Two field and laboratory experiments were conducted at Rice Research and Training Center (RRTC), Sakha. Egypt The first experimental was conducted with randomized complete block design with three replications to identify the mean performance of some rice varieties for morphological and yield characters, chemical, quality characters. The second experimental carried out at Rice Technology Training Center (RTTC) at Alexandria to study the effect of temperature, sample weight and their interaction on technological traits with split-split plot design with three replications during two seasons. The results showed that highly differences found for days to heading, plant height, number of panicles/plant, panicle weight, total grains/panicle and grain yield (t/fed) among the studied varieties. The Sakha 108 variety recorded the superior values for all the studied characters except days to heading. The Black rice variety recorded the lowest value for days to heading and plant height characters, while, recorded the desirable values for micro elements, zink, iron and protein, moreover, the short glutinous variety recorded the desirable values for fired characters. The Egyptian Yasmin was later one for days to heading, for the grain quality characters, moreover, recorded the desirable values for cooking characters as aromatic rice. Finally, it could be recommended these varieties used as adorners to improvement the grain quality characters in rice breeding program. Moreover, the denderogram analysis showed that the Egyptian yasmin as indica type was in one group, while, all japonica type was in second group, that confirmed with morphological, yield and grain quality characters.