Improvement in Gulabi by physical and chemical mutagens

摘要

Sprouting and survival percentages were inversely related with concentrations and duration of the treatment. Of 13 mutants survived, five mutants were even in maturity, two were significantly high yielding, all mutants had higher TSS than Gulabi, highest being in Gm-511. Most of the mutants were seeded though Gm-468 and 469 were partially seeded. Out of the 13 mutants, seven were moderately resistant to downy mildew, two to powdery mildew and four to anthracnose. Gm-466 appeared to be resistant to these three pathogens. On taking into account the evaluation among all the mutants, Gm-511, 487 and 507 appears to be very promising.