Authors : B. S. Gaikwad and A.D. More
Page Nos : 130-132
Description :
Cowpea (Vigna unguiculata [L.] Walp.) is one of the most important pulse crops in India. Cowpea variety- Phule Pandhari (PCP-9708) was used for present research work. The seeds were treated with 0.050%, 0.075%, 0.10% and 0.125% concentration of EMS and gamma rays at doses of 20kR, 30kR, 40kR and 50kR and combination of EMS + gamma rays. Chemically, each chlorophyll molecule consists of porphyrin (tetrapyrol) and magnesium at the centre and a long chain hydrocarbon (phytyl) which is attached through a carboxylic acid group. Chlorophyll a and b occur in higher plants. In the present studies ten mutants like 1) Robust mutant 2) Branched mutant 3) Dark green mutant 4) Early flowering mutant 5) Late flowering mutant 6) Tall mutant 7) Dwarf mutant 8) Bold seeded mutant 9) Luxuriant mutant and 10) Divergently branched mutant of M4 generation induced through EMS, Gamma rays and Combination of both mutagens. Total chlorophyll content in morphological mutant of Cowpea was ranged from 1.16 mg/gm to 2.60 mg/gm.
Keywords: Cowpea, EMS, Gamma rays, chlorophyll, mutants.
