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IMBIBITION, GERMINATION AND LIPID MOBILIZATION RESPONSE BY SUNFLOWER SUBJECTED TO SALT STRESS | |
Achakzai, Abdul Kabir Khan | |
通讯作者 | Achakzai, Abdul Kabir Khan |
来源期刊 | PAKISTAN JOURNAL OF BOTANY |
ISSN | 0556-3321 |
EISSN | 2070-3368 |
出版年 | 2014 |
卷号 | 46期号:6页码:1995-2002 |
英文摘要 | Salinity is one of the most important abiotic stresses in arid and semi-arid regions that substantially reduce the germination, growth and average yield of major crops. The study was mainly aimed to select the most salt tolerant cultivar of sunflower. Therefore, a pot culture experiment was conducted to study the effects of four different salinity levels having electrical conductivity viz., 1.19, 9.54, 16.48 and 22.38 mS/cm on the imbibition (water uptake), germination and lipid mobilization of seedlings of 4 varieties of sunflower (Helianthus annuus L.) i.e., DO-728, DO-730, Hysun-33 and Suncross-843. Salinity levels were prepared by dissolving calculated amount of NaCl, Na2SO4, CaCl2 and MgCl2 (4:10:5:1) in half strength Hoagland culture solution. Imbibition was studied using plastic glasses at an interval of 12 and 24 hours. While germination studies were separately carried out in plastic pots and noted after every 12 hours till 20 days. Whereas, lipid contents of the salt stress germinating seeds were determined at three time intervals viz., 48, 96 and 144 hours of germination. Results showed that there was a linear decrease in imbibition, germination and lipid mobilization as the level of salinity progressively intensifies. Maximum significant reduction in imbibition (12.88%), germination (31.03%) and lipid mobilization (38.62%) is recorded in highest dose of applied salts (22.38 mS/ cm). Results further exhibited that maximum significant reduction in imbibition (17.95%) and germination (43.05%) is recorded for variety Suncross-843. While minimum for the same attributes is recorded for variety DO-728. Therefore, in term of imbibitions and germination, DO-728 could be ranked as salt tolerant. Similarly maximum reduction (14.85%) in mobilized lipids is noted for DO-728 and minimum (40.89%) for DO-730. Therefore, in term of lipid mobilization, variety DO-730 could be ranked as salt tolerant and DO-728 as salt sensitive. While remaining 2 varieties i.e., Hysun-33 and Suncross-843 is rated as salt intermediate in response, respectively. |
英文关键词 | Sunflower Salinity Imbibition Germination Lipid mobilization Seedlings |
类型 | Article |
语种 | 英语 |
国家 | Pakistan |
收录类别 | SCI-E |
WOS记录号 | WOS:000347627500009 |
WOS关键词 | HELIANTHUS-ANNUUS L. ; SEED-GERMINATION ; SALINITY TOLERANCE ; TRITICUM-AESTIVUM ; GROWTH ; ALLEVIATION ; TEMPERATURE ; LENTIL ; COWPEA ; PLANTS |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
来源机构 | Arizona State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/184082 |
作者单位 | (1)Univ Balochistan, Dept Bot, Quetta, Pakistan |
推荐引用方式 GB/T 7714 | Achakzai, Abdul Kabir Khan. IMBIBITION, GERMINATION AND LIPID MOBILIZATION RESPONSE BY SUNFLOWER SUBJECTED TO SALT STRESS[J]. Arizona State University,2014,46(6):1995-2002. |
APA | Achakzai, Abdul Kabir Khan.(2014).IMBIBITION, GERMINATION AND LIPID MOBILIZATION RESPONSE BY SUNFLOWER SUBJECTED TO SALT STRESS.PAKISTAN JOURNAL OF BOTANY,46(6),1995-2002. |
MLA | Achakzai, Abdul Kabir Khan."IMBIBITION, GERMINATION AND LIPID MOBILIZATION RESPONSE BY SUNFLOWER SUBJECTED TO SALT STRESS".PAKISTAN JOURNAL OF BOTANY 46.6(2014):1995-2002. |
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