• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>African Journal of Biotechnology >Salinity effect and seed priming treatments on the germination of Suaeda salsa in the tidal marsh of the Yellow River estuary
【24h】

Salinity effect and seed priming treatments on the germination of Suaeda salsa in the tidal marsh of the Yellow River estuary

机译：盐度效应和种子引发处理对黄河口潮汐沼泽沙地鳄发芽的影响

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

摘要

The effects of salinity and seed priming treatments (hydropriming, water, KNO3?and KH2PO3) on the germination of the euhalophyte?Suaeda salsa?in intertidal zone of the Yellow River estuary were investigated. Results show that the seed germination percentage decreased with increasing NaCl concentration, and at the high NaCl level (800 mM), the lowest germination percentage was recorded. At the low NaCl levels, the highest germination rate was observed on day two and the seedling length was promoted slightly. In contrast, the germination delayed and the seedling length decreased at the high salinity. According to the survival functions, we also found that, at the low salinity, the seeds germinated quickly at the initial days and then the germination rate decreased, while few seeds germinated at the initial days at the high salinity. From the results of germination percentage and seedling length, we found that the effect of Yellow river water on germination was similar to the 400 mM NaCl. For priming treatments, the hydropriming has no promotion to the seeds germination, but it promoted the seedling growth at the river water and 400 mM NaCl. Seeds primed with KNO3?could improve the germination at the low salinity, while priming with KH2PO4?could improve the seedling growth at the high salinity, indicating that seed priming with proper nutrient (N, P) solutions could improve the germination or seedling growth as the nutrient (N, P) availability in the soil of S. salsa?marsh was very limited.
机译：研究了盐度和种子引发处理（加水，水，KNO3 +和KH2PO3）对黄河口潮间带真盐藻类盐碱蓬发芽的影响。结果表明，随着NaCl浓度的增加，种子的发芽率降低;在高NaCl水平（800 mM）下，种子的发芽率最低。在低NaCl水平下，第二天观察到最高发芽率，幼苗长度略有提高。相反，在高盐度下发芽延迟并且幼苗长度减少。根据存活函数，我们还发现，在低盐度下，种子在开始时发芽很快，然后发芽率下降，而在高盐度下，种子在发芽后几天发芽的情况很少。从发芽率和幼苗长度的结果，我们发现黄河水对发芽的影响与400 mM NaCl相似。对于启动处理，加氢启动没有促进种子发芽，但促进了河水和400 mM NaCl的幼苗生长。用KNO3引发的种子可以在低盐度下改善发芽，而用KH2PO4引发的种子可以在高盐度下改善幼苗的生长，这表明用适当的营养（N，P）溶液引发的种子可以改善发芽或幼苗的生长，因为S. salsa？marsh土壤中的养分（N，P）利用率非常有限。

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