molecular weight ≥6000, PEG6000 molecules are inert, nonionic, and cell-impermeable. They are small enough to influence osmotic pressure, but large enough to avoid being absorbed by plants ( van den Berg and Zeng, 2006 ). Here, three kinds of rootstocks were
microbial degradation and water impermeability to the matrix of the cell walls ( Whetten et al., 1998 ). The outer peridermal cells of sweetpotato become partly lignified during growth and are progressively sloughed off. The phellogen layer, however, remains
impermeable double-layer paper bags for 128 d significantly synthesized an increased amount of anthocyanin compared with unbagged fruit. Sharma et al. (2013) reported that bagging apples with spunbonded and light yellow fabric bags significantly enhanced
in Table 1 and Fig. 1 . The experimental design and data collection methodology were similar to that of Expt. 1, except rows were covered with black semi-impermeable landscape fabric (Lumite, Baldwin, GA) and 2- or 3-gal plants were installed 6 May
on the bed top, and tillage was used to mix organic fertilizer with soil at a depth of 15 cm on 12 Oct. On the same day, the final raised beds were made and covered with 0.03 mm black TIF (totally impermeable film) plastic mulch (Intergro, Inc
thick, which accounted for 91.9% of the seed dry weight. The hardseededness and water-impermeability of the seed could be overcome by acid erosion. Seeds soaked in sulfuric acid for four days had 44.5% of its testa (by dry weight) removed. Physical
.g., overhead irrigated, impermeable surfaces, and gravel pads), relegating them to a “quasi-agriculture” status. A current example of this lack of understanding is the approval of only one BMP for voluntary compliance by nursery producers in the Chesapeake Bay
appears to favor enacting laws that embody the state researched BMPs. Most states, including Florida, have soil testing, following proper fertilizer rates, keeping nutrients from impermeable surfaces, and including controlled-release fertilizers as a
.H. Paul, R.N. Vaughn, K.C. Duke, S.O. 1983 Role of peroxidase in the development of water impermeable seed coats in Sida spinosa L Planta 157 224 232 10.1007/BF00405186 Elings, A. Kempkes, F.L.K. Kaarsemaker, R.C. Ruijs, M.N.A. Van de Braak, N.J. Dueck
Department of Horticulture, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061; 2 Eastern Shore Agriculture Research and Extension Center, Painter, VA 23420 Field studies were conducted to determine the effect of totally impermeable