الفهرس 
Adventitious bud formation (direct organogenesis) from cotyledons explantOnly 14 pages are availabe for public view
Abstract
This study was carried out at the gene transfer and synthetic seeds
laboratory. Plant Biotechnology Department, Genetic Engineering and
Biotechnology Research Institute, (GEBRI), Menofiya university, Sadat
City, through the period from 2007 to 2010.Egypt.Watermelon (Citrulus
lanatus Thumb.) belonging to the family cucurbitaceae, is a popular fruit
which native Central Africa, was first grown by ancient Egyptians and is
believed to also have been cultured in Asia minor, Russia and the near
and Middle East thousands of years ago. It is widely grown in the tropics
and subtropics, most part of South East Asia, Africa, the Caribbean and
the southern part of United States. Watermelon is an economically important crop and a valuable alternative source of water in desert areas. It is a good source of fiber, which help to reduce cholesterol, important for keeping our digestive tract operating properly, by preventing constipation, hemorrhoids and diverticular disease. It is a good source of vitamin C and important mineral. The nutritive value of seeds is due to their high oil and protein content. Regeneration of plants from adventitious shoots is necessary for application of gene transfer technology and for screening plants for somaclonal variation. The latter purpose would be particularly interesting in which conventional breeding programmes have had relatively little impact upon commercial production. In conventional method, watermelon is propagated by seed. But in this plant, there are some problems in their propagation. Low
productivity, disease susceptibility and higher cost of production are
major constraints faced by watermelon. In the recent years
micropropagation techniques are being profitably used to overcome such
constraints in various crops as well as ornamental and horticultural plants.
Due to present demand (economic) and recover the propagation problem.