Response of Young Apple Trees to Grass and Irrigation
- 1 October 2008
- journal article
- research article
- Published by Taylor & Francis Ltd in International Journal of Fruit Science
- Vol. 8 (1-2), 89-108
- https://doi.org/10.1080/15538360802367943
Abstract
Ground covers and irrigation are important components of orchard floor management systems that affect fruit tree vigor and productivity. Three experiments were conducted in a greenhouse to determine the relative water use of candidate ground covers (roughstalk bluegrass, RB, Poa trivialis), Chewing's fescue (CH, Festuca rubra subsp. commutata Gaudin), creeping red fescue (RF, Festuca rubra L. subsp. rubra), tall fescue (TF, Festuca arundinacea Schreber, Fawn), and perennial ryegrass (PR, Lolium perenne L., ‘Saint’) and the response of apple trees to those ground covers and to drip irrigation applied at two soilless substrate depths. Grass ground covers with large and deep root systems (TF and PR) used more water than a shallow- rooted grass (RB) and leaf water potential decreased more rapidly in apple trees grown with TF than RB when irrigation was withheld. Although apple tree shoot growth was greater with shallow- than deep-rooted grass, photosynthesis, transpiration, and root biomass distribution were not differentially affected by grass type. When grown with RB or TF, irrigation depth affected apple tree growth. During the first season in the greenhouse, deep irrigation at 37 cm depth increased apple root length density near emitters but shoot growth was less in apple grown with deep irrigation compared with apple grown with surface irrigation (0 cm) and with split irrigation at 0 and 37 cm. During the second season in the greenhouse, deep irrigation was beneficial to trees grown with grass that had large, deep root systems (TF) but it did not completely overcome interference effects of grass on apple trees, regardless of grass root system size or distribution. The results indicate that grasses with shallow root systems may be grown beneath apple trees and that split irrigation at two depths can provide flexibility that is necessary for water management of ground covers and apple trees.Keywords
This publication has 22 references indexed in Scilit:
- ARE FLOWERING PLANTS TABOO IN PEACH ORCHARDS?Acta Horticulturae, 2002
- Depth distribution of cherry (Prunus avium L.) tree roots as influenced by grass root competitionPlant and Soil, 2001
- Weed Control Increases Yield and Economic Returns from Young `Desirable' Pecan TreesJournal of the American Society for Horticultural Science, 1997
- Effect of apple orchard floor vegetation on density and dispersal of phytophagous and predaceous mites in UtahAgriculture, Ecosystems & Environment, 1994
- Soil Management Affects Shoot and Root Growth, Nutrient Availability, and Water Uptake of Young Peach TreesJournal of the American Society for Horticultural Science, 1991
- Effect of Orchard Weed Management on Catfacing Damage to Peaches in North CarolinaJournal of Economic Entomology, 1984
- Reservoirs of Tomato Ringspot Virus in Fruit OrchardsPlant Disease, 1982
- Influence of soil management practice on the orchard agro-ecosystemAgro-Ecosystems, 1980
- SOME EFFECTS OF ORCHARD SOIL MANAGEMENT ON THE MINERAL NUTRITION OF APPLE TREESPublished by Elsevier BV ,1980
- Role of Weeds in the Incidence of Virus DiseasesAnnual Review of Phytopathology, 1971