the objective of this work was to study the responses of two baby lettuce (lactuca sativa l.) cultivars, namely, green paris island and red sanguine, to different nacl concentrations (0, 5, 10, and 20 mm). the study was conducted in a floating system and plants were harvested at the stage of 5-6 leaves, outside leaf 6-10 cm in length (25 and 31 days after sowing for green and red lettuce, respe...

the effects of rootstocks such as 'sour orange' (citrus aurantium l. var. ‘yerli’), 'carrizo' and 'troyer citranges' (citrus sinensis osb. x poncirus trifoliata raf), 'smooth flat seville sour orange' (citrus spp. hybrid of uncertain origin), 'brazilian sour orange' (citrus aurantiam l. var. ‘brasilian’), 'volkameriana' (citrus volkameriana tan. and pasq.) and 'calamondin' (possibly citrus reti...

plant spacing and nitrogen are the most important factors for increasing tuberose quality and quantity. in this study, field experiment carried out as factorial randomized completely block design (rcbd) in 3 replications. different levels of nitrogen (0, 50, 100, 150, 200, 250 kg/ha) of ammonium nitrate was used. second factor was different plant spaces (10, 15, 20 and 25 cm). results showed th...

The three cardinals of human diets i.e., starch, protein and oil, are derived primarily from vegetable sources. With world's increasing population, there is urgent need not only to increase the output of existing crops but simultaneously improve their qualitative aspects as well. Additionally, emphasis is also required to introduce new crops in supplying diets in order to ease burden of the exi...

normal 0 false false false en-us x-none fa background: nowadays wastewater is one of the important sources of environmental pollutions and   one of the aims of wastewater treatment is to maintain a healthy environment. nonstandard wastewater discharges and their use in agriculture or discharge to surface water will follow environmental and health hazards. the aim of this study was to compare th...

The development and use of many efficient and economical pesticides, since the 1940s, have permitted unprecedented crop and animal protection, and improved public health. Despite the positive effects mentioned above, many problems arose, such as the destruction of other pests in addition to target pests, destruction of natural enemies, pest resistance, and the health hazards caused by pesticide...

Plant factory is known as the closed controlled plant production systems with the artificial lighting. Environmental factors have been concerned as the most important factors to influence quality of product in plant factory. One of the most applicable technologies for optimizing plant production system in plant factory is Infotronics. In the plant factory, Infotronics is defined as a combinatio...