Rice requires nitrogen for the growth of plant vegetative organs. Potassium plays a role in regulating osmotic pressure and turgor plants, especially dry land. The purpose this study was to determine effect varieties potassium fertilization on yield upland rice. research conducted Bleberan Village, Kab. Gunungkidul continued at Laboratory Department Agricultural Cultivation, Faculty Agriculture...

A new 2-amino imidazole derivative, 5-(4-chlorophenyl)-N,1-di-o-tolyl-1H-imidazole-2-amine (3), has been synthesized using a green approach. The reaction was conducted in ChCl (cholinium chloride)/urea eutectic mixture, which is nature-inspired and environmentally friendly medium. proposed mechanism involves the preliminary regioselective alkylation of Nsp2 guanidine (2), followed by an intramo...

1 All teleost fish produce ammonia as a metabolic waste product. In embryos, ammonia 2 excretion is limited by the chorion and fish must detoxify ammonia by synthesizing urea via the 3 ornithine urea cycle (OUC). Although urea is produced by embryos and larvae, urea excretion 4 (Jurea) is typically low until yolk sac absorption, increasing thereafter. The aim of this study was 5 to determine th...

Effect of concentrated urea on JE virus was studied with a special view upon the structure of the virion. Urea concentration less than 2M acted reversibly to destroy the particles at 24 C in a wide range of pH between 7.2 and 10.0. At concentrations of urea higher than 3 M up to 8 M, the particles were disrupted irreversibly with a rapid loss of both infectivity and hemagglutinating activity. A...

Increased public awareness of the importance availability healthy agricultural products, including vegetables, must be supported by cultivation techniques and innovations. Cultivation mustard greens so far still relies on use inorganic fertilizers as an effort to increase crop productivity. The continuous excessive not only has a negative impact environment but also health due presence residues...

The regulation of ornithine delta-aminotransferase (OAT) expression is poorly characterized in humans, but in rat there are tissue-specific responses to nutritional and hormonal stimuli. We analyzed 1.3 kilobases of 5'-flanking sequence and part of intron 1 of the human OAT gene and found several candidate regulatory sequences including four copies of a motif also present in the promoters of th...

In the crystal structure of the title compound, C(17)H(17)ClN(4)O, the existence of only one 2-imino-oxo of the five possible N-amino-imino/O-keto-hydr-oxy tautomers is observed and the dihedral angle between the aromatic rings is 29.78 (11)°. The mol-ecular conformation is stabilized by intra-molecular C-H⋯N, N-H⋯O and C-H⋯O hydrogen bonds, in each case generating a six-membered ring. In the c...

In the title compound, C(11)H(16)N(2)O(4), the 2,5-dimeth-oxy-phenyl moiety is almost planar, with an r.m.s. deviation of 0.026 Å. The dihedral angle between the benzene ring and the plane of the urea moiety is 13.86 (5)°. The mol-ecular structure is stabilized by a short intra-molecular N-H⋯O hydrogen bond. In the crystal, inter-molecular N-H⋯O and O-H⋯O hydrogen bonds link the mol-ecules into...

Summer fruit drop (June drop) is one of the main reasons for low yield in some citrus varieties in northern Iran. Recognition of physiological changes in fruit abscission zone (calyx) and application of suitable treatments would reduce or control abscission. Hence, the changes of auxin, cellulose, and polygalacturonase in calyx of Thomson navel fruitlets were measured and their relations with a...

Elevation of the blood urea nitrogen following massive hemorrhage from the stomach and duodenum is a frequent occurrence (1). Its mechanism is not the same as that associated with high intestinal obstruction, as it occurs in the absence of any vomiting (2) (e.g. in the presence of melena alone4), and is associated with a normal or increased blood chloride concentration (3, 4, 5) and a normal ca...