@article{bartley iii_yap_jackson_fonteno_boyette_chaves-cordoba_2023, title={Quantifying the Sorptive Behavior of Traditional Horticultural Substrate Components Based on Initial Hydraulic Conditioning}, volume={58}, ISSN={["2327-9834"]}, DOI={10.21273/HORTSCI16698-22}, abstractNote={The ability of a substrate component (organic or inorganic) to capture and retain water (hydration and wettability) is important to investigate and promote water-use–efficient practices. Many factors may play a role in the wettability of the material, including the processing of the material and its initial handling. The goal of this experiment was to determine the effect of moisture content (MC) on the sorptive behavior of substrates after an initial and secondary hydration cycle. Coir, peat, and aged pine bark were evaluated at a 33%, 50%, and 66% MC by weight. At all moisture levels, coir and bark were minimally affected by MC or the initial hydration cycle. Peat was the most vulnerable to changes in sorptive behavior as a result of wetting and drying cycles. After a wetting and drying cycle, the maximum volumetric water content of peat from surface irrigation was reduced 21.5% (volumetrically), more than three times any other treatment. The hydration efficiency of peat was improved when blended with as little as 15% coir. These experiments provide evidence that MC and initial handling of the substrate can lead to differences in initial water use efficiency.}, number={1}, journal={HORTSCIENCE}, author={Bartley III, Paul C. and Yap, Ted C. and Jackson, Brian E. and Fonteno, William C. and Boyette, Michael D. and Chaves-Cordoba, Bernardo}, year={2023}, month={Jan}, pages={79–83} }
 @inproceedings{yap_jackson_fonteno_2015, title={Water retention of processed pine wood and pine bark and their particle size fractions ?}, volume={1085}, DOI={10.17660/actahortic.2015.1085.95}, booktitle={Proceedings of the 2014 annual meeting of the international plant propagators society}, author={Yap, T. C. and Jackson, Brian and Fonteno, W. C.}, year={2015}, pages={467–471} }
 @article{judd_jackson_yap_fonteno_2014, title={Mini-horhizotron: An apparatus for observing and measuring root growth of container-grown plant material in situ}, volume={49}, number={11}, journal={HortScience}, author={Judd, L. A. and Jackson, B. E. and Yap, T. C. and Fonteno, W. C.}, year={2014}, pages={1424–1431} }
 @inproceedings{yap_jackson_2013, title={Root growth of horticultural crops as influenced by pine bark age, wood, and sand amendment (c)}, volume={1014}, DOI={10.17660/actahortic.2013.1014.98}, abstractNote={INTRODUCTION When plants are produced in containers their roots are restricted to a small volume; consequently the demands made on the substrate for water, air, nutrients, and support are more intense that those made by plants grown in a field production situation where unrestricted root growth can occur (Bunt, 1988). Vigorous root systems are essential for growth and development of healthy plants. A healthy, functioning root system increases the surface area available for the uptake of water and mineral elements. It is also important to appreciate the fact that root system development, mass and architecture also is critical in providing support, storage and anchorage needed by plants (Jackson et al., 2005; Waisel et al., 2002; Wraith and Wright, 1998). Often excluded from horticultural research, root growth and root system architecture are important factors influencing plant performance and survival (Wright and Wright, 2004). Understanding root growth and development is important to improving plant quality and production success. The capability to observe and measure roots as they grow into a substrate is very useful in determining root growth preference in various substrates. New root measurement techniques have been designed and introduced in recent years which aid in understanding and qualifying root growth of horticultural crops grown in containers (Wright and Wright, 2004; Silva and Beeson, 2011). Pine bark has been the traditional substrate used for the production of nursery crops grown in containers since the 1970s. Both fresh pine bark and aged pine bark have been utilized by growers and analyzed by researchers to determine the best management practices for growing nursery crops (Cobb and Keever, 1984; Harrelson et al., 2004). It is typical that sand is added as an amendment to pine bark for the purpose of adding weight to the container (helps prevent pots from blowing over). Recently, the use/amendment of pine tree substrates (freshly processed loblolly pine wood; PTS) to pine bark has become a trend for some growers and the focus of several researchers (Jackson et al., 2010; Murphy et al., 2010). The effect that these substrate amendments and pine bark age have on root growth in containers is not well known, understood or documented.}, booktitle={Proceedings of the international plant propagators' society}, author={Yap, T. C. and Jackson, Brian}, year={2013}, pages={443–446} }