Evaluation of varieties and hybrid lines in international obser-vational experiments
2004
Dorosti, Hamid | Ghodsi, Mohsen | Nuori, Mohammad Zaman | Tarang, Ali Reza | Saiadi, Mahmood | Niazi, Naser | Mohammadi, Mohammad | Alinejad, Eisa
In order to exchange the genetic materials and germplasm of observational experiment were carried out in associated inter-national with IRRI. Every year International Rice Research Institute distributes a few promising hybrid rice seeds in some countries . Ninth set of this was sent to Rice Research Institute of Iran and laid out in experi-ment design with four replications and in two locations. aug-mented During growth stages some characters such as tiller number, plant height, days to 50% flowering , panicle weight , yield and vigor of were recorded based on standard evaluation system for rice . seed-ling in Amol location two hybrids (IR80126H و IR80126H) and four There-fore, lines as follow IR63864-147-1-3-24R , IR69724-126-3-3-2-3R, re-storer IR71604-4-1-4-2-3-2-3-2R, IR72102-3-135-1-1-2R were selected of suitable phenotype , high panicle weight ,high yielding and be-cause the restorer lines were added to restorer nursery . In Guilan location these IR80117H, IR80127H and IR76708H in cause of yield and early hy-brids maturity were selected and three restorer lines such as IR60199-B-B-2-1R , IR71604-4-1-4-2-3-2-3-2R and IR72102-3-135-1-1-2R were added to parental nursery .And also all of raw data were recorded in the field book and were sent to International Rice Research Institute.
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