Biodiversity refers to the structural and functional variety of life-forms at genetic, population, species, and community and ecosystem levels. The loss of the earth's biological diversity is one of the most critical environmental and development issue. I 1st ed. xvi+397p., Tables, Figures, References, Index, 25cm.

The science of Plant Physiology is never static but always changing as new facts are discovered and fresh concept developed. Many aspects of practical agriculture can benefit from more intensive research in plant physiology to the solution of practical pr 1st ed. xvi+404p., Figures, Tables, Illustrations, 25cm.

1st ed. xii+186p., 25cm.

We must guide the human race living in a historic transitional period of burgeoning awareness of the conflict between human activities and environmental constraints, preparing to venture into a new century and a new millennium and to finally help save the 1st ed. viii+406p., viii+407-770p., viii+771-1122p., viii+1123-1466p., viii+1467-1818p., Illustrations, Tables, Figures, 25cm.

Organic farming is a crop production system that avoids the use of synthetic and chemical inputs like fertilizers, pesticides, growth regulators and livestock feed additives. Indiscriminate use of synthetic chemicals and the problems arising from them for 1st ed. viii+290p., Tables; Figures.

Recent years have witnessed major and exciting discoveries in various aspects of plant sciences, which penetrate all aspects of agricultural research. Especially exciting are the prospects of some new discoveries in Biotechnology fields which hold promise 1st ed. xxxiv+366p., Tables; Figures.

Ecology is usually considered a branch of biology, the general science that studies living organisms. Organisms can be studied at many different levels from proteins and nucleic acids (in biochemistry and molecular biology), to cells (in cellular biology) 1st ed. viii+286p.

In the Post World War Period, environmental issues and challenges have become a key concern world wide and the subject matter of debate, discussion and dialogue in academic as well as in political circles. As a result of seemingly well-thought out develop 1st ed. lii+348p., Tables.

The effectiveness of a new health technology is judged by both its accessibility and also the extent to which it has been adopted in a particular country. With the possibility of an AIDS vaccine in the near future, the International AIDS Vaccine Initiativ 1st ed. 236p., References; Index; 19cm.

Pollution involves so many different factors from so many sources that there is no single or simple remedy. Pollution is an evil which has born out of development. Mankind will perish if the protection of the environment does not become an integral part o 1st ed. xviii+397p.