Standardization of nursery techniques in melia azedarach l.
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UASD
Abstract
A trial was conducted at college of Forestry, Sirsi during 2012-13 to standardize the
nursery techniques in Melia azedarach L. Which is a multipurpose tree species. In first trial,
nine pre-sowing treatments were tried to know their effect in improving germination per cent.
In second trial, two levels of organic manures (FYM and vermicompost), four levels of biofertilizers
(no bio-fertilizer, Azospirillum, PSB and Azospirillum + PSB) and three levels of
inorganic fertilizers (no NPK, 0.5 g NPK and 1.0 g NPK) were evaluated to know their effect
on seedling growth of Melia azedarach.
Out of nine pre-sowing seed treatments tried, the maximum germination percentage
(84.0%) was recorded in 200 Molar KNO3 solution. The other quality indexes viz, mean daily
germination, peak value, germination value and germination rate of seeding were also
maximum in this treatment.
Among the organic manures tried, application of vermicompost has recorded
maximum seedling height, collar diameter, number of leaves, leaf area, root length, rootshoot
ratio, fresh shoot weight, fresh root weight, dry shoot weight, dry root weight, total
fresh weight and total dry weight. Among bio-fertilizers, application of Azospirillum + PSB
has recorded maximum seedling and root parameters. Among inorganic fertilizers,
application of 1.0 g NPK has recorded significantly highest seedling and root parameters.
Among the interactions of organic manures and bio-fertilizes, combination of
vermicompost + PSB has recorded maximum seedling height. The number of leaves, rootshoot
ratio, fresh root weight, total fresh weight and root dry weight were maximum in the
combination of FYM with Azospirillum + PSB. Among the interactions of organic manures
and inorganic fertilizers, all the parameters were found maximum in the combination of
vermicompost with 1.0 g NPK. Among the interactions of bio-fertilizers and inorganic
fertilizers, combination of PSB with 1.0 g NPK has recorded maximum seedling height,
collar diameter, fresh and dry root weight. The dry shoot weight and total dry weight were
maximum in Azospirillum + PSB with 1.0 g NPK combination. Among the interactions of
organic manures, bio-fertilizers and inorganic fertilizers, combination of vermicompost +
PSB + 1.0 g NPK has recorded maximum seedling height, leaf area, fresh root weight, dry
root weight and total fresh weight.
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