...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Pakistan journal of botany >Effects of gamma radiation on germination and physiological aspects of wheat (Triticum aestivum L.) seedlings
【24h】

Effects of gamma radiation on germination and physiological aspects of wheat (Triticum aestivum L.) seedlings

机译：γ射线对小麦幼苗发芽及生理特性的影响

获取原文
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This investigation was carried out to determine the effects of gamma radiation on germination and physiological characteristics of wheat seedlings. Two wheat genotypes (Roshan and T-65-58-8) were irradiated with 100, 200, 300 and 400 Gy. The results showed that MGT (Mean Germination Time), root and shoot length, and seedling dry weight decreased with increasing radiation doses but final germination percentage was not significantly affected by radiation doses. Biochemical differences based on proline content revealed that seedling irradiated at 100 Gy contained highest amount of proline (1.71 mg/g FW), whereas only 0.92 mg/g FW of proline was detected in non-irradiated seedlings. The highest amount of total chlorophyll content was obtained in seedlings irradiated at 100 Gy. Furthermore, the concentration of chlorophyll a was higher than chlorophyll b in both irradiated and non-irradiated seedlings. Chlorophyll and proline contents, and root and shoot dry weights in cv. Roshan were higher than those in T-65-58-8 mutant. These results show that the up-regulation of some physiological characteristics and seedling growth of wheat following gamma radiation treatment may be used for aboitic control such as drought and salt stress.
机译：进行了这项研究，以确定γ射线对小麦幼苗发芽和生理特性的影响。用100、200、300和400 Gy辐射了两种小麦基因型（Roshan和T-65-58-8）。结果表明，随着辐射剂量的增加，MGT（平均发芽时间），根和茎长以及幼苗的干重降低，但最终的发芽率不受辐射剂量的影响。基于脯氨酸含量的生化差异显示，以100 Gy辐照的幼苗中脯氨酸含量最高（1.71 mg / g FW），而在未辐照的幼苗中仅检测到0.92 mg / g FW。在100 Gy辐照的幼苗中获得了最高的总叶绿素含量。此外，在辐照和未辐照的幼苗中，叶绿素a的浓度均高于叶绿素b。叶绿素和脯氨酸含量，根和茎干重在简历中。 Roshan高于T-65-58-8突变体。这些结果表明，γ射线辐射处理后小麦某些生理特性的上调和幼苗生长可用于防治干旱和盐胁迫等农艺控制。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号