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The article focuses on the classification of pernambuco in the list of endangered species, a move proposed by the Convention on International Trade in Endangered Species in Brazil, to address pernambuco's depletion due to deforestation. It states that the proposal was implemented by the International Pernambuco Conservation Initiative which aims to develop a sustainable trade, protection and renewal of pernambuco. Other issues related to penambuco are also investigated.

The article discusses the possible certification of artisanal olive grove to be organic in Le Marche, Italy. It cites that large production of olive may cause soil erosion and frequently chemical intensive. The farm does not use pesticides and permits customers to adopt an olive tree for a year. Almost $130 is to two liters of oil in autumn, three flavored oil in spring, adoption certificate and booklet about the adopted tree.

The article offers information on staking trees. According to the article, staking can prevent tree roots from being disturbed while the tree is becoming established. The article reports that top-heavy or more flexible trees require more support than others, while trees in windy locations may benefit from angled stakes. Instructions for staking and guying trees are included.

The article discusses research being done on the effects of trees on local weather. It references a study by Govindasamy Bala et al published in the April 2007 issue of the journal "Proceedings of the National Academy of Sciences." According to the study, a tree growing in the tropics is capable of cooling the planet, but the same tree when placed in the high altitudes contributes to global warming.

Presents a picture game concerning how a tree grows.

Provides information on the nature of pine cones. Trees that bear cones; Comparison of the growth of male and female cones; Process of maturation of different types of cones.

The article offers information on the growth rate of a tree that is indicated into actual growth through its growth rings in a given year.

The article offers information on several heat and drought-tolerant trees from the selection and breeding program of J. Frank Schmidt & Son Co. led by Keith Warren. It says that the company is always looking for trees that can evolve in extreme climates including dry, hot, and cold climates. Moreover, it presents the tree species which are said to be the future relief from heat and drought including Emerald Avenue hornbeam, Crimson Sunset maple, and Crimson Spire oak.

Reports on the development of disease-resistant trees by scientists at Horticultural Research International in Kent, England.

Reports on the study by California tree specialist John Haller on the ability of some hollow trees to replace tissue. Species that are able to recover from traumas that leave the main trunk of the tree hollow by growing roots through the cavity to the ground; Length of process; Tips to promote growth of adventitious roots.

The article provides several tips on how a person should care for a tree. Trees need nursing, coddling, and good environment like a piece of furniture. Recording important growth moments of a tree, including the first appearance of a leaf, bud, and flower after winter and measuring its girth and height after every monsoon, can be done.

The article reports on the expected effect of optimizing tree health during the 30 to 60-day period after bloom on yield potential. It cites the importance of avoiding any environmental or cultural stresses during the spring nut development. According to the article, there are foliar nutrient products on the market that contain formulations benefiting the tree if applied for a specific need.

The article offers step-by-step instructions for applying a soil drench to trees.

The article discusses the solar-powered machine called Recorder One designed by students Mischer and Thomas Traxler in Austria in 2008 that translates a tree's maturation process into a technology for making benches, lamp shades and containers. It is stated that the concentric rings of a tree reflects the tree's surroundings and that the duration and intensity of daylight determine the color and dimensions of the produced objects. The three-motor device is reportedly made of Plexiglas and electronic parts mounted on a steel armature.

The article focuses on the connections in wood and foliage which composed the networked systems formed by trees to capture energy, provide setting for human society and other activities. It notes that the survival of a tree depends on breaking and making the appropriate connections within the networks. It examines the importance of symplast connection among trees, the processes involve with this connection, and the breaks which took place on the connection.

El artículo presenta información sobre una especie forestal de la Amazonía Peruana, el Tornillo. Según el artículo, el dicho árbol tiene un valor grande en el mercado nacional e internacional. Se incluye detalles que acercan el mantenimiento, crecimiento y plantación del Tornillo.

The article discusses the disadvantages of staking and guying trees. The author mentions that the current trend in thinking is that staking impedes normal growth and is detrimental to tree health. She adds that staking and guying may also inhibit proper root development. She contends that a properly grown tree should be able to support itself without mechanical aid after planting.

The article offers information on the morphological structure of leaves in response to sun light exposure. It mentions that the appearance and behavior of a leaf varies when it is growing in exposed surfaces of tree crowns compared when it is developing in shade deep areas. It also mentions that the shade leaves do better in low light and sun leaves are more efficient under full light as a process of photosynthesis optimization to contribute to the growth of plants.

The article features the Acer japonicum "Vitifolium" of maple tree. It mentions that Acer (maple) has 125 species which are naturally disseminated around the world, but most originated in Asia, particularly in Japan. The leaves of the maple are deep green during growing season. However, during fall season the leaves shows colors scarlet, gold and crimson. Maple is a sturdy and strong tree but have few problems with pests. It functions well as a specimen tree in a focus of interest in landscape.

The article focuses on the cultivation of pecan trees, large deciduous tree which are native to the U.S. It states that most of the agricultural producers are growing pecans as an additional source of income. It provides the ways on how to grow pecan trees which notes on the most essential step in planting which is to dig a hole 8-10 inches in diameter and 18-20 inches deep. The next vital step is cutting and trimming the taproot and to water the tree thoroughly.

The article features the columnar tree black gum, scientifically known as Nyssa sylvatica which common in the eastern U.S. It is an angiosperm, dicot, and polygamodioecious which can grow at any soil types and growing conditions. The tree is propagated by seed which grows from 50 to 100 feet tall and about 15 to 20 feet wide. Black gum's fruit is a drupe which is consumed by many wildlife species.

The article features the mountain maple of Acer miyabei tree. Mountain maple is a native to northern Japan which belongs to the Platanoides group of maples. It mentions that it brings subtle beauty into the garden because it is uprightly oval, rich in foliage, deep green but changes into crisp yellow in the late fall. The height ranges from 25-50 feet. It also offers much potential and useful in tough applications for it is tolerant to heat, drought pollution, compacted soils and salt.

The article presents the production of color of trees during spring season. The process of color changing in trees provides several color combinations and intensities and occurs before the development of their physiological function as their buds develop into leaves, twigs, and flowers. Hardwood leaves initially possess red color and gradually changes into green brought by the production of chlorophyll. The immediacy in changing of colors depends on environmental factors such as the sufficient supply of light and warmth. Sandy Wilmot and her colleagues have worked on a system to observe and record flower and leaf bud development in hardwood forests. This has led to the conclusion that the red and sugar maple buds swell faster than yellow birch, American beech, and ash.

Provides tips on selecting trees for limited spaces. Approach for selecting small trees; Goal in choosing trees for confined areas; Factors considered in choosing trees for urban areas.