Palaniappa Krishnan

Learn More
Although less sensitive than mass spectrometry (MS), nuclear magnetic resonance (NMR) spectroscopy provides a powerful complementary technique for the identification and quantitative analysis of plant metabolites either in vivo or in tissue extracts. In one approach, metabolite fingerprinting, multivariate analysis of unassigned 1H NMR spectra is used to(More)
Wild germplasms are often the only significant sources of useful traits for crops, such as soybean, that have limited genetic variability. Before these germplasms can be effectively manipulated they must be characterized at the cytological and molecular levels. Modern soybean probably arose through an ancient allotetraploid event and subsequent(More)
Nitrate concentration in ground water is a major problem in specific agricultural areas. Using regression and neural networks, this study models nitrate concentration in ground water as a function of iron concentration in ground water, season and distance of the well from a poultry house. Results from both techniques are comparable and show that the(More)
In this study, mitochondrial genes 16S and cytochrome C oxidase I (COI) were used as taxonomic markers for the molecular analysis of selected fishes from the southwest coastal waters of India, viz., Sillago sihama (Forsskål, 1775), Mene maculata (Bloch & Schneider, 1801), Seriolina nigrofasciata (Ruppell, 1829), and Minous dempsterae (Eschmeyer, Hallacher &(More)
The objective of this research was to predict the nitrogen-loading rate to Delaware lakes and streams using regression analysis and neural networks. Both models relate nitrogen-loading rate to cropland, soil type and presence of broiler production. Dummy variables were used to represent soil type and the presence of broiler production at a watershed. Data(More)
Agricultural food production and consumption covers activities ranging from agriculture to food consumption. Pollution and food contamination related to the use of production technologies and processes, as well as from the use of products aimed at increasing agricultural yields and facilitating food conservation, have significant environmental consequences.(More)
  • 1