The feasibility of using the bio-photonic imaging technique to assess symptoms of circular leaf spot (CLS) disease in Diospyros kaki (persimmon) leaf samples was investigated. Leaf samples were selected from persimmon plantations and were categorized into three groups: healthy leaf samples, infected leaf samples, and healthy-looking leaf samples from infected trees. Visually non-identifiable re...

Developmental scales for cereals describe apex and plant morphology separately. In order to link crucial steps of internal and external development, in three varieties of Hordeum vulgare spp. distichum L., sown in autumn and in spring, we recorded plant, leaf and apex stage, following the scales of Zadoks, Haun, and Banerjee and Wienhues, the number of primordia, culm and spike length, and the ...

The long-distance movement of cherry leaf roll virus (CLRV) in tobacco plants was studied using a tissue printing technique with non-isotopic RNA probes. Time-course analysis revealed that CLRV RNA accumulated in the inoculated leaf at an early stage, such as 20 h post-inoculation. The virus accumulation reached a peak at 8-10 days post-inoculation (d.p.i.) and then progressively decreased. The...

Leaf shape, including leaf size, leaf dissection index (LDI), and venation distribution, strongly impacts leaf physiology and the forces of momentum exerted on leaves or the canopy under windy conditions. Yet, little has been known about how leaf shape affects the morphological response of trees to wind load. We studied eight Quercus species, with different leaf shapes, to determine the morphol...

The disease attacks the plant in an early stage of growth, infecting the young tillers at ground level (Plate 1, B). Infected plants remain small in size and are characterized by the presence of abundant dry leaves and leaf sheaths. The infected stool displays symptoms of starvation and later it may collapse completely. During the initial stage of infection, leaf sheaths on the lower part of th...

High throughput assays have been developed to measure the ice nucleation activity of transgenic tobacco, Nicotiana tabacum L. cv. Petit Havana SR1 plants expressing the ice nucleation gene, inaZ, from Pseudomonas syringae at a young seedling stage, as well as in leaf tissue. Both assays are carried out in 96-well microtitre plates. The first assay involves direct seeding in vitro, one seed per ...

Nitrogen is a vital element in crops, and its management is a key measure to improve their yield and quality. Real-time monitoring of crop nitrogen content is needed to optimize products and crop production. In this paper we use chlorophyll fluorescence source to obtain pepper leaf image for machine vision and digital image processing and establish a greenhouse pepper leaf nitrogen content rapi...

OBJECTIVE To determine whether paper tape prevents foot blisters in multistage ultramarathon runners. DESIGN Multisite prospective randomized trial. SETTING The 2014 250-km (155-mile) 6-stage RacingThePlanet ultramarathons in Jordan, Gobi, Madagascar, and Atacama Deserts. PARTICIPANTS One hundred twenty-eight participants were enrolled: 19 (15%) from the Jordan, 35 (27%) from Gobi, 21 (16...

in order to study the effects of foliar application of naa and plant thinning on growth, yield and fruit quality of melon genotype khatooni, the experiment was conducted in a randomized complete block design with three replications at research field of faculty of agriculture, university of zanjan. treatments consisted of foliar application of naa at three levels (25, 50 and 100 mg.l-1 at 4-6 tr...

in order to evaluate the effect of some qualitative traits of sugar beet (beta vulgaris l.) under irrigation water quality and different types of fertilizers, a field experiment arranged as split plot in rcbd design with three replications at research station of shahrekord university in 2013. the main factor include irrigation with urban wastewater at 2-4 leaf stage, 8-12 leaf stage and irrigat...