A Study of Water Dynamics and Phenology in Plant Parts of ‘Eva’ Apple Trees Grown under Winter Conditions in Southern Brazil
Journal Title: Journal of Experimental Agriculture International - Year 2017, Vol 18, Issue 5
Abstract
Aims: The objective of this study was to evaluate water dynamics in different tissues of apple 'Eva' during dormancy stage under mild winter conditions of Pelotas, located in Southern Brazil. Study Design: Experimental design was completely randomized, with five replications, and the experimental unit was composed by a single plant, on 3x3x4 factorial arrangement, obtained from a combination of factors: three different tissues (bud, bark, and wood), three plant positions (apical, median and basal) and four collection dates each year (during the months of August and September). Place and Duration of Study: This research was carried out during two consecutive growing seasons: 2015/2016 and 2016/2017, in an experimental apple orchard located at Palma Agriculture Center, Federal University of Pelotas, Southern Brazil. Methodology: The study was conducted in an experimental orchard using young apple plants cultivar 'Eva'. Phenological data was obtained from four plants, of apical, median, and basal portions. The phenological stages adopted were 'C' (green tip), 'D' (half-inch green leafless), and 'F' (beginning of flowering). In order to determine water dynamics during dormancy stage and their fresh and dry weight, apple branches were collected and separated into three different tissues (bud, bark and wood) to evaluate water content. Results: During the first growing season, there was a higher percentage of bud bursting in apical and median plant portion, while in the second season it was larger in middle and basal portion. Bark showed greater water content in most evaluations, while bud had increased water content in middle portion at the end of the dormancy stage, coinciding with the larger bud bursting. Conclusion: Water content can be an indicator of overcoming endodormancy stage and bud bursting potential.
Authors and Affiliations
C. F. Barreto, E. S. Abreu, M. B. Moreno, R. M. Farias, R. R. Yamamoto, P. C. Mello-Farias, F. G. Herter, A. L. S. Chaves, C. S. P. Lamela
Keywords
Related Articles
- EP ID EP315382
- DOI 10.9734/JEAI/2017/37927
- Views 79
- Downloads 0
Efficacy of Organic Manures on the Productivity, Shelf-life and Economic Efficiency of Tomato Varieties in a Long-term Fertilized Field by Chemical Fertilizers
The study was undertaken to identify the effect of organic manures (OMs) on the productivity, shelf-life, and economic efficiency of tomato varieties for minimizing the continuous application of chemical fertilizers in B...
Genetic Diversity Analysis of Medicinal Plant Cassia alata in Andaman Island through ISSR Markers
Cassia alata is one of the important medicinal plants which are traditionally used to treat skin infections. It is also being used as antihelmintic, antibacterial, diuretic and laxative. The leaves of C. alata are used a...
Growth Response of Maize (Zea mays L.) to Different Rates of Nitrogen, Phosphorus and Farm Yard Manure in Morogoro Urban District, Tanzania
Pot experiments were carried out in the Teaching and Research Farm and in the green house of Soil Science Department, Faculty of Agriculture, Sokoine University of Agriculture, Morogoro Tanzania in 2014 and 2015 wet seas...
The Use of a Protein Enhanced Surfactant to Increase Yield of Alfalfa
Increasing human populations are creating challenges in food production and water management. Improving resource management with advances in technology is needed to meet these challenges. Swift Wet® is a protein enhanc...
In-vitro Evaluation of Some Fungicides against Botrydiplodia theobromae: Causal Pathogen of Pineapple Dieback
Aims: Dieback is an economically important disease known to cause major losses in food and tree crops. The causal pathogen of pineapple dieback was investigated and the efficacies of some fungicides were evaluated in-vit...