Genetic difference in adventitious rhizogenesis in <Emphasis Type="Italic">Albizia procera</Emphasis> Benth. with IBA treatment |
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| Authors: | Shamim Akhtar Ansari Sanjay Singh |
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| Institution: | (1) TFRI, P.O.-RFRC, Jabalpur, 482 021, India;(2) Institute of Forest Productivity, Aranyodaya, NH-23, Lalgutwa, Ranchi, 835 303, India |
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| Abstract: | Variable adventitious rhizogenesis of juvenile shoot cuttings was observed in seven half-sib families (TP-1, BAN-1, AN-3,
JR-3, SL-16, UM-3, and UM-5) of Albizia procera Benth. Treatment with IBA invariably promoted sprouting by 8%, adventitious rooting by 218%, root number by 869%, and root
length by 36.4% compared with the control. Interaction between families and IBA treatment significantly enhanced sprouting
and root length in BAN-1, JR-3, UM-3, and UM-5, and root number in all families, but had a significant suppressive effect
on sprouting in AN-3. Treatment with IBA increased family heritability (h
f
2) 1.38-fold for sprouting, 2.86-fold for adventitious rooting, and 10.86-fold for root number, but reduced family heritability
by a factor of 8.25 for root length. Thus, direct genetic effects seem to have strongly affected sprouting and adventitious
rooting, with IBA playing an auxiliary role, but had little effect on root number and length, for which IBA had a dominant
regulatory role. |
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| Keywords: | Family heritability Genetic effect Rooting Shoot cuttings |
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