Evaluation of promising bread wheat lines in elite regional uniform yield trials (ERWYT81) in southern warm zone (Zone II)
2005
Jalal Kamali, Mohammadreza | Nateq, Zahra | Radmehr, Mohammad | Akbari Mogadam, Hosein | Nikzad, Ahmad Reza | Farzadi, Hossein | Mogadam, Mohammad | Bahari, Mohammad | Abedini, Mohammad | Abdollahi, Abolqasem | Mardani, Mohammad | Jokar, Karim | Rigi, Zaman | Rostami, Hasan
In order to determine the adaptation of bread wheat genotypes, 18 promising lines/ cultivars and cv. Chamran, a commercial cultivar as control and Improved cultivar were studied in six experimental field stationsZabol, Ahwaz, Darab, Dezful, Iranshahr, Khorramabad, for two successive cropping seasons (2002 –04), using randomized complete block design (RCBD) with three replications. These lines were also studied for their reaction to major diseases in known hot spots for Yellow Rust (YR), Leaf Rust (LR), Karanl Bunt (KB), Septorios etc. In special diseases nurseries, under natural and artificial inoculating conditions. Analysis of variance was performed to study the main effects of genotypes (G), year (Y), location (L) as well as the interaction between these factors. To study the adaptation and yield stability, rank method was applied, and mean yield, mean and standard deviation of rank (R and SDR) were used. Lines with higher grain yield, better adaptability, yield stability, desired agronomic performance and tolerance/ resistance to major diseases in southern warm and dry zone were identified. Non of the new lines/cultivars were superior to Chamran with mean grain yield of 6433 Kg/ ha, mean Rank of 6.25, standard Error of Rank of 5429, yield Ratio Index of 108 and high yield stability. Therefore no promising lines/ cultivar was selected for evaluation on- from conditions.
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