Vegetative Propagation of Papaya (Carica papaya L)

Anny, Jong (2007) Vegetative Propagation of Papaya (Carica papaya L). [Final Year Project Report] (Unpublished)

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Abstract

Papaya (C{[/"Ica papaya L.) is herbaceous perennial frUit crop of tropical and subtropica l countries. Majority of commercial papaya plantations prefer 100% hermaphrodIte papaya trees. Vegetative propagation of papa ya is the onl y method to produce papaya planting stock of the desired sex type . Papaya can be propagated clonally by graftIn g of selected scion s on eight months old trees. bH:ilm propagation IS another me thod of vegetallve propagation. Establishment of contamination-free cuhure lS the pre-requisite for I.n-\'ilro propagatIon . To reduce the level of con tamination. the shoot-tip explan ts should be taken from lhe newly sprouled or Oushed shools of prwled trees. Resull of th is siudy showed tha I high percentage of axenic cull ure from field·denved explanl could be achieved by subject the explant material to three rounds of spray wilh 3.75% neultralized phosphoric acidal weekl y Interval and followed by surface sterilization in 20% 'Clorox' for) 5 mlnutes, cultured on MS mecliunl incorporated With PPMnl at 3m IlL. For mductlOn of multiple shoot formation frOI11 the axenic shoot-tip explants, 0.25 mg/L of NAA and 0.5 mg/L of BAP were found to be effective. Furth ermore, MS medium was found to be more superior to the B5 medium in sequence uf shoot proliferation for seedling's shoot tips.

Item Type: Final Year Project Report
Additional Information: Project report (B.Sc.) -- Universiti Malaysia Sarawak, 2007.
Uncontrolled Keywords: Grafting, in-vilro propagatIOn , 'Clorox ' , PPM r". 0.25 mg/L NAA and 0.5 mg/L of BAP, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, undergraduate, , research, Universiti Malaysia Sarawak.
Subjects: Q Science > Q Science (General)
S Agriculture > SB Plant culture
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Gani
Date Deposited: 01 Jul 2019 07:04
Last Modified: 01 Jul 2019 07:04
URI: http://ir.unimas.my/id/eprint/25445

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