/m) were most weakness comparing (0 and 5 dS/m). Cholorophll a , b, carotenoids , K+ content and K/ Na ratio decreased at high salinity levels. Misr 2 wheat cultivar showed superiority and recorded the highest values of water uptake %, seed and seedling vigor, chemical measurements and lowest Na +content .While, Gemmiza 10 wheat cultivar was the lowest of all studied measurements and the highest of Na + content. The highest values of seed, seedling vigor, chemical measurements (cholorophll a, b, carotenoids, K+ contents, and K/Na ratio) and lowest Na+ content in seedlings were obtained by wheat priming in KH2PO4 1%solution. In general, under salinity conditions, It could advised sowing seed of Misr 2 wheat cultivar and treated with KH2PO4 1%solution to improved seed germination, seedlings vigor and mitigation the harmful effect of salinity according to the obtained results in this investigation. | ||||
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