منابع مشابه
Chitosan in Plant Protection
Chitin and chitosan are naturally-occurring compounds that have potential in agriculture with regard to controlling plant diseases. These molecules were shown to display toxicity and inhibit fungal growth and development. They were reported to be active against viruses, bacteria and other pests. Fragments from chitin and chitosan are known to have eliciting activities leading to a variety of de...
متن کاملPlant protection with inorganic ions.
Gradients of salts of the specific ion repellents for Meloidogyne incognita -- NH, K, Cl, and NO -- have been demonstrated to shield tomato roots from infestation in soil. The strategy of these greenhouse experiments was to interpose a salt barrier in a soil column between the plant roots and the nematodes. The relative effectiveness of the salts as a barrier to infective second-stage juveniles...
متن کاملQuality Control of Plant Growth, Plant Protection, and Quarantine
The development and use of many efficient and economical pesticides, since the 1940s, have permitted unprecedented crop and animal protection, and improved public health. Despite the positive effects mentioned above, many problems arose, such as the destruction of other pests in addition to target pests, destruction of natural enemies, pest resistance, and the health hazards caused by pesticide...
متن کاملPromoting Plant Protection by Root-Associated Microbes
The rhizosphere is a narrow area around plant roots in which root-secreted secondary metabolites and microorganisms co-exist and interact. This area can also be considered as a battle field where beneficial bacteria and deleterious microorganisms compete. Therefore, this specific root area has been a topic of interest for researchers for more than a century. Among the diverse microbial populati...
متن کاملThe Plant Protection Racket - Butterflies and Wheels
Before the Industrial Revolution, artists and artisans would strive to make a work as perfect as possible. They used the technologies of their time to make as fine a product as their skill and limited technology allowed. Given the long painstaking efforts involved in creation, such items were few in number and available to only a minuscule number of elites. They were the crowning achievement of...
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ژورنال
عنوان ژورنال: Nature
سال: 1979
ISSN: 0028-0836,1476-4687
DOI: 10.1038/278598a0