Zn-quantum dot biochar regulates antioxidants and nutrient uptake to improve rapeseed growth and yield in drought stress

被引:10
作者
Alotaibi, Nahaa M. [1 ]
Alotibi, Mashael M. [2 ]
Younis, Uzma [3 ]
Hussain, Ghulam Sabir [4 ]
Dawar, Khadim [5 ]
Hareem, Misbah [6 ]
Ghoneim, Adel M. [7 ]
Fahad, Shah [8 ,9 ]
Danish, Subhan [10 ]
机构
[1] Princess Nourah bint Abdulrahman Univ, Coll Sci, Dept Biol, POB 84428, Riyadh 11671, Saudi Arabia
[2] Shaqra Univ, Coll Sci & Humanities, Biol Dept, Shaqra 15571, Saudi Arabia
[3] Islamia Univ Bahawalpur, Dept Bot, Rahim Yar Khan Campus, Rahim Yar Khan, Pakistan
[4] Bahauddin Zakariya Univ, Fac Agr Sci & Technol, Dept Agron, Multan 66000, Pakistan
[5] Univ Agr Peshawar, Dept Soil & Environm Sci, Peshawar, Pakistan
[6] Woman Univ Multan, Dept Environm Sci, Multan, Punjab, Pakistan
[7] Agr Res Ctr, Field Crops Res Inst, Giza 12112, Egypt
[8] Abdul Wali Khan Univ Mardan, Dept Agron, Khyber Pakhtunkhwa 23200, Pakistan
[9] Lebanese Amer Univ, Dept Nat Sci, Byblos, Lebanon
[10] Bahauddin Zakariya Univ, Fac Agr Sci & Technol, Dept Soil Sci, Multan 60000, Punjab, Pakistan
来源
PLANT STRESS | 2024年 / 11卷
关键词
Zn-quantum dot biochar; Rapeseed; Drought stress; Antioxidants; Gas exchange attributes; Nutrients uptake; COLORIMETRIC METHOD;
D O I
10.1016/j.stress.2023.100286
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Drought stress is one of the major abiotic factors that cause a significant decline in the crop's productivity. It can disturb photosynthesis by inducing oxidative stress by producing reactive oxygen species. Recently, the use of quantum has gained the attention of scientists due to its potential positive impacts on plants under stress conditions. That's why a current study was conducted to explore the impact of Zn-quantum dot biochar (QDB) on rapeseed growth under drought stress. There were four levels of QDB, i.e., control (no QDB), 0.2 %, 0.4 %, and 0.8 %, applied on a w/w basis in soil under normal irrigation and drought stress. Results showed that 0.8 %QDB performed significantly better in improving seedling's emergence, plant height, number of branches/plants, number of pods/plants, pod length, seed weight/plant, 1000 seeds weight, and total biomass of rapeseed under normal irrigation and drought stress. At 0.2 %, 0.4 %, and 0.8 % QDB levels, the photosynthetic rate was 9.19 %, 11.78 %, and 13.46 % higher than the control under drought stress. Compared to the control, the transpiration rate increased by 61.40 % with 0.2 % QDB, 123.46 % with 0.4 % QDB, and 199.71 % with 0.8 % QDB. The percentage increase in stomatal conductance ranged from 44 % for 0.2 % QDB to 129 % for 0.8 % QDB under drought stress. In conclusion, 0.8 %QDB can potentially reduce drought stress and improve the leaf water contents and nutrient uptake in rapeseed.
引用
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页数:14
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