Spray application of abamectin (CHA 2062) was given twice to brinjal crop at 15 days interval at the recommended dose and double the recommended dose of 14.4 and 28.8 g a.i./ha during December, 2007March, 2008 to study its residue persistence. Initial residues of abamectin on brinjal from the two treatments were 0.202 and 0.815 mg/ kg, respectively. The residues persisted for 3 days from both t...

Plant growth promoting rhizobacteria (PGPR) are beneficial rhizobacteria which enhance plant growth as well as the productivity by a variety of mechanisms PGPR were isolated from the rhizosphere region of som plants (Machilus bombycina King) maintained at the Central Muga Eri Research and Training Institute, Lahdoigarh, Jorhat. A bacterial based bioformulation was prepared and sprayed over the ...

The aim of this study was to evaluate the coffee germplasm of the Paraná Agronomic Institute (IAPAR) for resistance to the coffee-berry-borer. Preliminary field evaluation was performed in August 2004 and the fruits of less damaged genotypes in the field were evaluated under controlled condition with obligated and free choice experiments established in a randomized complete design with three re...

Shi, Biying. M.S., Purdue University, May 2015. Growth Parameters for 'Golden Delicious' Apple Trees (Malus × domestica Borkh.). Major Professor: Peter Hirst. High yield and high quality of tree fruit result from appropriate orchard design and management practices. This requires an accurate knowledge of vegetative growth, branching, and flowering processes of fruit trees. Tree development knowl...

Girdling effects on fruitlet abscission, leaf chlorophyll, chlorophyll a fluorescence and carbohydrate concentration in various flowering and vegetative shoots were studied during natural fruit drop in two Citrus cultivars. Irrespective of shoot type, girdling delayed fruitlet abscission, but only fruitlets borne on leafy shoots had increased final fruit set. Chlorophyll a fluorescence analysis...

The CLAVATA1 (CLV1), CLV2, and CORYNE (CRN) receptors in Arabidopsis thaliana maintain cell proliferation in shoot apical meristems by restricting expression of the transcription factor WUSCHEL (WUS). Previously characterized receptor mutants generate extra fruit and floral organs that are proposed to arise from enlarged floral meristems (FMs). We identified new alleles in clv1, clv2, and crn a...

Irrational applications of insecticides on vegetable crops are very common in Bangladesh, resulting harmful consequences for the environment and human health. Therefore, a study was conducted to evaluate efficacy biological botanical okra shoot fruit borer grown open fields. Four were used this study, namely Bacillus thuringiensis (Bt), Spinosad 45 SC, Abamectin 1.8 EC, Azadirachtin 1% EC an un...

An experiment was conducted in the laboratory and farm of the Department of Biotechnology, Gauhati University to explore the potentiality of an indigenous strain of Pseudomonas fluorescens as a bio-control agent in the management of bacterial wilt disease of brinjal under local conditions. Different organic materials were evaluated for their potential as substrate carriers in the formulation of...