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Variations in Root Morphology and Yield among Rice Varieties in Response to Potassium under Subtropical Conditions

Author

Listed:
  • Md. Salahuddin Kaysar

    (Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh)

  • Uttam Kumer Sarker

    (Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh)

  • Sirajam Monira

    (Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh)

  • Md. Alamgir Hossain

    (Department of Crop Botany, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh)

  • Uzzal Somaddar

    (Department of Agronomy, Patuakhali Science and Technology University, Dumki, Patuakhali 8602, Bangladesh)

  • Gopal Saha

    (Department of Agronomy, Patuakhali Science and Technology University, Dumki, Patuakhali 8602, Bangladesh)

  • Apurbo Kumar Chaki

    (On Farm Research Division, Bangladesh Agricultural Research Institute, Gazipur 1701, Bangladesh
    School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD 4072, Australia)

  • Abeer Hashem

    (Botany and Microbiology Department, College of Science, King Saud University, P.O. Box. 2460, Riyadh 11451, Saudi Arabia)

  • Elsayed Fathi Abd_Allah

    (Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box. 2460, Riyadh 11451, Saudi Arabia)

  • Md. Romij Uddin

    (Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh)

Abstract

The relationship between rice root morphology and Potassium (K) is a major concern for its growth and development, and it has a substantial impact on yield as well. In light of this, the current pot research was run in the net house of the Department of Agronomy at the Bangladesh Agricultural University, Mymensingh, Bangladesh, throughout the boro (dry season irrigated) season of 2020–2021. Binadhan-10, Hira-2 and BRRI dhan29 were grown with five K fertilizers: 0 kg K ha −1 (K 0 ), 32 kg K ha −1 (K 32 ), 65 kg K ha −1 (K 65 ), 98 kg K ha −1 (K 98 ) and 130 kg K ha −1 (K 130 ). Three replications of the investigation were conducted using a completely randomized design (CRD). The root number (RN), root length (RL), root volume (RV), root porosity (RP) along with leaf area index (LAI), total dry matter (TDM) and yield were assessed. Binadhan-10 with the K 65 treatment significantly increased the RN, RL, RV, LAI, TDM and yield. With the further increase in the dosage of K that was under K 98 and K 130 , the value of the root traits and yield did not increase. A positive connection was documented between the grain yield (GY) and all the root traits, excluding the RP. Binadhan-10 can be grown with 65 kg K ha −1 at field level for a satisfactory yield.

Suggested Citation

  • Md. Salahuddin Kaysar & Uttam Kumer Sarker & Sirajam Monira & Md. Alamgir Hossain & Uzzal Somaddar & Gopal Saha & Apurbo Kumar Chaki & Abeer Hashem & Elsayed Fathi Abd_Allah & Md. Romij Uddin, 2023. "Variations in Root Morphology and Yield among Rice Varieties in Response to Potassium under Subtropical Conditions," Sustainability, MDPI, vol. 15(11), pages 1-17, May.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:11:p:8589-:d:1155553
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