Beans are a staple all over the populace . They ’re high in protein , nutrients and fiber . Beans can be consumed fresh in their seedcase or shell and dried into a product that can last for long time under the right-hand conditions . They ’re easy to grow , even in poor soils . As a leguminous plant , they fix nitrogen in the flat coat and are often rise as a green manure to better tilth tilth and natality . Any potential threat to edible bean production is taken seriously in farming spheres .
The Salt Problem in Agriculture
The comportment of salts in educate soils is one such menace to agricultural intellectual nourishment production in general and beans in fussy . Over time , salt concentrations tend to build up in cultivated soil . This salt is either brought to the land in irrigation water , or was already present in the ground , but becomes more predominant when crops percolate other minerals out of the dirt , leaving the saltiness behind . In either case , it ’s become a serious enough problem to affect one - fifth of the humans ’s cropland . Two types of salt in special are most prevalent : sodium chloride ( the same mineral as table salt ) and sodium sulfate .
How Salt Affects Beans
Strategic Arms Limitation Talks dissolve promptly in urine , separating into positively charged atomic number 11 and negatively charged sulphate or chloride . The factor sodium is chemically similar to potassium , which means it will bind pronto in plant cellular phone and inhibit cellular procedure . Osmotic pressure drive water out of the roots of plants , which is especially bad for bean as their recollective root word require hydraulic air pressure to keep their structure . As a upshot of dehydration and inhibited nutritive use , beans shrivel and mislay their color . Overall , their leaves , stems and roots are little in direct correlation with the salt assiduity in their environs . heyday and seed production are severely curtailed . Exposed too long to salt , or too eminent a assiduousness , and bonce plants will die .
Beans and Salt Sensitivity
Beans need more weewee than many other types of crops , due to their rapid , tall growth . As a result , salt ’s desiccate qualities peculiarly touch them . Beans are among the most common salt - sensitive of all study crop .
How Beans Resist Salt
Beans do have a duo of defense mechanism mechanisms for resisting redundant salinity . When water becomes less available , either because of drought conditions or osmotic force per unit area , bonce close down the stomate on their leave of absence , thereby deoxidise water loss through transpiration . They also produce an osmolyte call proline , which stabilizes cell membranes , making them less permeable , so water ca n’t leach out of cell so readily . alas , the closed stomata and proline yield affect other plant life systems adversely , so these short - term coping mechanism can ultimately cannonball along a plant ’s demise .
Salt Tolerance of Beans
flora stock breeder hope to genetically exploit bean ' body of water - save mechanisms to prepare more salt - resistive strain of flora .
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