Physical effects of soil drying on roots and crop growth

دانلود رایگان مقاله انگلیسی اصلی اثرات فیزیکی خشکاندن خاک بر روی ریشه ها و رشد محصولات کشاورزی چکیده: ماهیت و اثر فشارها بر روی رشد ریشه در محصولات کشاورزی در معرض خشک­سازی مورد مرور و بازبینی قرار میگیرد. خشکسازی فشار پیچیده ای است که بر روی رشد گیاه از نظر تعداد روشهای تعاملی تاثیر میگذارد. درپاسخ، تعدادی از روشهای وجود دارند که در آنها گیاه در حال رشد قادر به انطباق یافتن یا تسکین دادن این فشارها میباشد. این موضوع مطرح میشود که بارزترین فرصت برای پیشرفت در غلبه بر فشار خشکسالی و افزایش برداشت محصول کشاورزی درک و بررسی شرایط در خاک میباشد که در آنها شرایط ریشه های گیاه قادر به حداکثر رساندن استفاده آنها از منابع میباشند. این روند میتواند مستقیم نباشد، با فشارهای چندگانه که گاهی اوقات بر روی عملکردهای ریشه رقابت میکنند و شرایطی که بر روی ریشه ها و بسته به چیستی خاک، میزان عمق و مرحله رشد ریشه اثرات متفاوتی میگذارند. چندین فرآیند و تعامل بین این فرآیندها در خاک نادیده گرفته شده اند. دیدگاه ما این است که خشکسالی تنها یک فشار منفرد و ساده نیست و اینکه فعالیت کشاورزی که به دنبال ا ...

لینک منبع :Physical effects of soil drying on roots and crop growth

Physical effects of soil drying on roots and crop growth | Journal of ... https://academic.oup.com/jxb/article-abstract/60/10/2845/579639‎SimilarJul 1, 2009 ... The nature and effect of the stresses on root growth in crops subject to drying is reviewed. Drought is a complex stress, impacting on plant growth in a number of interacting ways. In response, there are a number of ways in which the growing plant is able to adapt to or alleviate these stresses. [PDF] Combined Soil Physical Stress of Soil Drying, Anaerobiosis and ... www.tandfonline.com/doi/pdf/10.1626/pps.10.451 Agricultural field soils often offer unfavorable physical environment to crop roots. ... The effect of soil drought (and/or short-term soil drying) stress on plant root growth has been examined extensively, but few studies addressed the associated soil mechanical stress. Images for Physical effects of soil drying on roots and crop growth [PDF] Soil conditions and plant growth - Wiley Online Library onlinelibrary.wiley.com/doi/10.1046/j.0016-8025.2001.00802.x/pdf‎SimilarSoil hardness. Hardness of soil strongly affects root growth. This hardness is usually expressed in terms of penetrometer resistance – the pressure required to push into ..... roots to extract water is in danger. Possibly this response reduces the risk of the plants lodging through uprooting. (Goodman & Ennos 1999). Soil drying. [PDF] Effect of soil acidity, soil strength and macropores on root growth ... onlinelibrary.wiley.com/doi/10.1111/j.1365-3040.2010.02254.x/pdf‎SimilarSoil acidity affects over half of the world's productive agricul- tural land. In acid soils, aluminium (Al) toxicity constrains root elongation and hence plant growth. .... critical point drying. The number of lateral roots along the main seminal root (> 1 cm) was counted and the distance from the root tip at which they were initiated ... Soil Conditions and Plant Growth - Google Books Result https://books.google.com/books?isbn=111833728X Peter J. Gregory, Stephen Nortcliff - ‎2012 - Science White, RG and Kirkegaard, J.A. (2010) The distribution and abundance of wheat roots in a dense, structured subsoil - implications for water uptake. Plant Cell and Environment, 33, 133-148. Whitmore, AP. and Whalley, WR (2009) Physical effects of soil drying on roots and crop growth. Journal of Experimental Botany, 60, ...Encyclopedia of Agrophysics - Google Books Result https://books.google.com/books?isbn=9048135842 Jan Gliński, Józef Horabik, Jerzy Lipiec - ‎2011 - Technology & Engineering In Figure 3, it can be seen that at matric potentials of around À80 kPa, which would normally be considered well watered for field-grown crops, penetrometer pressures in ... Mechanical resistance as a soil factor influencing the growth of roots and underground shoots. ... Physical effects of soil drying on roots and crop growth.Plant Physiological Ecology - Google Books Result https://books.google.com/books?isbn=0387783415 Hans Lambers, F Stuart Chapin III, Thijs L. Pons - ‎2008 - Science Soil drying in one container restricts leaf expansion and initiation, although the roots in the moist soil continue to maintain shoot water relations similar to those of control plants. Leaf growth recovers upon severing the roots in contact with the drying soil (Gowing et al. 1990). These effects on leaves of wheat seedlings and ...[PDF] THE EFFECT OF WIND ON PLANT GROWTH AND SOIL ... onlinelibrary.wiley.com/doi/10.1111/j.1469-8137.1965.tb05400.x/pdf‎SimilarThe argument that wind and soil moisture stress induce similar anatomical changes in plant leaves, and that these changes enhance the ability of the plant to restrain water loss, is examined. It is shown that the data presented by Whitehead (1963a) can be explained satisfactorily in terms of induced changes in root ... Plant Tolerance to Individual and Concurrent Stresses - Google Books Result https://books.google.com/books?isbn=8132237064 Muthappa Senthil-Kumar - ‎2017 - Science Understanding and exploiting the soil conditions in which the plant roots are able to maximise their resource use efficiency could have significant potential in overcoming drought and temperature stresses. A detailed review of the physical effects of soil drying on roots and crop growth was presented by Whitmore and ...