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Faculty of Science and Arts - Khulais
Document Details
Document Type
:
Article In Journal
Document Title
:
Melilotus indicus (L.) All.,a salt – tolerant wild leguminous herb with high potential for use as a forage crop in salt –affected soils.
الحندقوق نبات برى بقولى متحمل للأملاح بقدرة عالية للاستخدام كمحصول علف فى الأراضى المصابة بالأملاح
Document Language
:
Arabic
Abstract
:
Previously unexploited legume species may offer utilization potential where environmental stresses constrain the use of more conventional forage crops. Melilotus indicus (L.) All.,Yellow sweet clover, occurs as a weed in different habitats in Egypt. It grows in moderately saline areas, where traditional forage legumes cannot be cultivated. Our extensive field studies have recorded the species in many different habitats ranging from healthy agricultural lands to abandoned saline areas. The studied plants maintained high nodulation capacity (68 – 95 %) and nitrogenase activities (about 1.81 mmol C2H4 plant-1 h-1) in different habitats. Greenhouse experiments demonstrated that seed germination was maintained at 80 % when growing on substrats containing 200 m MNaCl and that 25 % of the germination capability was preserved when 300 m M NaCl was added to the growth medium. The growth rate of seedlings was not significantly affected by 200 mM NaCl but was reduced by 30 % under 300 mM NaCl. It is supposed that M. indicus uses a salt inclusion mechanism for maintaining growth under saline conditions, as it accumulated high amounts of Na+ and Cl- ions. Leaf succulence and indices of leaf water status did not differ among the salt treatments, where as relative water content was reduced by only 3 % and water content at saturation increased by about 14 % a thigh salt concentrations in the growing medium. Our results suggest recommending the cultivation of M. indicus in salt-affected soils, which a rewidespread and pose a problem for the farmers of Egypt and other countries in the world’s arid belt.
ISSN
:
18363644
Journal Name
:
Flora
Volume
:
204
Issue Number
:
10
Publishing Year
:
1430 AH
2009 AD
Article Type
:
Article
Added Date
:
Monday, January 3, 2011
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
عماد على الشريف
Al Sherif, Emad Ali
Investigator
Doctorate
emad_702001@yahoo.com
Files
File Name
Type
Description
28460.pdf
pdf
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