In recent years, use of the DNA-intercalating dye propidium monoazide (PMA) in real-time PCR has been reported as a novel method to detect viable bacteria in different types of samples, such as food, environmental, and microbiological samples. In this study, viable cells of Acidovorax citrulli, the causal agent of bacterial seedling blight and fruit blotch, were selectively detected and differe...

Transcriptional regulation of cold-responsive genes is crucial for exogenous melatonin-mediated cold tolerance in plants. Nonetheless, how melatonin regulates cold-responsive genes is largely unknown. In this study, we found that exogenous melatonin improved cold tolerance in watermelon by regulating expression of microRNAs (miRNAs). We identified a set of miRNAs that were regulated by melatoni...

Insecticides, fungicides, and foliar fertilizers are all used in the production of watermelon (Citrullus vulgaris L.) in Florida. In certain areas of the state, particularly in south Florida, pesticides are commonly applied at 5-7 day in tervals to maintain disease and insect control. Growers with large acreages combine insecticides and fungicides so that both can be applied at the required sho...

Watermelon chlorotic stunt virus (WmCSV) is a bipartite begomovirus (genus Begomovirus, family Geminiviridae) that causes economic losses to cucurbits, particularly watermelon, across the Middle East and North Africa. Recently squash (Cucurbita moschata) grown in an experimental field in Oman was found to display symptoms such as leaf curling, yellowing and stunting, typical of a begomovirus in...

Several species from the Cucurbitaceae family including muskmelon, watermelon, cucumber, pumpkin, and squash were used to evaluate their tolerance in a laboratory test to two herbicides (Stomp and Acetochlor) widely used in crop cultivation. The effects of concentration and site of herbicide action on the length of primary roots and hypocotyls as well as seedling fresh weight were studied. The ...

A watermelon is a set of p Bernoulli paths starting and ending at the same ordinate, that do not intersect. In this paper, we show the convergence in distribution of two sorts of watermelons (with or without wall condition) to processes which generalize the Brownian bridge and the Brownian excursion in Rp. These limit processes are defined by stochastic differential equations. The distributions...

1 Institute of Plant Protection, Chinese Academy of Agriculture Science, Beijing, 100094, China 2 Department of Plant Pathology, China Agricultural University, Beijing, 100193, China 3 Current address: Technical Centre of PAIQ, Shenzhen Entry-Exit Inspection & Quarantine Bureau, Guangdong 518001, P.R. China 4 USDA/ARS, Foreign Disease-Weed Science Research Unit, Ft. Detrick, MD, 21702, USA 5 Ca...

Abstrak. Budidaya tanaman semangka merupakan salah satu teknik budidaya pertanian yang dilakukan pada lahan berpasir. Tanaman dibudidayakan memerlukan berbagai perlakuan baik dari pengelolaan lahan, pemupukan, perawatan, pengendalian hama dan penyakit sampai Teknik pemanenan. Untuk menghasilkan kualitas sesuai kriterianya, diperlukan tindakan maksimal. Selain itu adanya survai atau pengelompoka...

Powdery mildew of cucurbits, incited by Podosphaera xanthii (Castagne) Braun & Shishkoff (syn. Sphaerotheca fuliginea auct. p.p.), is an economically important foliar disease. which is now common in watermelon [Citrullus lanatus (Thunb.) Mastum. & Nakai]. This disease occurs in all watermelon-growing areas and can reduce yields by up to 30%. Finding and breeding for resistance to this disease i...