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To find out the effect of planting method and nitrogen fertilizer on the grain yield and quality of some rice cultivars, a two-year field trials was conducted at Sakha Res. Stn., Kafr El-Sheikh, Egypt during 2006 and 2007 summer seasons. Three planting methods (regular transplanting, mechanical drilling and hand broadcasting) and three nitrogen levels (69, 144 and 192 kg N ha-1) were tested to study their effects on grain yield and quality traits of four rice cultivars, viz. two inbred (Giza 178 and Sakha 104) and two hybrid (Egyptian hybrid one and SK 2058 H). The experiment was planned according to the split split-plot design with four replications. The main plots were devoted to methods of planting and the sub-plots were occupied by rice cultivars. However, nitrogen levels were assigned to sub sub-plots. The main results revealed that transplanting method gave the highest values of grain yield and most of its attributes (panicle length, total number of grains panicle-1, panicle density, sink capacity, 1000-grain weight and panicle weight). In addition, it recorded the highest values of protein content. However, broadcasting method recorded the highest values of number of panicles m-2 and straw yield, as well as the highest value of hulling, milling and broken grain percentage. 'Egyptian hybrid one' cultivar recorded the highest values of number of panicles m-2, total number of grains panicle-1, sink capacity, panicle weight, grain and straw yields as well as the highest value of protein content. On the other hand, Sakha 104 recorded the highest values of 1000-grain weight, as well as hulling and broken grain percentage. However, Giza 178 recorded the highest values of head grain percentage in the first season and SK 2058 H recorded the highest values of milling and head grain percentage in the second season. Results, showed also that increasing N levels up to 192 kg N ha-1 increased grain yield and its attributes as well as grain quality (hulling, milling, and head grain percentage and protein content). Generally, Egyptian hybrid one (as hybrid) and Giza 178 (as inbred) recorded the highest values of grain yield under transplanting method with application of 192 kg N ha-1. [ABSTRACT FROM AUTHOR]

A two-year field experiment was undertaken at Sakha Res. Stn., Kafr El-Sheikh, Egypt during 2006 and 2007 summer seasons to study growth attributes of some rice cultivars under various planting methods and nitrogen levels. The experiments were laid out in a split split-plot design, with four replications. The main plots were devoted to three methods of planting; namely, regular transplanting (RT), manual broadcasting (MB) and mechanical drilling (MD). The sub-plots were occupied by four rice cultivars, two hybrid (Egyptian hybrid one (EHRl) and SK2058H) and two inbred (Giza 178 and Sakha 104). However, three nitrogen levels (96, 144 and 192 kg N ha-1) were assigned to sub sub-plots. The main results revealed that RT method gave the highest values of chlorophyll content (at booting and heading stages), dry matter production (at booting stage) and plant height (at harvest). On the other hand, MB method recorded the highest dry matter (at heading stage), crop growth rate, number of tillers m-2 and LAI in both seasons. The rice crop established with direct seeding (broadcasting and drilling methods) headed seven days earlier than the transplanted one. The highest chlorophyll content, at booting stage, was obtained by SK2058H in the first season and EHRl in the second one. However, the highest chlorophyll content, at heading stage, was recorded by Giza 178 and EHRl in both seasons, alternatively. The hybrid rice cultivars (EHRl and SK 2058 H) exceeded the inbred ones (Sakha 104 and Giza 178) in dry matter production (at booting and heading stages), CGR, number of tillers m-2 and LAI in most cases. SK2058H was significantly the latest to 50% heading, while Giza 178 produced the shortest plants. Increasing N-fertilizer levels up to 192 kg N ha-1 caused linear increases in the studied growth characters (chlorophyll content, dry matter production, CGR, LAI, days to heading and plant height). Generally, EHRl (as hybrid) and Giza 178 (as inbred) recorded the highest values of the most studied growth characters under transplanting method and application of 192 kg N ha-1. [ABSTRACT FROM AUTHOR]