The water retention curve (WRC) of arable soils from the southeastern United States at different levels compaction (no compaction, and 10 20% increases in soil bulk density) was estimated using van Genuchten–Mualem (VG) model. VG parameters noncompacted were obtained first by fitting measured hydraulic data. To construct WRC compacted soils, gravimetric values permanent wilting point (?gw, 1,50...

Serratia marcescens NJ01, a Gram-negative bacterium, can infect tomato leaves and cause chlorosis wilting. The present study evaluated the quorum sensing (QS) biofilm inhibitory effects of ...

With Contributions by L .Brown, W.H.Barry , D.Charlemagne, E. Erdmann, A . A . L.Fox, U.Fricke, W.H.van Gilst, T.Godfraind, K.Greeff, M.Heller , Κ.-Ο. Haustein, G. Isenberg, R.Jacob, T.Kazazoglou, D . K i m , K.Kochsiek, J .M.Koomen, W.Krawietz, M.Lazdunski, L.G.Lelievre, H.Lül lmann, P.Mansicr, E.Noack, D.Noble, D.Palm, Th.Peters, H.-H.Pri l lwitz , J.F.Renaud, B.Rossi, J . A . M . Schevers, T...

Our findings suggest that i) phytotoxic materials can be isolated from Bursaphelenchus xylophilus-infected Scots pine, but not from noninfected pines; ii) the phytotoxins cause wilting of 45-day-old and 2-year-old pine seedlings in a dose and species dependent manner; iii) the phytotoxins are produced early in the infection, accumulate or increase with time, and may function to suppress water t...

Water stress applied to the plant shoot through enhanced evaporative demands reduced cytokinin activity in extracts of xylem exudate and leaves. This reduction resembled the changes in cytokinin activity caused by water stress applied to the root. Cytokinin activity in detached wilting leaves decreased rapidly. Recovery took place after several hours in a humid chamber. Experiments with (14)C-k...

Severe root rot was observed in fields of cabbages (Brassica oleracea L.) in 2015 in China. Cardinal symptoms of this disease included root rot and wilting leaves. A fungus was isolated from diseased tissues consistently. Based on the morphological features and molecular analysis of the ITS-5.8S rDNA and D1/D2 domain of the 28S rRNA gene, it was identified as Plectosphaerella cucumerina. This i...

Wetting pattern geometry is useful in determining the spacing between emitters and irrigation time drip systems. This research aimed to generate an empirical model estimate width depth of wetting front surface based on experimental tests a cube-shaped container with transparent walls soils sandy clay loam texture, hydraulic conductivities from 2.316 3.945 cm h?1, organic matter contents 1.7 2.8...

Floriculture crops can lose their aesthetic quality due to water deficit during postproduction. Calcium is a secondary messenger in plant stress signaling, and the treatment of calcium has been proposed alleviate damage by various abiotic stresses. The objective this research was evaluate application methods delay wilting under deficiency three species bedding plants: viola (Viola cornuta), imp...