Aysun Pekşen

Using tea waste as a new casing material in mushroom (Agaricus bisporus (L.) Sing.) cultivation.

In this study, the possibility of using tea production waste as a new casing material in mushroom (Agaricus bisporus) cultivation was investigated. Some physical and chemical characteristics of tea waste, fermented tea waste and a mixture of tea waste with peat were compared with that of peat casing, as were their effects on yield. The highest yield was obtained from peat casing. Using tea production waste alone as a casing was not acceptable for assured yield when it was compared with peat. But, a mixture of tea production waste with peat in 1:1 (v:v) ratio increased the yield. There was no significant difference between the mushroom yields of tea production waste+peat and peat casing materials at the end of 30 and 40 days. High salt content, organic and inorganic compounds in casing materials caused reduction of yields. However, a high iron content in casing material gave a significant positive correlation with total yield at 40 days.

Lactarius pyrogalus’un değişik inokulum uygulamalarının fındıkta (Corylus avellana) bitki gelişimi üzerine etkileri

The purpose of this study is to determine the effects of vegetative and liquid inoculum applications of Lactarius pyrogalus, an ectomycorrhizal mushroom associated with hazelnut (Corylus avellana), on the growth of hazelnut seedlings. In the study, 7 different inoculum applications were examined and 5 seedlings were grown for each application. At the end of the cultivation period of 3 months, ectomycorrhizae formation and plant growth in the seedlings were evaluated. Ectomycorrhizal formation was observed in all inoculum applications, except for non-inoculated seedlings in the control application. Plant height, stem diameter, root length, root wet and dry weight, shoot wet and dry weight, total plant dry weight, root:shoot ratio, root and shoot dry matter content in seedlings belonging to different inoculum applications were determined. The effect of different inoculum applications on all other properties examined except for root:shoot ratio and shoot dry matter content was found statistically significant. When the plant growth parameters and mycorrhizal inoculation efficiency (MIE) were evaluated together, the best results were obtained from the application which was moistened with without sugar Modified Melin-Norkrans (MMN) nutrient medium and used vegetative inoculum. As a result, it was determined that inoculation made by using different inoculums of L. pyrogalus provided positive contributions to the growth of hazelnut seedlings.