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Bandara Gajanayake, K. Raja Reddy, Mark W. Shankle, and Ramon A. Arancibia

become pigmented and begin to swell and finally develop into storage roots. Many efforts have been directed toward early identification of sweetpotato storage roots based on anatomical features. Accordingly, the development of anomalous cambia was

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Ute Albrecht, Mireia Bordas, Beth Lamb, Bo Meyering, and Kim D. Bowman

tissue culture ( C ). Adventitious roots shown in ( B ) and ( C ) were excised from the plant base. Discussion Despite the prevalence of micropropagation in many woody tree production systems, particularly forest trees, but also many fruit tree crops

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Tyler C. Hoskins, James S. Owen Jr., and Alex X. Niemiera

lead to improved production practices that maximize water application efficiency (i.e., substrate retention of applied water). An understanding of how water flows through a bark-based substrate also necessitates an investigation of the effect of root

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Haishan An, Feixiong Luo, Ting Wu, Yi Wang, Xuefeng Xu, Xinzhong Zhang, and Zhenhai Han

is root length density and RND is root number density. Fine root production and mortality. For each rhizo-pit, the RLD-based fine root production was calculated as the sum of the RLD of newly emerged roots, representing the gross increase in the RLD

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Xiang Wang, Ramón A. Arancibia, Jeffrey L. Main, Mark W. Shankle, and Don R. LaBonte

Sweetpotato [ Ipomoea batatas (L.) Lam.] is an important crop in developing countries and has many uses, ranging from consumption of fresh roots or leaves to processing into animal feed, starch, flour, candy, and alcohol. In the United States, it

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Xin Zhao, Qianqian Dong, Shubang Ni, Xiyong He, Hai Yue, Liang Tao, Yanli Nie, Caixian Tang, Fusuo Zhang, and Jianbo Shen

P. These species develop cluster roots and are adapted to low-P stresses associated with infertile soils ( Stephenson, 2005 ) through increasing root exudation of carboxylates, protons, and acid phosphatases in the rhizosphere, thus mobilizing

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James A. Schrader, Gowrishankar Srinivasan, David Grewell, Kenneth G. McCabe, and William R. Graves

An important obstacle to long-term sustainability in the container-crops industry is the nearly universal reliance on containers made from petroleum-based plastics. Although petroleum-plastic containers favor efficiency and profitability, their use

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Jennifer K. Boldt, James C. Locke, and James E. Altland

-available Si can be supplied through substrate components, substrate amendments, liquid fertilization, or foliar sprays. Silicon is absorbed by plants primarily via the roots through passive or active uptake ( Liang et al., 2006 ; Mitani and Ma, 2005 ). Plants

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Brandon M. Miller and William R. Graves

lateral roots and subsequently the likelihood of transplant success ( Schultz and Thompson, 1990 ). Some evidence suggests that increasing the number of lateral roots by removing parts of the taproot can result in an increase in tree height ( Woodroof and

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Bryan J. Peterson, Stephanie E. Burnett, and Olivia Sanchez

-free environment. A potential alternative to overhead mist is submist aeroponics, which relies on the application of mist from below the cutting, to the base of the stem inserted into an enclosed chamber. Several systems are available on the consumer market for use