the selection of a growing medium is one of the most important decisions in the culture of hydroponic crops. in order to select a suitable medium for hydroponic cucumber (cucumis sativus l. cv. negin), an experiment was carried out on growing media containing different particle sizes of perlite and organic substrates in a run-to-waste system in a greenhouse experiment. the growing media tested ...

AIMS Considered as an essential measure in the application of soil seed bank (SSB) projects, the mixing of substrate and surface soil can effectively improve soil condition. This research is aimed at exploring the diversity characteristics of SSBs and the relationships between SSBs and soil properties. METHODS Canonical correspondence analysis (CCA) was adopted to describe the ordination of S...

Availability and uptake of heavy metals (Zn, Cu, Fe, Al, Cr, Ni) by mung bean grown on coal mine spoil was studied. The experiment was carried out as a pot culture experiment using garden soil and different proportion of coal mine spoil. The heavy metals were transported to roots then shoot and were found in traces in the fruits. No toxicity symptom was reported during vegetative as well as rep...

For new antifungal antibiotics from actinomycetes, a strain of Streptomyces GS 1322 was isolated from a sample of garden soil. The strain was found to possess antagonistic activity against four fungi i.e., Candida albicans, Aspergillus niger, Microsporum gypseum and Trichophyton sp. The strain was identified as Streptomyces sampsonii and the antifungal compound produced by it was found to be th...

This study determined the chilling injury interactions of sweet peppers with their hydroponic growth substrate. The treatments were cocopeat, perlite, and a mixture 50:50 cocopeat perlite (coco-perlite). fruits, when harvested, stored for 50 days using modified atmosphere package (MAP) at 5 °C. results revealed no significant between substrate indicators (respiration ethylene production rates, ...

Responses of soil respiration to elevated carbon dioxide and nitrogen addition in subtropical forest ecosystems in China Q. Deng, G. Zhou, J. Liu, S. Liu, H. Duan, and D. Zhang South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China Graduate University of Chinese Academy of Sciences, Beijing 100039, China Received: 16 June 2009 – Accepted: 7 August 2009 – Published: 2...

a Southern Global Change Program, USDA Forest Service, 920 Main Campus Dr., Venture II, Suite 300, Raleigh, NC 27606, USA b Southern China Botanical Garden, Chinese Academy of Sciences, Guangzhou, PR China c College of Soil and Water Conservation, Beijing Forestry University, Beijing, PR China d University of British Columbia-Okanagan, 3333 University Way, Kelowna, BC, Canada V1V 1V7 e Coweeta ...

Actinomycetes were isolated from eight samples of two different habitats, i.e., garden soil and cultivated field soil. Isolation of actinomycetes was carried out on soil extract agar medium using serial dilution method and forty seven isolates were obtained. All these actinomycetes were then assessed for their antifungal activity against two fungal pathogens i.e., Candida albicans and Aspergill...