Response of Dragon Fruit (Hylocereus sp.) Cuttings to Different Plant Growth Regulators.

Dilawar Singh and Amarjeet Kaur^*

Department of Horticulture, Khalsa College, Amritsar, Punjab, India.

Corresponding Author E-mail: dr.amarjitkaur30@gmail.com

DOI : http://dx.doi.org/10.12944/CARJ.12.1.27

Abstract:

Dragon fruit (Hylocereus sp.) is an exotic crop with a  great potential for its cultivation in semi arid tracts throughout India. Its planting is mainly confined to harsh climates and degraded lands facing challenges in its establishment. Hence, availability of quality planting material is essential for attaining success. Due to long juvenile phase of the sexually propagated seedlings it can be propagated asexually by stem cuttings but proper rooting is not possible without exogenous auxin application. Hence, during  2022-2023  a research  was carried out at the Horticultural Experimental area of Khalsa College, Amritsar  to standardize the concentration of plant growth regulators viz. IBA, NAA and PHB for rooting and success rate in stem cuttings comprising of sixteen treatments with three replications arranged in randomized block design. The results revealed that the stem cuttings treated with IBA 4000 ppm proved to be superior for the sprouting and survival of the cuttings resulting in the improved vegetative growth  with  profuse, longer, thicker and  the heaviest roots. Hence, the cutting treatment of IBA 4000 ppm can be proposed for dragon fruit plant propagation  to meet the market demand in India.

Keywords:

Auxin; Cuttings; Dragon fruit; Plant growth regulators; Sprouting; Survival

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