您好，欢迎访问中国农业科学院 机构知识库！

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Computing the effects of temperature and osmotic stress on the seed germination of Helianthus annuus L. by using a mathematical model

文献类型： 外文期刊

作者： Javid, Maryam 1 ; Ullah, Sami 1 ; Amin, Fazal 1 ; Shah, Wadood 2 ; Malik, Tabarak 3 ; Alwahibi, Mona S. 4 ; Waheed, Abdul 5 ; Ercisli, Sezai 6 ; Ali, Baber 8 ;

作者机构： 1.Univ Peshawar, Dept Bot, Peshawar 25120, Pakistan

2.Pakistan Forest Inst, Biol Sci Res Div, Peshawar 25120, Pakistan

3.Jimma Univ, Inst Hlth, Dept Biomed Sci, Jimma 378, Ethiopia

4.King Saud Univ, Coll Sci, Dept Bot & Microbiol, Riyadh 11451, Saudi Arabia

5.Chinese Acad Agr Sci, Shenzhen Branch, Guangdong Lab Lingnan Modern Agr, Genome Anal Lab,Minist Agr,Agr Genom Inst Shenzhen, Shenzhen 518124, Peoples R China

6.Ataturk Univ, Agr Fac, Dept Hort, TR-25240 Erzurum, Turkiye

7.Ata Teknokent, HGF Agro, TR-25240 Erzurum, Turkiye

8.Quaid i Azam Univ, Dept Plant Sci, Islamabad 45320, Pakistan

9.Lovely Profess Univ, Adjucnt Fac, Div Res & Dev, Phagwara, India

关键词： Germination; Osmotic potential; Hydrothermal time model; Temperature

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.6； 五年影响因子：4.9 ）

ISSN： 2045-2322

年卷期： 2024 年 14 卷 1 期

页码：

收录情况： SCI

摘要： An extremely important oil crop in the world, Helianthus annuus L. is one of the world's most significant members of the Asteraceae family. The rate and extent of seed germination and agronomic features are consistently affecting by temperature (T) and changes in water potential (psi). A broad hydrothermal time model with T and psi components could explain sunflower responses over suboptimal T and psi. A lab experiment was performed using the HTT model to discover both T and psi and their interactive effects on sunflower germination and also to figure out the cardinal Ts values. The sunflower seeds were germinated at temperatures (15 degrees C, 20 degrees C, 25 degrees C and 30 degrees C); each Ts had five constant psi s of 0, 0.3, 0.6, 0.9, and 1.2 MPa via PEG 6000 as osmotic stress inducer. The results revealed that highest germination index was found in seed grown at 20 degrees C in distilled water (0 MPa) and the lowest at 30 degrees C with osmotic stress of (- 1.2 MPa). The highest value of germination rate index was found in seed grown at 20 degrees C in distilled water (0 MPa) and the lowest at 15 degrees C with an osmotic stress of (- 1.2 MPa). In conclusion, water potential, temperature, and their interactions have a considerable impact on seed germination rate, and other metrics (GI, SVI-I, GRI, GE, SVI-II, and MGT). Seeds sown at 20 degrees C with zero water potential showed high germination metrics such as GE, GP, GRI, and T50%. The maximum value to TTsub noted at 30 degrees C in - 0.9 MPa osmotic stress and the minimum value was calculated at 15 degrees C in - 1.2 MPa osmotic stress. The result of TTsupra recorded highest at 15 degrees C in controlled group (0 MPa). Moreover, theta H was highest at 30 degrees C in controlled condition (0 MPa) and minimum value was observed at 20 degrees C under - 1.2 MPa osmotic stress. The value of theta HTT were maximum at 30 degrees C in controlled group (0 MPa) and minimum value was recorded at 15 degrees C under - 1.2 MPa osmotic potential. The base, optimum and ceiling temperatures for sunflower germination metrics in this experiment were noted 6.8, 20 and 30 degrees C respectively.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台