١ Physiology of carrot growth and development Introduction • Carrot (Daucus carota L. ssp. Sativus (Hoffm.) Schübl. & G. Martens) originates from the wild forms growing in Europe and southwestern Asia (Banga 1984). • The western type of cultivated carrot is thought to derive from the anthocyanin-containing forms found in Afghanistan. • The first cultivated carrot types were purple or violet; ye...

The host suitability of five zucchini and three cucumber genotypes to Meloidogyne incognita (MiPM26) and M. javanica (Mj05) was determined in pot experiments in a greenhouse. The number of egg masses (EM) did not differ among the genotypes of zucchini or cucumber, but the eggs/plant and reproduction factor (Rf) did slightly. M. incognita MiPM26 showed lower EM, eggs/plant, and Rf than M. javani...

The present study examines the radionuclides ( 40 K, 226 Ra and 210 Pb) concentrations in soil plants collected from El Jadida agricultural area. transfer factors of to different components (stems, roots, leaves, fruits) was also determined assessed. include various vegetable crops, including pumpkin, zucchini, beans, fennel, potato, sunflower, broccoli, onion, carrot, cabbage, tomato, mallow t...

Polybrominated diphenyl ethers (PBDEs) are potentially harmful and persistent environmental pollutants. Despite evidence that soils are a major sink for PBDEs, little is known regarding their behavior in this medium. An environmentally relevant level of a commercial penta-BDE mixture (75 microg kg(-1)) was added to topsoil, and the extractability of three congeners (BDE-47, -99, and -100) was m...

Vegetables are important for human health because they contain proteins, fibers, minerals, and vitamins. However, can be contaminated with enteric parasitic pathogens, this study aimed to investigate Parasitic contamination E.histolytica \E.dipar Ascaris lumbriciodes of fresh vegetable consumed after washing tap water collected randomly from farms in Brak al-Shati, Libya. Methodes:The focused o...

Carrot, a highly profitable crop in Israel, is severely damaged by Phelipanche aegyptiaca parasitism. Herbicides can effectively control the parasite and prevent damage, but for optimal results, knowledge about the soil-subsurface phenological stage of the parasite is essential. Parasitism dynamics models have been successfully developed for the parasites P. aegyptiaca, Orobanche cumana, and Or...

The present study investigates the effect of soil amended with sewage sludge on oxidative changes in zucchini and cucumber plants (Cucurbitaceae) and the consequent activation of their antioxidative systems and detoxification mechanisms. The plants were grown in pots containing soil amended with three concentrations of sewage sludge (1.8 g, 5.4 g and 10.8 g per pot), while controls were potted ...

We administered foliar applications of 50, 100, and 200 mg L-1 selenium (Se, selenite) on turnip (Brassica rapa var. rapa Linn.) and detected the changes in the main nutrient components in fleshy roots. Results showed that the foliar application of Se (IV) significantly increased the Se content in turnip, and Se (IV) positively affected the uptake of several mineral elements, including magnesiu...

Using an in situ phosphorylation assay with zucchini (Cucurbita pepo L. cv Dark Green) seedling tissue, we have identified numerous polypeptides that are capable of acting as protein kinases. Total protein preparations from different organs contain different kinase profiles, but all are within the range of 55 to 70 kD. At least four kinases are associated with highly purified plasma membranes f...