Early Events In Monocot Evolution Systematics Association Special Volume Series Series Number 83 Publisher Cambridge University Press New Edition May 30 2013 Hardcover 378 Pages

Natufian Foragers in the Levant

The Natufian culture, first recognized by Dorothy Garrod in 1928, is one of the best recorded archaeological examples of foragers at the end of the Ice Age. The many unique material finds and social aspects of this culture found their place in different hypotheses concerning the emergence of cultivation in Southwest Asia that heralds the Neolithic Revolution. In the heart of the Levant, Natufian sites are early examples for sedentism that apparently led to changes of socio-economic strategies in this region. Given the quality and quantity of its archaeological record, it is better known than most other Terminal Pleistocene cultures across Eurasia. This volume, the result of a large, international meeting on the Natufian culture, brings together a series of new discoveries and studies of sites from areas not previously investigated, thus substantially enlarging the geographic scope of this culture along the north-south axis of the Levant. Field and laboratory research reported in this book was conducted by different teams of archaeologists, archaebotanists, zooarchaelogists, and other experts both local and international. This comprehensive book adds a considerable amount of new information to our knowledge. It demonstrates the ongoing interest among numerous scholars whose efforts widen and deepen the understanding of the Natufian culture and will remain as a source of data and interpretations for years to come, just as its predecessor that was published in 1991.

Morphogenesis in Plants: Molecular Approaches

Allelopathy in Ecological Agriculture and Forestry

The rapidly growing human population has increased the dependence on fossil fuel based agrochemicals such as fertilizers and pesticides to produce the required agricultural and forestry products. This has exerted a great pressure on the non renewable fossil fuel resources, which cannot last indefinitely. Besides, indiscriminate use ofpesticides for pests (weeds, insects, nematodes, pathogens) control has resulted in serious ecological and environmental problems viz. , (A) Increasing incidence of resistance in pest organisms to important pesticides. (B) Shift in pests population, particulary in weeds and insects. In weeds, species that are more closely related to the crops they infest have developed. In insects, scenario is most grim, the predators have been killed and minor insect pests have become major pests and require very heavy doses ofhighly toxic insecticides for their control. (C) Greater environmental pollution and health hazards (a) particularly from contamination of surface and underground drinking water resources and (b) from their inhalation during handling and application. (D) Toxic residues of pesticides pollute the environment and may prove hazardous to even our future generations. (E) Some agricultural commodities may contain minute quantities ofpesticides residues, with long tenn adverse effects on human and livestock health. Therefore, serious ecological questions about the reliance on pesticides for pests control has been raised. The use of fertilizers, besides causing environmental problems has also impoverished the soil health and decreased the beneficial soil fauna. For example, in some major crop rotations viz.