Мета. Охарактеризувати особливості розмноження, росту, розвитку й динаміки формування інтродукційної популяції раритетного степового виду, внесеного до Червоної книги України, Stipa capillata L. у розсаднику відділу природної флори Національного ботанічного саду імені М. Гришка НАН України (НБС) при агропідтримці та відсутності фітоценотичної конкуренції з іншими злаками. Методи. Дослідження пр...

Esparto grass (Stipa tenacissima), which is commonly found in the Mediterranean area, has a wide variety of uses. Five plaster workers from the same family developed cough, dyspnea, malaise, and fever after exposure to the esparto fiber used in their work for the previous few years. They showed a significant decrease in symptoms when away from work. Precipitating antibodies against an esparto e...

BACKGROUND AND AIMS Leaf longevity is an important plant functional trait that often varies with soil nitrogen supply. Ethylene is a classical plant hormone involved in the control of senescence and abscission, but its role in nitrogen-dependent leaf longevity is largely unknown. METHODS Pot and field experiments were performed to examine the effects of nitrogen addition on leaf longevity and...

The worldwide phenomenon of shrub encroachment in grass-dominated dryland ecosystems is commonly associated with desertification. Studies of the purported desertification effects associated with shrub encroachment are often restricted to relatively few study areas, and document a narrow range of possible impacts upon biota and ecosystem processes. We conducted a study in degraded Mediterranean ...