National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Aluminium (Al) toxicity is the major limiting factor of crop production in acidic soils. Most of the soils in North eastern region are acidic. In order to improve the crop production in acidic soil conditions, screening genotypes which are tolerant to aluminium induced stress would be immense importance. Besides this finding the genotypes which are stable at different aluminium levels with high mean is equally important. The present investigation was aimed to identify stable promising genotypes with high seedling fresh and dry weights and to determine the environment which is highly influencing the genotypes. Twenty randomly selected local genotypes of rice were evaluated for at six concentrations of Al toxicity (25 µM, 50 µM, 75µM, 100µM, 125µM, 150µM) created by AlCl3 along with control (0µM) in Hoagland solution in plant growth chamber at department of Genetics and Plant breeding, Central agricultural University, Imphal, Manipur. Pooled analysis of variance (ANOVA) based on seedling fresh weight and dry weight was conducted to determine the effects of genotype, environment and their interactions (G×E). The performance of rice genotypes under different Al levels were assessed using AMMI analysis. Among the rice genotypes RCM-6 (G2), ChakaoPoireiton (G11), RCM-12 (G6), Tungou (G3), Keibiphou (G15), CAU-R1 (G20) were in general less affected by aluminium levels, while RCM-10 (G10), RCM-5 (G9) and Sangsangba (G1) were relatively sensitive to aluminium levels. As per AMMI 2 biplot Keibiphou (G15), ChakaoPoireiton (G11), Pat phou (G16) were near the origin hence those are stable genotypes.
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