February 2013
Clean production technology of integrated pretreatment for Lignocellulose
Pretreatment is a key step for lignocellulose converting into universal raw material for industries as alternative of petroleum. This review discusses that single pretreatment lacks cost-competitiveness because only one product takes responsibility for all cost. Based on the inheterogeneity of lignocellulose and the advantages of steam explosion pretreatment, steam explosion integrated pretreatment is...
February 2013
Isolation, characterization and screening of Burkholderia caribensis of rice agro-ecosystems of South Assam, India
Six isolates of Burkholderia were obtained from rhizosphere soils of rice grown in tropical lowlands of South Assam, India. Among the identified Burkholderia isolates, SDSA-I10/1 has shown higher nitrogen fixing potential and it was selected for 16S rDNA sequencing. The isolate SDSA-I10/1 showed highest resemblance to Burkholderia caribensis MWAP84 (Y17011) and hence,...
February 2013
Irrigation with saline-sodic water: Effects on soil chemical-physical properties
The results of a two-year research, aimed at studying the effect of irrigation with saline and sodic water on soil physical and chemical properties, are reported. Bean and capsicum were grown in pots filled with two different clay-loam soils, irrigated with 9 types of water obtained from the factorial combination of three salt concentration levels (0.001 – 0.01 – 0.1 M for bean, and 0.01-0.032-...
February 2013
Preliminary studies on polyphenol oxidase activity in plantain (Musa paradisiaca) cultivars
Polyphenol oxidase (PPO) has been shown to be responsible for browning reactions and discolouration in many fruit and vegetable products. Crude polyphenol oxidase (PPO) of ripe and unripe plantain (Musa paradisiaca cultivars – Agbagba, Cardaba and plantain hybrid) was isolated and some of the characteristics of the PPO extracts investigated. The activity of the enzyme was evaluated using...
February 2013
Seedling vigour in wheat (Triticum aestivum L.) as a source of genetic variation and study of its correlation with yield and yield components
This experiment was aimed to study whether genetic variability exists in the seedling vigour of 50 elite spring wheat lines and also to study its correlation with yield and yield components. Analysis of variance reveals significant difference for seedling vigour index as well as other yield and yield components. The phenotypic coefficient of variation (PCV) and genotypic coefficient of variation (GCV) was...
February 2013
Spatial variability in the physico-chemical properties of soils affected by animal wastes in Uyo, Akwa Ibom State of Nigeria
Variability in the physico-chemical properties of soils affected by animal wastes in Uyo, Akwa- Ibom State, Nigeria was investigated in this study. A free survey technique guided field sampling. Five profile pits were dug on five studied sites namely: Site severely affected with poultry manure, site moderately affected with poultry manure, site severely affected with swine manure, site moderately affected...
February 2013
Effect of yellow mite, Polyphagotarsonemus latus (banks) density on hosts (Corchorus olitorius L.) phenology and assessment of yield loss under net house condition
The yellow mite, Polyphagotarsonemus latus Banks (Acari: Tarsonemidae) is one of the most serious pests of jute crop (Corchorus olitorius L.) in Bangladesh. Jute plants of tossa (C. olitorius) varieties were considered as treatments including, O-9897,O-72,OM-1 and O-795. The paired plot treatments (miticide treated and miticide untreated control) were laid out under net house condition. The...
February 2013
Distribution status and the impact of parthenium weed (Parthenium hysterophorus L.) at Gedeo Zone (Southern Ethiopia)
A study was conducted in Gedeo Zone, Southern Ethiopia to determine the impact and distribution status of Parthenium weed, Parthenium hysterophorus L. in the area. To collect data related with the impact of parthenium, 14 Peasant Association (PAs) were purposefully selected along the high way. A total of 140 quadrats (1 m2 area each) from 14 PAs were selected by using stratified random sampling...
February 2013
Effects of UV-B radiation and butylated hydroxyanisole(BHA) on the response of antioxidant defense systems in winter wheat (Triticum aestivum L.Yildirim) seedlings
Effects of UV and butylated hydroxanisol (BHA) on the activities of antioxidant enzymes were studied on the leaves of winter wheat cultivars (Triticum aestivum L. Yildirim). Fifteen days old wheat seedlings were treated with UV radiation (240 nm, 3 day) before they are treated with BHA (20°C). Supplementary UV-B radiation and UV-B+BHA significantly decreased chlorophyll and total phenol contents. The...
February 2013
Antagonistic potentiality of native rhizobacterial isolates against root rot disease of okra, incited by Rhizoctonia solani
Among seventy isolates, antagonistic twenty one representing biovars of Pseudomonas fluorescens (biovars I, II, III, and V) were collected from the rhizosphere of okra, chilli, ground nut, brinjal, cabbage and tomato from different agro-ecological regions of West Bengal and were subjected to evaluate for their antifungal activity under in vitro condition against Rhizoctonia solani,...
February 2013
Inheritance of various yield contributing traits in maize (Zea mays L.) at low moisture condition
Six maize inbred lines were selected on the basis of their overall performances in preliminary screening. They were subjected to complete diallel analysis for various physio-genetic parameters under water deficit conditions. There were highly significant (P<0.01) differences for all parameters, except leaf venation, among the inbred lines and their possible crosses. All traits showed additive gene action,...
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