Search Results
Cucumber (Cucumls sativus L.) and cantaloupe (Cucumis melo var. Cantaloupensis L.) seedlings have been subjected to a wide range of rhyzosphere pH. Each plant was grown in one pot in water culture. The results obtained showed a great influence of pH on plant root length, root diameter and number of roots, in addition to the subsequent effect on the vegetative growth. The experiment suggests the importance of rhyzospher pH to produce healthy cucumber and cantaloupe seedlings with the maximum root performance. Obtained date were discussed according to the prevailed microlimatic conditions.
Jews' Mallow (Melokhia) Corchorus olitorus, is a very important leafy vegetable for the Egyptians all year round, except for winter period. Short days and low temperatures accelerate the flower initiation and inhibits the vegetative growth entirely. Some supplimentary light of 8000 lux for one or two hours after sun-set, or as a flash for 10 min. at mid-night have been tried. The obtained results showed that two hours of artificial light after sun set inhibits the flowering and encourages leaf number, leaf area, plant height, plant fresh and dry weight, and leaf/height ratio. The obtained data were discussed in relation to the prevailed microclimatic conditions.