Ritchie, Gary A.
March 2009
American Rose;Mar/Apr2009, Vol. 40 Issue 2, p22
The article presents an analysis of winter injury on roses. Part I of the analysis on the way water in plants is organized is recalled along with Part II which explored what happened to the two pools of water when freezing occurs. Freezing injury on plants is discussed including the other mechanisms of plant cold injury, such as the production of free radicals and deep supercooling of water. Protection for roses in winter are provided particularly for varieties which lost their cold-harden ability.


Related Articles

  • Study on Extract Method of Flavonoids from Flowers of Nine Officinal Plants and Their Ability on Scavenging Hydroxyl Radicals. WU Dong-qing; AN Hong-gang; Qi Ya-e; XU Li; YANG Shuang // Natural Product Research & Development;Jun2008, Vol. 20 Issue 3, p514 

    Flavonoids from the flowers of nine officinal plants were extracted by means of a microwave assisted extraction technique, and their scavenging ability of ·OH free radical were studied. Their extracts showed various degrees capacities of scavenging the free radical of ·OH, and the...

  • Phytochemical Screening and Free Radical Scavenging Activities of the Fruits and Leaves of Allanblackia floribunda Oliv (Guttiferae). Ayoola, Gloria A.; Ipav, Solomon S.; Sofidiya, Margaret O.; Adepoju-Bello, Aderonke A.; Coker, Herbert A. B.; Odugbemi, Tolu O. // International Journal of Health Research;Jun2008, Vol. 1 Issue 2, p87 

    Purpose: To compare the phytochemical constituents in the leaves and fruits of Allanblackia floribunda and determine their free radical scavenging activity. Methods: The fruit and leaves of AF collected from the uncultivated farmlands of Okeigbo, Ondo State, Nigeria, were dried, milled and...

  • In vitro antioxidant properties of Rosa roxburghii aqueous extracts. Qi-Sen Xiang; Hai-Fang Xiao; Shi-Bo Gao; Meng-Tang Wen; Guo-Liang Jia; Xiao-Meng Ren; Xue-Bo Liu // Australian Journal of Crop Science;2012, Vol. 6 Issue 5, p854 

    Rosa roxburghii Tratt, is a wild plant of Southwest China, which has numerous beneficial actions against various diseases. However, whether R. roxburghii has antioxidant activity for free radicals-mediated biomolecules damage is still unknown. In the present study, the protective effect of...

  • Rose Parade. Edgar, Jolene // Women's Health;Mar2013, Vol. 10 Issue 2, p054 

    The article focuses on the beauty benefits of rose extracts. Dermatologist Joshua Zeichner notes that rose oil contains vitamin antioxidants and ultraviolet (UV)-absorbing flavonoids that protect the skin against free radicals as well as hydrate and boost the production of the structural protein...

  • Simulation of the initiated addition of hydrocarbon free radicals and hydrogen atoms to oxygen via a nonbranched chain mechanism. Silaev, M. M. // Theoretical Foundations of Chemical Engineering;Mar2008, Vol. 42 Issue 2, p227 

    A correction to the article "Simulation of the Initiated Addition of Hydrocarbon Free Radicals and Hydrogen Atoms to Oxygen via a Nonbranched Chain Mechanism" by M.M. Silaev that was published in the 2007 issue is presented.

  • “Simulation of the nonbranched-chain addition of saturated free radicals to alkenes and their derivatives yielding 1:1 adducts”. Silaev, M. M. // Theoretical Foundations of Chemical Engineering;Jul2007, Vol. 41 Issue 4, p454 

    A correction to the article "Simulation of the Nonbranched-Chain Addition of Saturated Free Radicals to Alkenes and Their Derivatives Yielding 1 : 1 Adducts" that was published in a previous issue of the periodical is presented.

  • The cardioprotective and mitochondrial depolarising properties of exogenous nitric oxide in mouse heart Bell, Robert M.; Maddock, Helen L.; Yellon, Derek M. // Cardiovascular Research;Feb2003, Vol. 57 Issue 2, p405 

    Objective: Nitric oxide (NO) is reported to be both protective and detrimental in models of myocardial ischaemia/reperfusion injury, which may be concentration dependent. Our objective was to characterise this dichotomy using the nitric oxide donor, S-nitroso N-acetyl penicillamine (SNAP)...

  • Vitamin E inhibits lipid peroxidation-induced adhesion molecule expression in endothelial cells and decreases soluble cell adhesion molecules in healthy subjects van Dam, Bastiaan; van Hinsbergh, Victor W.M.; Stehouwer, Coen D.A.; Versteilen, Amanda; Dekker, Henk; Buytenhek, Rien; Princen, Hans M.; Schalkwijk, Casper G. // Cardiovascular Research;Feb2003, Vol. 57 Issue 2, p563 

    Objective: In a combination of in vivo and in vitro studies, we investigated mechanisms via which α-tocopherol, a lipid soluble form of vitamin E, can directly affect endothelial activation as induced by H2O2 and TNFα. Methods: We measured effects of α-tocopherol on...

  • Are free rads eating you alive? Ostgarden, Jo // Bicycling;Feb1994, Vol. 35 Issue 2, p74 

    Furnishes information on how to elude `free radical' cells, which have been blamed for everything from sore muscles to cancer. Nutritionist Sonja Connor's explanation of what free rads are; How antioxidants deactivate or trap some free radicals; Which riders may need more antioxidants; How to...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics