In the South African sugar industry, internal tissue of sugarcane stalks attacked by Eldana saccharina Walker (Lepidoptera: Pyralidae) often turns a red colour as a result of secondary infection by various organisms. In the factory, less sugar is extracted from these sections because sucrose is inverted to glucose. The length of stalk that is red thus provides an indication of the amount of sug...

Bioconversion of agricultural waste products to produce value-added fuels and chemicals offers potential economical, environmental and strategic advantages over traditional fossil-based products. The kinetics of acid hydrolysis of cellulose isolated from banana skin, cowpea shells, maize stalks and rice husk (agricultural waste) were studied at temperature ranging between 70 – 100C in a stirred...

fajr (ksc 260) is an early maturity grain maize hybrid that has been developed from a cross between two inbred lines (k1264/5-1×k615/1). this cross was carried out in 1998, for the first time. several characteristics of fajr hybrid were studied in different trials (preliminary, semi final, final and on-farm trails) over several locations during 1998 to 2005. the mean grain yield of the hybrid o...

Mitochondria were prepared from roots, stalks, leaves, and leaf veins of spinach. The mitochondrial preparations were examined for their ability to oxidize glycine via the respiratory chain. It is shown that the glycine-oxidizing capacity is restricted to photosynthetically active tissue. The activity is present in mitochondria from the green parts of the leaves, but not in mitochondria from ro...

The so-called Fe/Mn-oxidizing bacteria have long been recognized for their potential to form extracellular iron hydroxide or manganese oxide structures in aquatic environments. Bacterial species belonging to the genus Gallionella, one type of such bacteria, oxidize iron and produce uniquely twisted extracellular stalks consisting of iron oxide-encrusted inorganic/organic fibers. This paper desc...

Estimating species phylogeny from a single gene tree can be especially problematic for studies of species flocks in which diversification has been rapid. Here we compare a phylogenetic hypothesis derived from cytochrome b (cyt b) sequences with another based on amplified fragment length polymorphisms (AFLP) for 60 specimens of a monophyletic riverine species flock of mormyrid electric fishes co...

the sugarcane whitefly, n. andropogonis, sucks severely the sap of plant and produces a lot of honey-dew. this study was conducted to quantify the relationships between whitefly damage and sugar quality in order to estimate the monetary loss occurring at different levels of damage at harvest time. during this trial, the number of infected leaves was expressed as an index. the investigation was ...

This study reports effect of salinity on some growth attributes of two sugarcane cultivars at grand growth stage, in comparison with the control plants. In view of data presented here for different growth attributes, it is clear that responses of two varieties of sugarcane were different at different salinity levels. However, saline growth medium caused an overall reduction in growth in both th...

 The objective of this study was to assess fillet yield, proximate composition and mineral contents of the Indian spiny halibut (Psettodes erumei) during different seasons. Fish samples (female = 100 and male = 100) were caught from the coastal waters of Bushehr province and body weight and length were taken to predict fillet weight and yield. Large differences in the fillet yield were observed...

 The objective of this study was to assess fillet yield, proximate composition and mineral contents of the Indian spiny halibut (Psettodes erumei) during different seasons. Fish samples (female = 100 and male = 100) were caught from the coastal waters of Bushehr province and body weight and length were taken to predict fillet weight and yield. Large differences in the fillet yield were observed...