Indian Journal of Agricultural Research
SCOPUSWeb of Science
  • Year: 2024
  • Volume: 58
  • Issue: 3

Growth Performance of Rice Genotypes at the Seedling Stage under Different Salinity Stresses

  • Author:
  • Ferdous Ikbal1,2,#, Y. Rafii1,3,#, Shairul Izan Ramlee3, Nazmin Yaapar3, Mirza Mofazzal Islam2, Rakiba Shultana4,#,*, Masud Rana4, Anisuzzaman1,5, Azadul Haque1,2
  • Total Page Count: 8
  • Page Number: 415 to 422

1Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia

2Bangladesh Institute of Nuclear Agriculture, BAU Campus, Mymensingh-2202, Bangladesh

3Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia

4Division of Agronomy, Bangladesh Rice Research Institute, Gazipur-1701, Bangladesh

5Division of Plant Breeding, Bangladesh Rice Research Institute, Gazipur-1701, Bangladesh

*Corresponding Author: Rakiba Shultana, Division of Agronomy, Bangladesh Rice Research Institute, Gazipur-1701, Bangladesh, Email: rakibabrri@gmail.com

#These authors contributed equally to this work as corresponding co-authors.

Online Published on 16 August, 2024.

Abstract

Worldwide coastal rice growing areas are severely affected by salinity which has become a major constraint to rice production. Salinity is a serious soil problem in rice-growing countries, severely limiting global rice production.

In this study, the seedlings of 21 rice genotypes were tested against seven different levels of salinity concentrations (0.3, 2, 4, 6, 8, 10 and 12 dSm-1) under a hydroponic system in a glasshouse condition at Field 10, Faculty of Agriculture, Universiti Putra Malaysia (UPM). Data on seedling growth and salinity injury of the tested rice genotypes were recorded.

The results showed that Pokkali, FL478 and Binadhan-10 were tolerant at 12 dSm-1; BRRI dhan73, BRRI dhan61, Binadhan-8, BRRI dhan67 and BRRI dhan47 were tolerant at 10 dSm-1; Putra-1 were moderately tolerant at 8 dSm-1 and MR263, MR284, MR211 and MRQ74 were tolerant at 4 dSm-1 and rest of the genotypes were salt susceptible. The lower amount of Na: K and Na: Ca were measured from rice genotypes, Pokkali and FL478 at maximum salinity levels. The promising rice genotypes that were tolerant at 12 dSm-1 would be taken into consideration for a hybridization program to develop a new salt-tolerant rice variety.

Keywords

Genotype, Na+/K+ ratio, Rice, Salinity, Seedling