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Effects of potassium rates and types on growth, leaf gas exchange and biochemical changes in rice (Oryza sativa) planted under cyclic water stress

Author

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  • Mohd Zain, Nurul Amalina
  • Ismail, Mohd Razi

Abstract

Three levels of potassium rates [80kgK2Oha−1, 120kgK2Oha−1 and 160kgK2Oha−1) and two types potassium (KCl and K2SO4) on rice under cyclic water stress 15 days and the absolute control (80kgK2Oha−1 of KCl fertilizer on rice under control flooded) were exposed to rice to investigate the influence of potassium in minimizing cyclic water stress effects in rice. It was found as fertilization rates increased from 80>120>160kgK2Oha−1 the production of proline was increased. The increase in proline production was simultaneously enhanced the production of Catalase and Maliondialdehyde. As the potassium rate increased from 80>120>160kgK2Oha−1, the transpiration rate was observed to be increased in both potassium types. The result suggested that high potassium rates would reduce water stress effects by having high transpiration rate. High transpiration rate would increase the nutrient uptake that would repair the damage tissue under water stress thus reduce the oxidative stress of rice under water stress condition. This been showed by high significant positive correlations of transpiration rate with CAT activity (r=0.871; p≤0.05), MDA (r=0.914; p≤0.05) and Proline (r=0.842; p≤0.05). It was found that the increase of K rates by KCl increased NAR higher than the increased K rates in K2SO4. This might be due to higher absorption of K element in rice by KCl compared to K2SO4. The study has showed that application of potassium either KCl or K2SO4 would minimize the effects on rice growth and physiology under cyclic water stress. The current study also suggested that plant tolerate to cyclic water stress by increased the production of proline, MDA and decrease of Catalase activity to protect the plant from damage from water stress.

Suggested Citation

  • Mohd Zain, Nurul Amalina & Ismail, Mohd Razi, 2016. "Effects of potassium rates and types on growth, leaf gas exchange and biochemical changes in rice (Oryza sativa) planted under cyclic water stress," Agricultural Water Management, Elsevier, vol. 164(P1), pages 83-90.
    • Handle: RePEc:eee:agiwat:v:164:y:2016:i:p1:p:83-90
    DOI: 10.1016/j.agwat.2015.09.022
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    1. Farooq, Muhammad & Hussain, Mubshar & Ul-Allah, Sami & Siddique, Kadambot H.M., 2019. "Physiological and agronomic approaches for improving water-use efficiency in crop plants," Agricultural Water Management, Elsevier, vol. 219(C), pages 95-108.
    2. Qu, Zhaoming & Chen, Qi & Yin, Shuhan & Feng, Haojie & Liu, Yanli & Li, Chengliang, 2024. "Effects of drip irrigation coupled with controlled release potassium fertilizer on maize growth and soil properties," Agricultural Water Management, Elsevier, vol. 301(C).
    3. Nandi, R. & Mukherjee, S. & Bandyopadhyay, P.K. & Saha, M. & Singh, K.C. & Ghatak, P. & Kundu, A. & Saha, S. & Nath, R. & Chakraborti, P., 2023. "Assessment and mitigation of soil water stress of rainfed lentil (Lens culinaries Medik) through sowing time, tillage and potassic fertilization disparities," Agricultural Water Management, Elsevier, vol. 277(C).
    4. Ishfaq, Muhammad & Farooq, Muhammad & Zulfiqar, Usman & Hussain, Saddam & Akbar, Nadeem & Nawaz, Ahmad & Anjum, Shakeel Ahmad, 2020. "Alternate wetting and drying: A water-saving and ecofriendly rice production system," Agricultural Water Management, Elsevier, vol. 241(C).
    5. Hafiz Muhammad Ali Raza & Muhammad Amjad Bashir & Abdur Rehim & Qurat-Ul-Ain Raza & Kashif Ali Khan & Muhammad Aon & Muhammad Ijaz & Shafeeq Ur Rahman & Fiaz Ahmad & Yucong Geng, 2021. "Effect of K and Zn Application on Biometric and Physiological Parameters of Different Maize Genotypes," Sustainability, MDPI, vol. 13(23), pages 1-17, December.
    6. Hassan Sh. Hamad & Eman M. Bleih & Elsayed E. Gewaily & Khadiga Alharbi & Medhat Rehan, 2023. "The Potential Effects of Kinetin Implementation on Hybrid Rice Seed Production under Water Deficit," Sustainability, MDPI, vol. 15(7), pages 1-20, March.
    7. Qu, Zhaoming & Chen, Qi & Feng, Haojie & Hao, Miao & Niu, Guoliang & Liu, Yanli & Li, Chengliang, 2022. "Interactive effect of irrigation and blend ratio of controlled release potassium chloride and potassium chloride on greenhouse tomato production in the Yellow River Basin of China," Agricultural Water Management, Elsevier, vol. 261(C).
    8. Ioannis E. Papadakis & Evangelia-Vasiliki Ladikou & Alexia Oikonomou & Theocharis Chatzistathis & Georgia Chatziperou, 2023. "Exploring the Impact of Potassium on Growth, Photosynthetic Performance, and Nutritional Status of Lemon Trees (cv. Adamopoulou ) Grafted onto Sour Orange and Volkamer Lemon Rootstocks," Sustainability, MDPI, vol. 15(22), pages 1-23, November.
    9. Darzi-Naftchali, Abdullah & Ritzema, Henk & Karandish, Fatemeh & Mokhtassi-Bidgoli, Ali & Ghasemi-Nasr, Mohammad, 2017. "Alternate wetting and drying for different subsurface drainage systems to improve paddy yield and water productivity in Iran," Agricultural Water Management, Elsevier, vol. 193(C), pages 221-231.

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