Influence of water deficit on morphological, physiological and growth of Balsa (Ochroma pyramidale)

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dc.contributor.authorVera, Peter
dc.contributor.authorAstorga Elo, Marcia
dc.contributor.authorSevere, Rolord
dc.contributor.authorMorante, Laura
dc.contributor.authorMorante, Jaime
dc.contributor.authorMontenegro, Jhon
dc.contributor.authorDumorne, Kelly
dc.date2020
dc.date.accessioned2021-04-30T17:04:10Z
dc.date.available2021-04-30T17:04:10Z
dc.description.abstractWater is one of the main factors that influence the growth and development of plants. Balsa (Ochroma pyramidale) is a fast-growing tropical tree species with a great demand in the international market. The influence of soil, water deficit on morphological, physiological, and the growth of Balsa (Ochroma pyramidale) with and without irrigation was investigated. For this study, four random repetitions were carried out in a randomized complete block design. The plants were irrigated regularly with furrow irrigation. The timing of irrigation was based on the soil, water potential, according to treatment criteria. All pots were irrigated at 15, 30, 45, 60 and 75 days. Genomic DNA of O. Pyramidale was identified by ERIC-PCR and RAPD, while phylogenetic tree was determined using the UPGMA method. The results showed that leave number, shoot number, stem elongation and stem diameter were affected significantly (P<0.05) between the plant without irrigation compared to control (with irrigation) during the days of assessment. Regarding stomata number, no significant differences (P> 0.05) were observed, while stomata length remained high (> 20 mu m) and stomata diameter was decreased during evaluation days in plants without irrigation compared to control. DNA of eight plants isolated showed different band profiles. In conclusion, the parameters evaluated can be used as a measure of water stress, growers should be careful when using O. Pyramidale in both nursery and orchards where water scarcity is present.
dc.identifier.citationROMANIAN BIOTECHNOLOGICAL LETTERS,Vol.25,2148-2155,2020
dc.identifier.doi10.25083/rbl/25.6/2148.2155
dc.identifier.urihttp://repositoriodigital.uct.cl/handle/10925/3855
dc.language.isoen
dc.publisherARS DOCENDI
dc.sourceROMANIAN BIOTECHNOLOGICAL LETTERS
dc.subject.englishOchroma pyramidale
dc.subject.englishwater potential
dc.subject.englishdrought
dc.subject.englishgrowth
dc.titleInfluence of water deficit on morphological, physiological and growth of Balsa (Ochroma pyramidale)
dc.typeArticle
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