Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s11738-013-1427-2 |
Augmenting drought tolerance in sorghum by silicon nutrition | |
Ahmed, Mukhtar1; Asif, Muhammad2; Hassan, Fayyaz-ul1 | |
通讯作者 | Ahmed, Mukhtar |
来源期刊 | ACTA PHYSIOLOGIAE PLANTARUM
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ISSN | 0137-5881 |
EISSN | 1861-1664 |
出版年 | 2014 |
卷号 | 36期号:2页码:473-483 |
英文摘要 | Silicon (Si) distribution and accumulation in plant organs is widely reported as beneficial to overcome biotic and abiotic stresses. The investigation on distribution of Si in plant organs under water stress conditions was studied through experiments conducted at Arid Agriculture University, Pakistan during 2007-2009. Treatments (Si-200: 200 ml l(-1) of potassium silicate and Si-0: control or absence of silicon) were replicated thrice with two sorghum cultivars; SPV462 (drought susceptible) and Johar-1 (drought tolerant) screened using osmotic media of PEG-6000 (-4.0, -6.0, -8.0 and -10.0 MPa). The results exhibited increased leaf water potential, leaf area index, SPAD chlorophyll with increased silicon concentration in leaves and roots of drought-tolerant genotype as compared to SPV462. Johar-1 exhibited maximum values for net assimilation and relative growth rate under silicon treatment in comparison to silicon absence. Similarly, maintenance of transpiration rate, because of accumulation of silicon in leaves resulted in optimum leaf water potential and optimum growth of crop. |
英文关键词 | Silicon nutrition Drought tolerance Leaf water potential Sorghum Transpiration Water relations |
类型 | Article |
语种 | 英语 |
国家 | Pakistan ; Canada |
收录类别 | SCI-E |
WOS记录号 | WOS:000330805300022 |
WOS关键词 | SATIVA L. SEEDLINGS ; SOYBEAN PLANTS ; RICE ; GROWTH ; PHOTOSYNTHESIS ; CUCUMBER ; STRESS ; WHEAT ; TRANSPIRATION ; CONDUCTANCE |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/180364 |
作者单位 | 1.PMAS Arid Agr Univ, Dept Agron, Rawalpindi 46000, Pakistan; 2.Univ Alberta, Agr Forestry Ctr 4 10, Edmonton, AB, Canada |
推荐引用方式 GB/T 7714 | Ahmed, Mukhtar,Asif, Muhammad,Hassan, Fayyaz-ul. Augmenting drought tolerance in sorghum by silicon nutrition[J],2014,36(2):473-483. |
APA | Ahmed, Mukhtar,Asif, Muhammad,&Hassan, Fayyaz-ul.(2014).Augmenting drought tolerance in sorghum by silicon nutrition.ACTA PHYSIOLOGIAE PLANTARUM,36(2),473-483. |
MLA | Ahmed, Mukhtar,et al."Augmenting drought tolerance in sorghum by silicon nutrition".ACTA PHYSIOLOGIAE PLANTARUM 36.2(2014):473-483. |
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