Influence of Specific Gravity Grading Using Floatation Technique on seed and Seedling Quality Characteristics in Amaranthus CV. PLR 1

Study was undergone to evaluate the efficacy of floatation grading on seeds Amaranthus Cv. PLR 1 using organic solvents in Department Seed Science and Technology, TNAU, Coimbatore during March 2023.The experiment laid out Completely Randomized Design with four replications each five treatments. We considered viz., Acetone, Methanol, Dichloromethane Petroleum Ether along water observed seed recovery percentage, germination root length, shoot length vigour index all The results showed that sinker fraction regardless solvent performed better than floater fraction. ability greater among assessed solvents. sinkers percent dichloromethane (93%) higher recovered by (63%). Also, recorded percent(77%) index(304) whose is 55% 272.This specific gravity can be adopted segregate well filled ill a lot Amaranthus. This method good substitute for sieve which requires skilled labour availability size properly seeds. So, this used as an alternate