K. Dhima, I. Vasilakoglou, K. Paschalidis, N. Karagiannidis, I. Ilias
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Barley varieties grown in the saline soil produced 33.2-to 83.4% lower dry biomass, 0.0-to 78.9% fewer ears and 0.0-to 81.5% lower grain yield than those of varieties grown in the nonsaline soil. In the saline soil, the greatest grain yield was provided by the vars. Galt Brea ‘S’ and ICB 100126 (4.87 and 4.31 t ha–1, respectively), without significant differences between saline and non-saline soils. In most barley varieties, chlorophyll content and photosystem II quantum yield were greater under saline than under non-saline conditions. 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引用次数: 1
摘要
对184个大麦品种(选育品系和登记品种)的耐盐性和水分亏缺性进行了温室试验研究。在盐碱地和非盐碱地同时栽培16个耐、中耐和敏感品种,进行了2年的田间试验,对其生长和产量组成进行了评价。在温室中,K-means聚类分析结果表明,耐药品种17个,中等耐药品种72个,中等敏感品种16个,敏感品种79个。在田间,除ICB 100126、Scarlett和Meteor外,土壤盐分降低了大麦品种的发芽。盐碱地大麦品种的干生物量比非盐碱地低33.2 ~ 83.4%,穗数比非盐碱地低0.02% ~ 78.9%,籽粒产量比非盐碱地低0.02% ~ 81.5%。在盐碱地上,品种产量最高。Galt Brea ' S '和ICB 100126(分别为4.87和4.31 t ha-1),在盐渍土和非盐渍土之间无显著差异。在大多数大麦品种中,含盐条件下叶绿素含量和光系统II量子产量均高于不含盐条件。研究结果表明,大麦种质存在显著的遗传变异,这将有助于盐碱地大麦的生产。重点研究了184个大麦品种的耐盐性。大麦种质的耐盐性差异很大。-有一些大麦品种在盐碱地上生长,但产量没有明显下降。大麦可以作为盐碱度增加的土壤的替代作物系统。
Salinity tolerance evaluation of barley germplasm for marginal soil utilization
One greenhouse experiment was conducted to assess the tolerance to salinity and water deficit stresses of 184 barley varieties (breeding lines or registered varieties). Also, a 2-year field experiment was conducted to evaluate the growth and yield components of 16 of these varieties, representing tolerant, intermediate tolerant and susceptible ones, grown simultaneously in saline and nonsaline soils. In the greenhouse, the K-means cluster analysis shown that 17 varieties were tolerant, 72 varieties intermediate tolerant, 16 varieties intermediate susceptible and 79 varieties susceptible. In the field, soil salinity reduced the germination of the barley varieties except for the varieties ICB 100126, Scarlett and Meteor. Barley varieties grown in the saline soil produced 33.2-to 83.4% lower dry biomass, 0.0-to 78.9% fewer ears and 0.0-to 81.5% lower grain yield than those of varieties grown in the nonsaline soil. In the saline soil, the greatest grain yield was provided by the vars. Galt Brea ‘S’ and ICB 100126 (4.87 and 4.31 t ha–1, respectively), without significant differences between saline and non-saline soils. In most barley varieties, chlorophyll content and photosystem II quantum yield were greater under saline than under non-saline conditions. The results of this research indicated that, in barley germplasm, a remarkable genetic variation exists which would contribute to barley production in saline soils.
Highlights - The salinity tolerance of 184 barley varieties was investigated. - There was great variability to salinity tolerance among barley germplasm. - There were barley varieties which grown in saline soil without significant yield reduction. - Barley could be an alternative crop system in soils with increased salinity.
期刊介绍:
The Italian Journal of Agronomy (IJA) is the official journal of the Italian Society for Agronomy. It publishes quarterly original articles and reviews reporting experimental and theoretical contributions to agronomy and crop science, with main emphasis on original articles from Italy and countries having similar agricultural conditions. The journal deals with all aspects of Agricultural and Environmental Sciences, the interactions between cropping systems and sustainable development. Multidisciplinary articles that bridge agronomy with ecology, environmental and social sciences are also welcome.