Abstract Background and aims Sorghum ( bicolor ) is able to exude allelochemicals with biological nitrification inhibition (BNI) capacity. Therefore, sorghum might be an option as cover crop since its BNI ability may reduce N pollution in the following due a decreased nitrification. However, exudation related physiological state development of plant, so abiotic stresses such drought modify rate...

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north-western iran comprises diverse geographical landscapes, including pastures of piedmonts, mountains, and well-watered plains. the present chronology of this region, nevertheless, is based exclusively on data collected from sites around the urmia lake, other regions being almost totally ignored. during the late bronze age (hereafter lba) a new way of life took shape in the mountainous regio...

In this study, the role of abscisic acid (ABA) in altered stomatal responses of Tradescantia virginiana leaves grown at high relative air humidity (RH) was investigated. A lower ABA concentration was found in leaves grown at high RH compared with leaves grown at moderate RH. As a result of a daily application of 20 microM ABA to leaves for 3 weeks during growth at high RH, the stomata of ABA-tr...

The objective of this study was to determine the effect drought stress on neutral detergent fiber (NDF) and lignin (LIG) concentrations in vitro dry matter digestibility (IVDMD) (IVNDFD) leaf blades stem internodes corn for silage. Eight plots were blocked (i.e., 4 blocks) randomly subjected a watered (W) or non-watered (NW) treatment. Within each block, split into 7 sub-plots, which 1 hybrids ...

Before my arrival in India, I had heard of the existence of certain boils and sores in many Eastern cities, which having once been places with encrmous populations and all the requirements of wealth and luxury?well drained?well watered?and adorned with numerous trees and gardens?had in the process of centuries become, for the most part, desert wastes?their canals and water-courses choked up, an...

One of the frustrations of life for those who seek change, is the slow pace of reform. Policy reform in arts and culture is no exception. Governments offer promises, but they seem to take forever to arrive, and are often watered down when they do. Why is this so? We have no shortage of policies, Acts, discussion papers and other worthy documents telling us how things could change, but there is ...

Abstract Salt stress is one of the most serious factors that influence plant growth and yield. The extensive use chemical fertilizers caused an increase in land contamination hence effects on human health. biofertilizers can solve these problems. In present work, different concentrations Spirulina platensis liquid extracts (SLEs; 1%, 2%, 4%) were used to enhance seeds germination, seedling grow...