Mutation Yields and types Obtained in Peanuts, A. hypogaea, by treating Mature Seeds with Ethyl Methane Sulphonate and Gamma-Rays, and Developing Embryos with Ethly Methane Sulphonate

Ashri, A. and Levy, A. (1974) Mutation Yields and types Obtained in Peanuts, A. hypogaea, by treating Mature Seeds with Ethyl Methane Sulphonate and Gamma-Rays, and Developing Embryos with Ethly Methane Sulphonate. In: Polyploidy and induced mutations in plant breeding. Panel Proceedings Series - International Atomic Energy Agency 82 . International Atomic Energy Agency, Vienna, pp. 1-12.

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Abstract

Mature seeds of three varieties were treated with 14 or 26 kR gamma rays or an 0.4% solution of ethylmethanesulphonate (EMS) for 24 h. In a fourth variety, EMS treatments of 0.4 and 0.6% (24 h) of developing embryos (DE) were compared with 0.4% (24 h) treatments of mature seeds (MS). In the first experiment gamma rays gave a higher mutation rate than EMS. In the 26 kR treatment, M1 germination was lower but the M2 mutation frequency was higher. In erect Congo and Dixie Anak, mutations for reduced plant size were most common, followed by chlorophyll mutations, while growth-habit mutations were less frequent. In trailing TBR(V4) all three MS treatments produced a high frequency of erect mutations, the highest rates being obtained with gamma rays. In the second experiment DE treatments with EMS in variety S9 gave more than twice the mutation rate of the MS treatments. In DE treatments, chlorophyll and reduced plant-size mutations were nearly equal in frequency, constituting about 85% of all mutations. In the MS treatments, chlorophyll mutations were more frequent than reduced plant-size mutations, together constituting 94% of the total mutations. Mutations affecting leaflets, which were five times more common in the DE treatments, accounted for most of the differences. There were differences between the DE and MS treatments also in the frequencies of albino, virescent and xantha mutants. Chimera size in the DE treatments was markedly larger

Item Type:	Book Section
Additional Information:	SNNigam collections
Author Affiliation:	Hebrew Univ., Fac. Agric., Rehovot, Israel.
Subjects:	Crop Improvement Plant Physiology and Biochemistry > Biochemistry
Divisions:	Groundnut
Depositing User:	Mr T L Gautham
Date Deposited:	28 Jul 2013 08:00
Last Modified:	28 Jul 2013 08:00
URI:	http://eprints.icrisat.ac.in/id/eprint/11265

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