EVALUATION OF SORGHUM VARIETIES/LINES FOR SALT TOLERANCE USING PHYSIOLOGICAL INDICES AS SCREENING TOOL
EVALUATION OF SORGHUM VARIETIES/LINES FOR SALT TOLERANCE USING PHYSIOLOGICAL INDICES AS SCREENING TOOL
复制标题
使用生理指标作为筛选工具评价高粱品种/品系的耐盐性
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Qaiser Abbass
中科院分区：
文献类型：
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作者：
A. Kausar;M. Ashraf;I. Ali;M. Niaz;Qaiser Abbass
盐碱是巴基斯坦灌溉农业的一个主要威胁，因为它在不同程度上对作物的生长和产量产生不利影响。因此，采取了不同的策略来克服生产率低的问题。种植耐盐作物是从盐碱地区获得经济产量的一个很好的选择，快速筛选耐盐植物的方法，特别是在其生长的早期阶段是重要的。为此，一些温室研究使用一些生理参数，即，采用发芽胁迫耐受指数（GSI）、茎长胁迫耐受指数（SLSI）、根长胁迫耐受指数（RLSI）和生物量胁迫耐受指数（BSI）对高粱耐盐品系进行鉴定。根据上述生理指标，高粱品系JS-2002和Sandalbar被归类为耐受性，Hegari高粱和JS-263为中等耐受性，而Noor为中等敏感性，FJ-115和PSV-4为敏感性。试验结果还表明，本研究中所尝试的生理参数可用于大量高粱种质的耐盐性筛选，从而筛选出适合不同盐碱地区的高粱耐盐品系，以提高产量。
Salinity is a major threat to irrigated agriculture in Pakistan as it is adversely affecting growth and yield of crops to various extents. So, different strategies have been adopted to overcome this problem of low productivity. Growing of salt tolerant crops is a good option to obtain economical yields from saline areas for which quick method to screen salt tolerant plants, particularly in early stages of their growth is important. For this purpose some green-house studies using some physiological parameters i.e., germination stress tolerance index (GSI), shoot length stress tolerance index (SLSI), root length stress tolerance index (RLSI) and biomass stress tolerance index (BSI) were conducted to identify the salt tolerant lines of sorghum. On the basis of results obtained using the above physiological criteria, sorghum lines JS-2002 and Sandalbar were categorized as tolerant, Hegari- sorghum and JS-263 medium tolerant while Noor as medium sensitive and FJ-115 and PSV-4 as sensitive ones. The results also indicated that the physiological parameters tried in the present study are useful to screen large quantity of sorghum germplasm for salt tolerance leading to selection of suitable lines that can be recommended for different saline areas to improve yields.