In a young walnut orchard planted on black walnut rootstock, and stunted as a result of root lesion nematode feeding treatments are being applied in an effort to invigorate tree growth and/or significantly reduce the nematode population. Treatments began in 1989 and include: (1) Spring grafting two paradox seedlings to the existing trees trunk (llinarching")i(2) application of Nemacur 3 nematoc...

Seedlings of Betula pendula Roth were grown with their root systems separated between two soil compartments. Four treatments were imposed: (i) adequate irrigation in both compartments (WW, controls); (ii) adequate irrigation in one compartment and drought in the other compartment (WD); (iii) drought in both compartments (DD); and (iv) half of the root system severed and the remainder kept well-...

the effect of tricyclazole application on waterlogging damage alleviation in canola seedlings was evaluated in a pot experiment in complete randomized design layout with three replications. treatments included: control (no waterlogging), waterlogging, tricyclazole plus waterlogging and tricyclazole. tricyclazole (75%) applied at three-leaf stage on canola seedlings. seedlings were exposed to wa...

Root pruning during early root development can optimize the structure of woody plants. To determine effects on tree peony (Paeonia suffruticosa), seedlings cultivar ‘Fengdanbai’ were subjected to varying degrees or different styles pruning. Various indexes analyzed, including anatomical root, vitality, activity levels antioxidant enzymes, and contents endogenous hormones their ratios. Comprehen...

This study evaluated the use of splice grafting as a propagation strategy for watermelon. In experiment 1, treatments consisted sucrose, antitranspirant A, B, auxin (indole-3-butyric acid (IBA)) at two concentrations (10 and 20 mg·L−1), plus water control. The survival (%) splice-grafted watermelon plants differed due to number days after treatment (p < 0.0001, both). At 21 grafting, treated...

Herbaceous weed control (HWC) is prescribed for growing season control of vegetative competition in hardwood afforestation attempts on former agricultural areas. Without HWC, planted seedlings often exhibit poor growth and survival. While currently employed HWC methods are proven, there is a substantial void in research comparing HWC treatments spanning multiple years. A total of 4,320 bare-roo...

In the Republic of Korea, root pruning splice-grafting method is commonly used on watermelon (Citrullus lanatus) and cucumber (Cucumis sativus) seedlings to produce grafted plants. The growing medium an important factor for rooting a transplant. this study, we investigated shoot growth development in different media. ‘Shindong’ as scions were onto ‘Shingiwon’ bottle gourd (Lagenaria siceraria) ...

The most serious disease problem in fraser fir (Abies fraseri) Christmas tree production is phytophthora root rot (PRR). The efficacies of six fungicide treatments in preventing PRR incited by Phytophthora cactorum and P. drechsleri in 2-year-old fraser fir seedlings were evaluated in 2010 and 2011 in central Pennsylvania. The study examined five fungicide drench treatments [dimethomorph, foset...

Ethylene is a plant hormone that plays a major role in the elongation of both exploratory and root hair systems. Here, we demonstrate in Brassica napus seedlings that treatments with the ethylene precursor, aminocyclopropane carboxylic acid (ACC) and the ethylene biosynthesis inhibitor, aminoethoxyvinylglycine (AVG), cause modification of the dynamic processes of primary root and root hair elon...

the study was conducted to evaluate the effect of seed priming on root growth of two barley cultivars (hordeum vulgare l.) under salinity stress was performed in phytogel. the treatments included two cultivars of barely (yusuf and maquie), levels of seed priming (control, hydro-priming and priming with 4.35 g l-1 of urea) and four levels of nacl salinity stress (0, 0.2, 0.3 m). the experiment w...