Technological properties and composition of volatile compounds in winter wheat malts grown with addition of seed meals into soil.

Wheat malts are necessary to produce wheat beers. In this study, wheat was grown with addition of seed meals into the soil, to determine whether such agricultural practice could improve the quality of the grain and, therefore, improve the quality of wheat malt produced from these grains. It was determined, that malt produced from the grains of the winter wheat cultivated with the use of seed meals is characterised with improved technological properties, such as saccharification time, filtration time and extract content and some of the seed meals had a positive impact on the content of various volatile compounds present in the produced malts.

Possibilities of Using Seed Meals in Control of Herbicide-Susceptible and -Resistant Biotypes of Rye Brome ( L.) in Winter Wheat.

Rye brome is a rare and nuisance weed in winter wheat canopies. In recent years, farmers have complained about the inadequate chemical control of this species. This study aimed to assess the effectiveness of seed meals obtained from allelopathic crops as an environmentally-friendly alternative for the control of herbicide-susceptible (S) and -resistant (R) rye brome biotypes in winter wheat.

[Persistent hyperplastic primary vitreous--diagnosis and differentiation].

Purpose: Presentation of the cases with a rare form of persistent hyperplastic primary vitreous.

Material And Methods: 5 children, aged 3-14, were referred to the clinic with suspicion of neoplasm changes or congenital anomalies of the eyeball. Unilateral, pathological lesions, in the form of opaque membranes, partially or totally covered the optic disc, were found.

[Serous macular detachment caused by congenital optic pit].

The observations concerning the treatment of 5 patients suffering from the serous macular detachment caused by the optic pit are presented. In all 5 cases, the laser photocoagulation along the temporal margin of disc was applied. The retinal attachment was obtained in 2 eyes.

[Laser photocoagulation as a completion of the surgical treatment of retinal detachment].

Among 600 operated retinal detachments in the last 5 years (1985-1989) there was no tight closure of the retinal hole after operation in 78. The causes were: the implant situated paracentrally to the hole, lack of contact between the implant and the hole, an insufficient scar, additional hole. Various types of the performed surgery were analyzed: the meridional or parallel implant, the balloon and endotamponade with the SF6 gas, executed with and without drainage of the subretinal fluid.

[Photocoagulation in selected cases of pathology of retinal vessels].

The authors presented methods and results of treatment by means of an argon laser of 12 patients with pathological changes of the retinal vessels. Diagnosed in these patients were: capillary haemangioma (Hippel-Lindau disease), teleangiectasis and macroaneurysms of the retinal vessels. Photocoagulation by argon laser of these vascular changes in these patients in right time showed to be a favourable therapeutic method, especially when the changes are localized in the posterior pole of the eye.

[Retinal detachment in the eyes with retinopathy of prematurity].

In the period of 1983-1988 among 57 retinal detachments in children and youth in 8 cases (10 eyes) the authors found the retinopathy of prematurity as a cause of retinal detachment. The characteristic picture of changes in these eyes was discussed. Combined surgical procedures were performed in 7 cases achieving a cure in 6.

[Proliferative vitreoretinopathy as a cause of early recurrence of retinal detachment].

Analysed were the results of surgical treatment, causes of the failure and early recurrence in 108 patients with retinal detachment in whom was performed an indentation of the sclera by means of a balloon (1st group--50) or by an episcleral implant (2d group--58). In the first group the apposition was achieved in 92 p.c.

[Vitreal and retinal changes in the fellow eye in children and adolescents with retinal detachment].

The authors examined 78 fellow eyes in patients aged 2.5-20 years treated for retinal detachment. The examinations were carried out in the course of the hospital treatment and 2-10 years after the discharge from the Ophthalmological Department.