The relationship of 6-benzylaminopurine (BA)-induced fruitlet abscission to seed number and endogenous cytokinin levels in the fruit and leaves was examined in `McIntosh' apples (Malus domestica Borkh.). BA applied at the 10 mm stage of fruit development effectively thinned apple fruit and increased fruit size. The seed number of abscising fruit increased as BA concentrations increased. In pers...

By repeated selection of pigment portions of tissue the red callus induced from root seed­ lings of Penstemon serrulatus Menz. was chosen for suspension culture, which was maintained in Schenk and Hildebrandt medium supplemented with naphthaleneacetic acid (0.2 mg/1), 6-benzylaminopurine (2 mg/1) and sucrose (50 g/1). From the cultured cells eight phenolic compounds were isolated. They were ide...

The present study was undertaken to investigate the possibility for developing Efficient Plant regeneration protocol in Vigno mungo L. For this, the effect of Cytokinens on in vitro regeneration from Cotyledonary explants was studied in Black gram (Vigno mungo L.) Hepper Var Vamban-1. The cytokinins used were 6-benzylaminopurine (BAP), Thidiazuron (TDZ), and kinetin (Kn). The regenerated shoots...

The effects of differing cytokinin and auxin concentrations on resistance of tobacco (Nicotiana tabacum L.) tissue cultures to race 0 of Phytophthora parasitica var. nicotianae were examined. With 1 micromolar kinetin and either 11.5 micromolar indoleacetic acid or 1 micromolar 2,4-dichlorophen-oxyacetic acid, tissues from resistant cultivars exhibited a "hypersensitive" reaction to zoospores o...

The influence of growth regulators on the root induction of the Musa genus plants cultivated within in vitro conditions has been compared. The plant material used was the ‘Cavendish’ cultivar. Different concentratios of growth regulators (naphthaleneacetic acid, indole-3-acetic acid, 6-benzylaminopurine, 2.,4-dichlorophenoxyacetic acid) has been used and as control ones MS and half concentrated...

Somatic embryogenesis was induced in hypocotyl explants of geranium (Pelargonium x hortorum) cultured on media supplemented with various concentrations of N-phenyl-N'-1,2,3-thiadiazol-5-ylurea (thidiazuron). In less than 2 weeks, somatic embryos were observed in treatments containing levels of thidiazuron (TDZ) ranging from 0.2 to 1.0 micromolar. The use of N(6)-benzylaminopurine in combination...

Clonal micropropagation of plants is a modern popular method vegetative reproduction, which allows to obtain high-quality planting material in large volume short time. The research devoted the technology clonal rose Reine Sammut, particular, optimization nutrient medium composition. To increase efficiency micropropagation, silicon-containing preparation Siliplant was added composition according...