THE SOMATIC CULTURE AND PLANTLETS REGENERATION FROM LONG-FIBRE COTTON MUTANT LINES COMPARISONS OF BIOMASS AND PHOTOSYNTHETIC ACTIVITY AMONG MUTANT LINES OF SPARTINA PATENS INDUCED BY LOW ENERGY HEAVY ION ANALYSIS OF ESTERASE ISOZYME AND SSR FOR MUTAGENIC PROGENIES INDUCED BY SPACE MUTATION IN MUSTARD EXTREMELY EARLY-RIPENING WHEAT MUTANT LINES BRED BY 1RRADITION