Open AccessInfluence of water deficit on morphological, physiological and growth of Balsa (Ochroma pyramidale)
Author(s) -
PETER VERA,
Marcia Astorga-Eló,
Rolord Severe,
Laura Morante,
Jaime Morante,
JHON MONTENEGRO,
Kelly Dumorné
Publication year - 2020
Publication title -
romanian biotechnological letters
Language(s) - English
Resource type - Journals
eISSN - 2248-3942
pISSN - 1224-5984
DOI - 10.25083/rbl/25.6/2148.2155
Subject(s) - irrigation , biology , randomized block design , upgma , horticulture , water stress , shoot , botany , agronomy , biochemistry , genotype , gene
Water 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) were observed, while stomata length remained high (> 20 µm) 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.