By J Levitt

Responses of crops to Environmental Stresses, moment version, quantity I: Chilling, Freezing, and hot temperature Stresses encompasses basically the entire environmental stresses which were intensively investigated. besides the fact that, this version doesn't comprise mineral deficiencies, which include too extensive and contain a box to be included with different stresses.
This booklet makes an attempt to research the probabilities of constructing unified ideas of tension damage and resistance. prepared into 4 elements, this version first discusses the strain techniques, relatively the strain and pressure terminologies, in addition to the character of rigidity damage and resistance. Stresses at chilling, freezing, and high-temperatures are addressed individually.

Show description

Read or Download Chilling, Freezing, and High Temperature Stresses PDF

Best nonfiction_10 books

Effects of Mass Loss on Stellar Evolution: IAU Colloquium no. 59 Held in Miramare, Trieste, Italy, September 15–19, 1980

The IAU Colloquium No. fifty nine, "The results of mass loss on Stellar Evolution" was once hung on September 15-19, 1980 on the overseas Centre for Theoretical Physics, Miramare, Trieste (Italy), lower than the auspices of the IAU govt Co~ mittee and the Italian nationwide Council of analysis. The making plans of this convention started years in the past du­ ring the IAU Symposium No.

Cerebral Cortex: Neurodegenerative and Age-Related Changes in Structure and Function of Cerebral Cortex

This quantity of Cerebral Cortex is devoted to Sir John Eccles, who was once an energetic member of the advisory board for the sequence until eventually his demise in may perhaps 1997. His enter as to what subject matters can be coated in destiny volumes of this sequence might be sorely ignored. the current quantity is anxious with neurodegenerative problems and age­ comparable alterations within the constitution and serve as of the cerebral cortex, a subject matter that has attracted expanding curiosity as toughness and the variety of elderly members within the inhabitants elevate.

Alcoholism and Drug Dependence: A Multidisciplinary Approach

It really is for me, as President of the Merseyside Lancashire & Cheshire Council on Alcoholism, a sign privilege to jot down a short foreword to those lawsuits of the 3rd overseas convention on Alcoholism and Drug Dependence. throughout the week specialists, from across the world, in all these disciplines that have a contribution to make to the answer of the issues of alcoholism and drug dependence, surveyed contemporary advances in our wisdom of the aetiology, epidemiology, early reputation, administration, and the social and commercial implications of those dual scourges of the modern scene.

Extra info for Chilling, Freezing, and High Temperature Stresses

Example text

ATPases often show nonlinear relations in Arrhenius plots; yet Kuiper (1972) could not find a distinct transition point for the ATPase from bean roots. Nevertheless, the Q 1 0 decreased when the assay temperature increased. Similarly, in the case of wheat and oats, the activation energy in the high temperature range was lower than in the low temperature range (Kähr and M0ller, 1976). An actual bend in the Arrhenius plot was much less pro­ nounced in wheat than in oats, for the M g 2 + stimulated ATPase.

They concluded that the declining respiratory rate was limited by the oxidative system and not by the concentration of ADP and ATP. However, even if the P/O ratio is unchanged, this simply means that both phosphorylation and oxidative activity are inhibited by the chilling stress. There w i l l , therefore, have to be a decrease in ATP, compared to that in an unstressed plant with normal aerobic respiration. d. TOXINS Plank (see Smith, 1954) has explained injury by the accumulation of a cell toxin due to disturbances in the normal balance of biochemical processes.

Solov'ev and Nezgovorov (1968) hardened cucumber leaves at 10°C, against chilling injury at 3°-5°C. Cell suspension cultures may also be used to investigate chilling resistance, the results being comparable to those with the seedlings (Breidenbach and Waring, 1977). However, cell lines selected for enhanced chilling resistance did not retain this resistance when allowed to develop into plants (Dix, 1977). It must be emphasized, however, that physiological age may affect the plant's susceptibility to chilling injury (Lyons, 1973).

Download PDF sample

Rated 4.44 of 5 – based on 18 votes