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Abstract

Concentration on the growth of crops has been a hot spot of research. 为探讨盐胁迫对大麦幼苗形态建成的影响，以4个耐盐性不同的大麦品种为材料，研究了不同时期、不同盐浓度(NaCl)对大麦幼苗根数、根长、芽长及鲜重的影响。 In order to investigate the salt stress on wheat seedlings into shape, with 4 salt tolerance of different barley varieties were studied at different times, different salt (NaCl) of barley seedling root, root length, fresh weight and Ya Chang . 研究结果表明：(1)大麦普遍具有较强的耐盐能力，但不同品种的耐盐能力存在显著差异。 The results show that: (1) barley has strong universal salt, but different species of salt-tolerant capability exists significant differences. 就大多数大麦品种而言，0.3%以下盐水发芽对幼苗主要器官的生长影响不大，能较好地完成幼苗形态建成，0.5%以上盐水对幼苗主要器官的生长发育产生的影响较大。 Most of the barley varieties, 0.3 percent saline following germination of seedlings of the main organs of the little effect on growth, and better able to complete the seedlings into shape, 0.5 percent more than saline seedlings of the main organs of the growth and development have a greater impact. (2)除不同盐份对发芽10d幼苗芽长的影响不显著外，盐份对发芽5d和10d大麦幼苗主要性状产生了显著的影响，但随着发芽时间的延长，盐浓度对幼苗主要性状的影响程度均有所下降。 (2) In addition to the different salt on the 10d seedling germination Ya Chang had no significant impact, the salt on the germination of barley seedlings 5d and 10d of the main characters have had a significant impact, but as the Germination time, the concentration of seedlings of the main characters The impact has declined.
Salinity is one of the major abiotic stresses affecting agricultural production. Four barley cultivars, differing in salt tolerance, were used to study the effect of salt on the growth of barley seedlings. The traits measured included; number of roots per seedling, root length, shoot length and fresh weight of seedlings. Standard germination techniques were employed using blotting paper saturated with different NaCl solutions (water, 0.15%, 0.3%, 0.5%, and 1.0% NaCl) at 20℃. The results showed significant differences among barley cultivars. A solution of 0.3% or less NaCl showed very little effect on the seedling growth for all the cultivars. However, when the concentrations of NaCl were increased to more than 0.5%, the seedling growth of all the cultivars was significantly affected. The effect of salinity on seedling growth in its early stage (5 days after germination), was more obvious than that at 10 days after germination. Thus, for preliminary evaluation of salinity tolerance, the best criteria are number of roots per seedling, root length, shoot length and fresh weight of seedlings after 5 days of germination under 0.5% or 1.0% NaCl solution. Salinity is one of the major abiotic stresses affecting agricultural production. Four barley cultivars, differing in salt tolerance, were used to study the effect of salt on the growth of barley seedlings. The traits measured included; number of roots per seedling, root length, shoot length and fresh weight of seedlings. Standard germination techniques were employed using blotting paper saturated with different NaCl solutions (water, 0.15%, 0.3%, 0.5%, and 1.0% NaCl) at 20 ℃. The results showed significant differences among barley cultivars . A solution of 0.3% or less NaCl showed very little effect on the seedling growth for all the cultivars. However, when the concentrations of NaCl were increased to more than 0.5%, the seedling growth of all the cultivars was significantly affected. The effect of salinity on seedling growth in its early stage (5 days after germination), was more obvious than that at 10 days after germination. Thus, for preliminary evaluation of salinity tolerance, the best criteria are number of roots per seedling, root length, shoot length and fresh weight of seedlings after 5 days of germination under 0.5% or 1.0% NaCl solution

Item Type:	Article
Authors/Creators:	Xu, R and Zhou, M and Lu, F and Lu, C
Keywords:	Barley, salt, seedlings into shape; barley, salty tolerance, establishing of seedling morphology
Journal or Publication Title:	Seed
Publisher:	Seed Publications Ltd
ISSN:	0307-8884
Item Statistics:	View statistics for this item

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