Gamma Irradiation Induced High Yield Mutant Genotype Samosir Local Shallot in the Third Generation

The gamma irradiation can promote the agronomic characters of plant. This study aims to obtain putative mutant genotype 3rd generation Samosir local shallot (M1V3), which highly yields. used augmented design in 8 genotypes from 2nd after (γ)-ray treatment were planted along with untreated. differences between plants and untreated tested by t-test: Similarity distance dendrogram analyzed using hierarchical cluster. results showed that almost all mean values made quantitative character changes M1V3 populations higher than those M1V2. expected high heritability value a broad coefficient genetic diversity was found fresh dried bulb’s weight resulted treated γ rays doses 3, 4 5 Gy. High also dry bulb 1 2 Gy moderate coefficients. Selection based on each population selection intensity 30 % obtained 39 highest index. number selected application γ-rays dose Gy, 10 genotypes. Therefore, at - M1V3-generation for still improve yielding through breeding archive national.
 HIGHLIGHTS
 
 low (1 Gy) increased growth yield shallots third generation
 ray plant length, tillers, bulbs, fresh- bulbs shallot
 38 mutants had greater compared control
 be as an effort increase character
 GRAPHICAL ABSTRACT