Onion is a herbaceous biennial monocot cultivated as an annual crop. The number of flowers opening oneach day was influenced by hours of sunlight and concentration of phosphorous (P) and nitrogen (N). Nand P treatments tended to lower bolting percentages. The yield of onion seed per plant increased as thenitrogen in the nutrient solution increased where seed stalks were produced. The effect of early dressingsof N on crops grown under conditions when nights are becoming cooler is shown to allo...
Seed quality deterioration is inevitable process. Since seed is a vital input in agriculture which determines not justthe production but also the productivity, it is crucial to maintain the seed quality as well as seed vigor during the storage. Storageis a basic practice in the control of the physiological quality of the seed and is a method through which the viability of the seedscan be preserved and their vigor kept at a reasonable level during the time between planting and harvesting. Many...
ABSTRACT Great progress has been made over the past decades with respect to the application of genetic engineering to increase food supply and to generate nutritionally improved food crops. The role of genetically modified (GM) crops for food security is the subject of public controversy. Genetically engineered crops could contribute to food production increase and higher food availability. They also impact on food quality and nutrient composition. This work discusses the challenges of food i...