Studies on Clonal Propagation of Guava through Cuttings
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Date
2021
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Dr.RPCAU, Pusa
Abstract
The present investigation entitled “Studies on Clonal Propagation of Guava through Cuttings” was carried out during 2020-21 in the Nursery Unit, Kitchen Garden, Department of Horticulture, Dr. Rajendra Prasad Central Agriculture University, Pusa, Samastipur (Bihar).
The experiment was laid out in two-factors Completely Randomized Design (CRD) with four types of potting media, viz., garden soil, Cocopeat: Perlite (1:1), Cocopeat: Vermiculite (1:1), Cocopeat: Perlite: Vermiculite (1:1:1) and two Plant Growth Regulators , viz., PBZ @ 200 ppm, PBZ @ 400 ppm, IBA @ 500 ppm and IBA @ 1000 ppm which were replicated three times.
The results of the investigation revealed that among the different potting media, Cocopeat : Perlite : Vermiculite (1:1:1) was most efficient in terms of shooting competency parameters, viz., number of days to bud sprouting, sprouting percentage, number of leaves per cutting, number of branch per cutting and shoot length and for rooting competency parameters, viz., days taken for root emergence, number of roots, root length, root fresh weight,root dry weight and survival percentage of cuttings. Among PGRs, IBA @ 1000 ppm proved to be the best for both shooting and rooting competency parameters. PBZ @ 400 ppm was found to be almost equally efficient for rooting competency parameters. The economic analysis showed that Cocopeat : Perlite : Vermiculite (1:1:1) gave maximum B:C ratio.