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In a recent publication entitled "Walnut in Kurdistan: Environmental Conditions and Walnut," authors Dalshad Azeez Darwesh and Pakhshan Maulood delve into the captivating world of the Juglans regia L. walnut tree, shedding light on its ecological prerequisites and valuable attributes.

The walnut tree, a member of the Juglandaceae family, holds a special position in the plant kingdom, with its genus, Juglans, encompassing twenty distinct species, all of which produce edible nuts. Beyond its culinary significance, the walnut tree is renowned for the exceptional quality of its wood. This timber is cherished by woodworkers for its beauty and durability. It is remarkably robust, resistant to pests, immune to cracking, and maintains its volume even when exposed to heat.

The authors discuss the environmental conditions that favour the growth of walnut trees, emphasising the importance of deep, fertile soils and a warm, temperate climate. An annual rainfall of more than 700 mm is considered sufficient for successful cultivation. Walnuts require cool winter and autumn weather to meet their chilling requirements, followed by a temperature range of 25-35 ºC in spring and summer to support normal growth and maturation.

However, it's not all straightforward when it comes to walnut trees. Despite their numerous health benefits, these trees emit various substances that can hinder seed germination and the growth of other plants. These substances have been found to act as bioherbicides, fungicides, bactericides, and even insecticides, affecting the ecosystem in intricate ways.

The book, originally published by LAP LAMBERT Academic Publishing on July 10, 2020, offers an in-depth exploration of these topics over 188 pages, providing valuable insights for botanists, horticulturists, and environmental enthusiasts.

For those seeking a comprehensive understanding of the Juglans regia L. walnut tree, its environmental prerequisites, and its impact on the ecosystem, "Walnut in Kurdistan: Environmental Conditions and Walnut" is a valuable resource, available in English in paperback format.