Wyniki wyszukiwania:

Atmospheric ducts are of great importance to study. These ducts tend to bend radio signals. The applications based on radio signal propagation through atmosphere are subjected to errors and inaccuracies. These applications may include satellite pointing, RADAR detection, location identification, etc. In this study formation of tropospheric ducts and propagation of RF signals through these ducts have been investigated over Pakistan, India, Afghanistan & related countries using satellite-sensed data during January 2009 to December 2012. Existence of ducts over large areas in Pakistan is found...

Wheat is an important cereal crop and is a staple food for most of the world population. Being major consumable commodity it occupies a prominent position and is cultivated on an area of 8463.0 thousand hectares. 25-30% of the total cropped area is rainfed where the available water resources are limited. Water stress affects plant growth at early stage and at grain filling stage resulting in decreased yield. Twenty two lines/varieties were used to study the correlation and path co-efficient analysis among fourteen different seedling and maturity traits. Root density, tillers per plant, spike...

Maize plant is a c4 plant having high input requirements including irrigation water. In Pakistan 25-30% of the total cropped area is rainfed where the available water resources are depleting very quickly. Water stress or drought is one of the major limiting fator in crop production around the globe. Water stress affects plant growth both at early stage and at grain filling stage resulting in decreased yield. Fifty inbred lines were used to study genetic variability, correlation and path co-efficient analysis among various seedling and maturity traits. Under drought conditions, 100-grain...