Results 251 to 260 of about 257,139 (304)

“Cold Tropics”: Permafrost Existence and Thickness on Eastern Nevado Coropuna (Southern Peruvian Andes) Revealed by Ground‐Penetrating Radar and Geoelectrical Soundings

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT The existence of permafrost was explored at tropical latitude on Nevado Coropuna (southern Peruvian Andes) using a combination of ground‐penetrating radar (GPR) and vertical electrical sounding (VES) in order to strengthen the mutual validation of data processing and interpretation.
Velnia Chacca   +6 more
wiley   +1 more source

Review: An integrated framework for understanding ecological drought and drought resistance

Science of The Total Environment, 2022
Droughts are a frequent natural phenomenon that has amplified globally in the 21st century and are projected to become more common and extreme in the future. Consequently, this affects the progress of drought indices and frameworks to categorize drought conditions. Several drought-related indices and variables are required to capture different features
Sayed Shah Jan, Sadiqi   +3 more
openaire   +2 more sources

Roots and drought resistance

Agricultural Water Management, 1983
Passioura, J.B., 1983. Roots and drought resistance. Agric. Water Manage., 7: 265–280. The influence of roots on the yield of water-limited crops is analysed with the help of the identity: yield = water used × water-use efficiency × harvest index Despite being severely water-stressed, many droughted crops leave substantial amounts of ...
openaire   +1 more source

Drought Resistance and Wheat Breeding

Agricultural Water Management, 1983
ABSTRACT Schmidt, J.W., 1983. Drought resistance and wheat breeding. Agric. Water Manage. , 7: 181–194. The breeding of wheat ( Triticum species) for drought resistance has been indirect for the most part. The most direct approach has been identifying an appropriate crop maturity that maximizes growth and the accompanying yield component ...
openaire   +1 more source

Drought relations of shrub species: assessment of the mechanisms of drought resistance

Oecologia, 1983
Relatively static factors such as depth of rooting and cuticular conductance and relatively dynamic factors such as stomatol control and changes in the components of water potential were used to assess the drought resistance characteristics of six deciduous shrub species.
T M, Hinckley   +3 more
openaire   +2 more sources

Mechanisms of Drought Resistance

2015
There are different sources of genetic variation which introduce variability in the gene pool. Wide range of variability in germplasm provides multiple options for improvement against different stresses. For resistance against drought stress, there are different mechanisms that confer drought resistance in different biological ways.
Muhammad Aslam   +2 more
openaire   +1 more source

Breeding Methods for Drought Resistance

1989
Drought resistant varieties were developed in many crop plants by the use of the empirical breeding approach which involves intricate biometrical designs and estimates of stability of yield performance over many locations and years. While success is on record, the method is laborious, expensive and time consuming, largely because yield is an imperfect ...
openaire   +1 more source

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