Indian Society of Genetics & Plant Breeding

Evaluation of three chemical hybridising agents on two varieties of broad beans (Vicia faba L.)

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Chemical hybridizing agents (CHAs) offer opportunity to
develop hybrids in crops where cytoplasmic, genetic male
sterile lines are not available. Keeping this in view, three
CHAs namely, benzotriazole, ethrel and surf excel
(synthetic detergent) of different concentrations at three
stages of development were tested on two genotypes of
broad beans (Vicia taba L.) ILB 1817 and ILB 4189. The
field trials were conducted following randomized block
design with three replicates during 2000 and 2001. Ethrel
at 0.1, 0.2 and 0.3% gave the best performance in inducing
100% male sterility lasting for 15-25 days in both the
varieties. On the othel' hand, three treatments of
benzotriazole at 0.5, 1.0 and 1.5% and three treatments
of surf excel at 1.0, 2.0 and 3.0% also induced 100%
male sterility lasting for 15-25 and 15-20 days respectively
and surf excel proved to be the least phytotoxic in both
the genotypes. The variously treated plants exhibiting
100% pollen sterility showed insignificant reduction in the
total yield in open pollinated plants

Keywords: Vicia taba, Chemical hybridizing agents (CHAs), male sterility, benzotriazole, ethrel. surf excel


Year: 2003
Volume: 63
Issue: 2
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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