Rooting depth and water use efficiency of tropical maize inbred lines, differing in drought tolerance
نویسندگان
چکیده
منابع مشابه
Rooting traits of peanut genotypes differing in drought tolerance under drought stress
The effects of two water regimes (well-watered condition or drought stress) on root length,root surface area and root volume were tested on two peanut genotypes (the drought-resistantvariety HuaYu 22 (HY22) and the drought-sensitive variety HuaYu 23 (HY23)), measured 101days after sowing. The roots were sampled from the upper (0–40 cm) and deeper (40–100 cm)soil layers. Root diameter was measur...
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abstract in order to genetic investigation of drought resistance indices, on 25 maize inbred lines, an experiment was conducted under three irrigation regimes; normal irrigation, limited vegetative irrigation and limited reproductive irrigation. in the limited vegetative irrigation, tol (stress tolerance) index had the highest phenotypic and genotypic coefficient of variation (83.83% and 68.04%...
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BACKGROUND AND AIMS Drought is a major environmental constraint affecting growth and production of Coffea canephora. Selection of C. canephora clones has been largely empirical as little is known about how clones respond physiologically to drought. Using clones previously shown to differ in drought tolerance, this study aimed to identify the extent of variation of water use and the mechanisms r...
متن کاملDrought Responses of Foliar Metabolites in Three Maize Hybrids Differing in Water Stress Tolerance
Maize (Zea mays L.) hybrids varying in drought tolerance were treated with water stress in controlled environments. Experiments were performed during vegetative growth and water was withheld for 19 days beginning 17 days after sowing. Genotypic comparisons used measured changes of leaf water potential or results were expressed by time of treatment. Total dry matter of the drought tolerant hybri...
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ژورنال
عنوان ژورنال: Plant and Soil
سال: 2008
ISSN: 0032-079X,1573-5036
DOI: 10.1007/s11104-008-9843-6