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Propagation studies in aonla (Phyllanthus emblica L.)

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Title Propagation studies in aonla (Phyllanthus emblica L.)
 
Creator D.R.Govinda Nayaka
 
Contributor A.N.Mokashi
 
Subject Horticulture
 
Description Studies on seed germination, softwood grafting and micro propagation were carried at
Department of Horticulture, University of Agricultural Sciences, Dharwad during 2005-2006.
In seed germination studies, the seeds scarified with concentrated sulphuric acid for
30 seconds were found to be the best one with very high per cent germination (80.39), taking
least number of days for 50 per cent germination (12.27) and highest vigour index (1223).
Propagation studies revealed that, season of grafting had profound influence on graft
success. Maximum success per cent of 87.50 was recorded in November grafting followed by
66.69 per cent in case of December. Least success was recorded during June grafting
(16.52%). Influences of rootstock age on success of grafts were significant. The higher per
cent successful grafts (62.88) were observed in eight months old rootstocks followed by four
months (56.25%) old rootstocks.
In the studies on micro propagation, nodal segments from mature tree as explants
were used with use of growth regulators (Kinetin and GA3) at various concentrations for
shoot proliferation. MS medium supplement with Kinetin at 2.0 mg/l with GA3 0.5 mg/l
resulted in more number of shoots (3.28) and less number of days taken for bud initiation
(7.07). All the concentrations of IBA and NAA used individually for in vitro rooting of micro
shoots failed to induce rooting. However combination of IBA (2.0 mg/l) and NAA (2.0 mg/l)
has resulted in callus induction at cut end of in vitro shoots.
 
Date 2016-10-24T18:02:03Z
2016-10-24T18:02:03Z
2006
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/81625
 
Format application/pdf
 
Publisher UAS, Dharwad