Watermelon cv. ‘Aswan F1’ was grafted onto five rootstocks, viz; ‘6001 F1’, ‘Strongtosa F1’, Tetsukabuto F1’, ‘Ferro F1’ and ‘Shintoza F1’ in three field experiments. Results of the first experiment showed that the highest growth and fruit yield were induced by ‘6001 F1’ rootstock using tongue approach method. In the second experiment, ‘Tetsukabuto F1’ produced higher growth, while both rootstocks had higher fruit yield. In the third experiment, grafted plants onto ‘6001 F1’ and ‘Shintoza F1’ gave the highest plant growth and fruit yield.
Potato (Solanum tuberosum L.) is one of the most important vegetable crops in Egypt. Many diseases attack potato in the field and during storage as well. They cause great and destructive losses to the crop, since the diseases cause massive deterioration leading to the loss of hundreds of tons in a matter of days. Soft rot disease causes severe losses to potato tubers as well as to many other vegetable crops.
This work was carried out to investigate the allelopathic effect of purslane, oats, nutsedge, alfalfa, sunflower, onion, and garlic against some summer (maize, grain sorghum, broom corn, sunflower, soybean, alfalfa, jew's mallow) and winter (wheat, faba bean, garlic, onion) crops on seedling growth parameters by leachate, decayed plants, previous plantations and root exudates. In addition trials were done to isolate the bioactive chemical constituents of some allelopathic plants (purslane, alfalfa and sunflower).
There are huge numbers of mites belonging to different mite taxa inhabiting in soil under plants and others infesting leaves of fruit trees and field crops. Some of them are harmful for plants while others can be useful in biological control of pests. So, the present work aimed to survey of mite species associated with certain fruit trees and field crops in three distracts at Sharkia Governorate, Egypt. In addition taxonomical studies to the collected mites with identification keys for them. Finally, taxonomical and biological studies on the predatory mite, Euseius hutu (P. & B.)
There is a large number of underutilized crops in Sri Lanka and also some farmers have lots of knowledge and experience on cultivation and use of these crops. However, no proper studies have been carried out about them and no books are available on them in the country yet. This is the first book of its kind. It contains several aspects of cultivation and use of underutilized crops and thus it will be useful for university students, researchers, agricultural officers, policy makers in national as well as international level.
This book primarily focuses the consumptive along with the non-consumptive uses of water for some selected crops of South Asian region concerning to Pakistan. The study included some of the major cereals, also taking into the account the minor crops and cash crops. Water footprints for the individual crops have been well calculated. The study enables us to assess the use of water not in a conventional way of water withdrawal but in terms of the water footprint which characterizes the use of water that does not return to its origin in a known time scale. The study compares the water footprint values obtained for the selected crops on regional basis, and the ones averaged globally for the same group of crops.
The book Studies on integrated nutrient management in celosia has been written to provide readily available information on nutrient management for flower crops. The text which outs together into its fold the latest technologies on the fertilizer uses of crops will, therefore, cater to the needs of all those who are directly or indirectly concerned with farmers such as student and teachers of Agricultural and Horticultural Universities, researchers, extension workers, educated and progressive farmers.
In plant biotechnology, the in-vitro studies are performed by culturing the plant cell, tissue and organ on an artificially prepared nutrient medium static or liquid under aseptic conditions. The effect of some plant growth regulators were studied on seedling growth and stomatal characters of Brassica campestris L. V.mungo (L.) Hepper, V.radiate (L.) Wilczek.) through in-vitro studies. Black gram (Vigna mungo), is an important short duration pulse crop grown in many parts of India, cultivating both in Kharif and Rabi season. The optimum temperature for better growth of these crops ranges between 25 to 350C, but it can tolerate up to 420C which permit to cultivate during summer and winter season. Mungbean crop (Vigna radiata (L) Wilczek) is considered as one of the new crop in Egypt, it is important legume crop characterized by a relative high content of protein. The application of novel tissue culture and genetic engineering technology could offer efficient and stable plant regeneration. Brassica are still considered as an important source of green vegetable in the developing countries and the potential for market diversification of some new crop types.
Pot experiments were carried out on silt loam soils (Inceptisols) to investigate the effect of different levels of nickel and moisture stress on the uptake of nickel by vegetable crops. Pui and kalmi were the test plants. Nickel application influenced the uptake of nickel by kalmi and pui plants. Their content of nickel increased significantly with increasing Ni concentration in soil compared with control. Different levels of moisture also influenced the uptake of nickel. The content of nickel was higher in both kalmi and pui at higher moisture level. Root accumulated more Ni at higher moisture content in case of both pui and kalmi plants.
Capsicum is one of the most popular and highly remunerative vegetable crops grown in most parts of the world for its delicious taste and pleasant flavour. Capsicum cultivation under protected condition is gaining popularity especially coloured hybrids in peri-urban production system because of easy access to urban markets. One of the important limiting factors in the cultivation of capsicum is damage caused by Tobacco caterpillar. The caterpillars of the pest generally defoliate crops in vegetative stage and attack the fruits in fruiting stage under open and protected environment. The present investigation was carried out to study the annual life cycle and the efficacy of some modern insecticides along with biopesticides against the pest. This book would be for paramount importance for the graduate and post-graduate students as well as research scholars of Entomology and Horticulture.
Weeds differ in their ability to compete with crops at similar density levels. This is primarily because of differences in their growth habits and to some extent in the allelopathic. Allelopathy has been defined as the inhibitory or stimulatory effects of a plant or microorganism on other plants through the release of chemical compounds into the environment. Some crops and especially cereal plants such as wheat, barley and corn were also produce chemical materials which affect other plants growth and development.
This book entitled Studies on the Spectrum and the Energy of Graphs is a humble attempt at making a small addition to the vast ocean of results on the spectrum and energy of graphs in graph theory. We mention some very significant developments in the theory of eigenvalues and energy of graphs and also some recent results in the spectral theory of graphs. Some parts of the results mentioned in this book have been presented in international conferences and appeared in international scientific journals. The author is happy to share that the chapter on Reciprocal Graphs was presented in the ICM 2006 at Madrid.