This investigation was undertaken to study the effect of boron on flower and fruit setting and yield of ratoon crop of brinjal (Solanum melongina L) in the Eastern Region of Sri Lanka. The treatments were arranged in a Randomized Complete Design (RCBD) replicated three times. The treatments were defined as follows: T1-50 ppm, T2-100 ppm; T3-150 ppm and T4Control along with recommended fertilize...

Persistence and efficacy of bifenthrin (25 and 50 g ai ha(-1)), fipronil (50 and 100 g ai ha(-1)) and indoxacarb (70 and 140 g ai ha(-1)) has been studied in okra fruits. The initial deposits varied from 0.259-0.382 microg g(-1) at low and 0.461-0.688 microg g(-1) at high rate of application. The residues persisted upto 10 days with half-life of 1.32-1.58 days for bifenthrin, 0.65-1.12 days for...

Brinjal (Solanum melongena L.) var. Mattu Gulla (MG) and var. Perampalli Gulla (PG) are unique varieties with distinct flavour cultivated in Udupi, Karnataka State, and are exposed to several biotic and abiotic stresses. An efficient and reproducible in vitro regeneration method is required to expedite the manipulation of these brinjal varieties to cope up with stress by tissue culture and gene...

A comparative study of polyphenol oxidase (PPO) from two varieties of brinjal (local long green-bili badnea and purple-gundu badne) was conducted to determine differences and similarities of some of the characteristics of the PPO enzymes in terms of temperature and pH optima, substrate specificity, thermal inactivation and potency of some PPO inhibitors. PPO was partially purified by ammonium s...

In the context of complex field problems compatibility of an efficacious insecticide with other agrochemicals normally used in the field is essential. In this view emamectin benzoate 5 SG 11 g a.i. ha -1 was tested with commonly used insecticide, fungicide and fertilizers. Studies were conducted in both laboratory (physical and phytotoxcity experiment) and field experiments (bio efficacy and ph...

BACKGROUND AND AIMS There is good evidence for deciduous trees that competition for carbohydrates from shoot growth accentuates early fruit abscission and reduces yield but the effect for evergreen trees is not well defined. Here, whole-tree tip-pruning at anthesis is used to examine the effect of post-pruning shoot development on fruit abscission in the evergreen subtropical tree macadamia (Ma...