A Genotype-based testing for aluminium tolerance in the pea (Pisum sativum L.)

Abstract

Aluminium is detrimental for the growth of pea under acidic soil condition with poor growth and low yield. To enhance the production tolerant genotype is very important; therefore we aimed our study to screen pea genotypes for Al tolerance in acid soil. The screening of 25 pea genotypes was carried out in a naturally ventilated polyhouse with 3 levels of Al (control, 12 ppm and 24 ppm) and three replicated thrice. The screening was done using growth yield parameters. The growth and yield parameters were significantly reduced due to Al treatment in genotypes except in some. K-mean clustering was carried out to categorize genotypes into tolerant, intermediate and susceptible. Based on clustering at a higher level of Al (24 ppm), Kashi Samrath, Kashi Samridhi and EC‑9485 were classified as tolerant whereas Matar Ageta-7, Pb-89, AP-3, Lincoln, Arkel, Kashi Ageti, Kashi Shakti, VRPE-29, CHFGP-7, CHFGP-15 as susceptible genotypes.These genotypes

have potential to improve yield in acid soil affected regions of India and assist in further breeding of pea genotypes for Al tolerance.