abstract paclobutrazol is one of the most important triazolic compounds which are used as growth retardants in some crops. in this study, the effect of application methods and concentration of paclobutrazol on plant height of tuberose and possibility of pot production was investigated. in the first experiment, tuberose bulbs were soaked in 0, 25, 50, 75 and 100 mg.l-1 paclobutrazol for 10, 20 a...

Themajority of experiments in plant biology use plants grown in some kind of container or pot.We conducted a meta-analysis on 65 studies that analysed the effect of pot size on growth and underlying variables.On average, a doubling of the pot size increased biomass production by 43%. Further analysis of pot size effects on the underlying components of growth suggests that reduced growth in smal...

To investigate the effects of two cadmium-tolerant bacteria, Staphylococcus pasteuri (S. pasteuri X1) and Agrobacterium tumefaciens (A. tumefaciens X2), on cadmium uptake by the cadmium hyperaccumulator plant Beta vulgaris var. cicla L., a pot experiment with artificially contaminated soil was conducted. The results demonstrated that both cadmium-tolerant bacteria enhanced the dry weight of Bet...

Arbuscular mycorrhizal fungi (AMF) play a crucial role in enhancing the acquisition of immobile nutrients, particularly phosphorus. However, because nitrogen (N) is more mobile in the soil solution and easier to access by plants roots, the role of AMF in enhancing N acquisition is regarded as less important for host plants. Because AMF have a substantial N demand, competition for N between AMF ...

The aim of the current study was to describe the role and mechanism of Bacillus amyloliquefaciens Y1 against the root-knot nematode, Meloidogyne incognita, under in vitro and in vivo conditions. Initially, the exposure of the bacterial culture supernatant and crude extract of Y1 to M. incognita significantly inhibited the hatching of eggs and caused the mortality of second-stage juveniles (J2),...

A fine-textured, dwarf St. Augustinegrass (Stenotaphrum secundatum (Walt.) Kuntze) genotype, FX-313, was severely damaged in plots in the third year of evaluation in sandy soil in southern Florida. Damage was associated with numerous (> 40/100-cm(3) soil) sting nematodes, Belonolaimus longicaudatus Rau. Damage was ameliorated (P < 0.05) by fenamiphos applied broadcast at 2.2 g a.i./m(2), and B....

The interactive effects of CO2 elevation, N fertilization, and reduced irrigation regimes on fruit yield (FY) and quality in tomato (Solanum lycopersicum L.) were investigated in a split-root pot experiment. The plants were grown in two separate climate-controlled greenhouse cells at atmospheric [CO2] of 400 and 800 ppm, respectively. In each cell, the plants were fertilized at either 100 or 20...

Soybean cultivars varied in their response and tolerance to low initial Rotylenchulus reniforrnis populations of 10,000 nematodes/3.8 liters of soil, but a high initial population of 25,000 consistently reduced yields on resistant and susceptible cultivars by an average of 33.1%. At the 10,000 nematode inoculum level, dry seed yields of Hood decreased while those of Pickett increased significan...

An investigation was carried out with the heavy metal Cobalt and legume plant soybean, in order to test the heavy metal accumulating ability of soybean. Cobalt was given to Soybean (Glycine max) plants in pot culture by soil drenching method. The accumulation and uptake of cobalt was tested from root, stem and leaves of treated plants. The results showed higher concentration (Co level (100-200 ...

The short-day plants Begonia cheimantha, Chrysanthemum morifolium (one pot and one cut cultivar), Euphorbia pulcherrima (poinsettia) and Kalanchoe blossfeldiana were grown at vapour pressure de®cits (VPDs) of 155, 420 and 660 Pa (corresponding to 93, 81 and 70% relative air humidity, respectively). The lowest VPD delayed time to ̄owering by three to four days in pot and cut chrysanthemum but di...