EFFECT OF ROOTING MEDIA AND IBA TREATMENTS ON RHIZOGENESIS OF TERMINAL CUTTINGS IN GUAVA (Psidium guajava L.) cv. TAIWAN PINK
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Date
2017-08-18
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COLLEGE OF HORTICULTURE, VENKATARAMANNAGUDEM, WEST GODAVARI – 534 101 Dr. Y. S. R. HORTICULTURAL UNIVERSITY.
Abstract
The present work on "Effect of Rooting media and IBA treatments on
rhizogenesis of terminal cuttings in guava (Psidium guajava L.) cv. Taiwan
Pink″ was carried out during the period from September, 2016 to April, 2017
under the supervision of the Department of Fruit science, College of
Horticulture, Venkataramannagudem. This trial was conducted in a nearby mist
chamber available in a farmer’s nursery at Kadiyadda village, Tadepalligudem
mandal, West Godavari District, Andhra Pradesh with an objective of finding
out the best type of rooting media and best treatment of IBA for successful
propagation. The terminal cuttings were planted in three types of media viz.,
coco peat, vermiculite and saw dust and treated with IBA at six concentrations
i.e., 250 ppm, 500 ppm, 750 ppm, 1500 ppm, 3000 ppm and 6000 ppm. The
experiment was conducted in Factorial Completely Randomized Design with
the above two factors at unequal levels and replicated twice.
The study revealed significant differences among rooting media, IBA
treatments and their interactions for different root and shoot parameters. Among
the three rooting media, coco peat performed the best; among the six different
IBA treatments, the one at 3000 ppm powder dip method was found best;
whereas the combination of these two was observed to be superior among the
interactions in respect of different root and shoot parameters, except for days to
first sprouting of terminal cuttings, in which 750 ppm of IBA solution dip +
terminal cuttings planted in coco peat medium performed the best than the
other treatments of IBA.
The root parameters were significantly influenced by main treatment
factors as well as their interactions from 45 days after planting onwards. At 135
DAP, number of roots per cutting, length of the longest root per cutting, fresh
weight of roots per cutting and dry weight of roots per cutting were found to be at
maximum in those terminal cuttings planted in coco peat and treated with IBA
powder at the rate of 3000 ppm as well as their combination. Similar trend was
observed in case of shoot parameters also at 135 days as evident from the results
on number of shoots per cutting, length of longest shoot per cutting, number of
leaves per cutting, leaf area per cutting, fresh and dry weight of shoots per
cutting, root to shoot ratio (on dry weight basis), percentage mortality of rooted
cuttings during hardening process, survival percentage of terminal cuttings at 45
DAP and percentage establishment of rooted cuttings at 90 days after planting in
the main field.
From the present investigation, it can be concluded that the terminal
cuttings planted in coco peat and treated with IBA powder @ 3000 ppm gave
pronounced effect on root and shoot formation indicating its effectiveness for
Description
The objective of finding
out the best type of rooting media and best treatment of IBA for successful
propagation. The terminal cuttings were planted in three types of media viz.,
coco peat, vermiculite and saw dust and treated with IBA at six concentrations
i.e., 250 ppm, 500 ppm, 750 ppm, 1500 ppm, 3000 ppm and 6000 ppm. The
experiment was conducted in Factorial Completely Randomized Design with
the above two factors at unequal levels and replicated twice.
Keywords
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Citation
Department of Fruit science, College of Horticulture, Venkataramannagudem.