Showing 3 results for M. Moghaddam
J. Jafarzadeh, A. Babai-Ahari, M. Moghaddam Vahed, M. Valizadeh, H. Kazemi, H. Ghazvini,
Volume 9, Issue 1 (spring 2005)
Abstract
The reaction of forty two barely landraces, mostly from Azarbijan Province and a susceptible cultivar, Zarjo, was studied under greenhouse conditions in the presence of four highly virulent isolates of Pyrenophora graminea, i.e. Marand 3, Ajabshir 2, Khasseban-Tireh, and Bostanabad. The experimental design was a split-plot based on randomized complete blocks with three replications. Landraces were considered as sub-plots and the isolates as whole plots. The seeds were inoculated by the sandwich method and responses of the landraces were evaluated by the method of Mathur and Bhatnagar. The resistance of landrace #1 to the isolates of Marand 3 and Ajabshir 2 and that of landrace # 27 to the isolate of Ajabshir 2 was observed. These landraces could be used as a source of vertical resistance in barley. Landraces 6, 8, 11, 12, 13, 15, 17, 25, 27, 28, 29, 31, 33, 34, 36, 37 and 41 were classified within the range of partial resistance to partial susceptibility, which may be utilized as the sources of horizontal resistance.
Gh. Mohammadi, K. Ghasemi Golezani, A. Javanshir, M. Moghaddam,
Volume 10, Issue 2 (summer 2006)
Abstract
In order to investigate the effect of different irrigation regimes on some agronomic and physiological characters of three chickpea cultivars (Jam, 301 and Pirooz), a field experiment was conducted in 1998 at the Agricultural Research Farm of Tabriz University, Tabriz, Iran. A split plot experiment based on a randomized complete block design with three replications was used, in which irrigation treatments (full irrigation, irrigation at only branching or flowering and or pod formation stage) were in the main plots and chickpea cultivars were in the sub plots. Under limited irrigation conditions there were no significant differences among irrigation regimes for green cover percentage and the number of pods per plant while rate and duration of grain filling, grain weight and grain yield were significantly higher for irrigation at pod formation than for irrigation at branching or flowering stage. The mean of all the traits, except for the number of seeds per pod were significantly higher for full irrigation than for limited irrigation treatments. Rate of grain filling, maximum grain weight and grain yield were significantly higher for irrigation at flowering than for irrigation at branching stage. While, other characters were not significantly different between these two treatments. Although, green cover percentage and seeds per pod in 301 were higher than those in Jam, but in other cases their response to water limitation was almost similar. All traits, except the number pods per plant, were noticeably lower for Pirooz compared to Jam and 301 cultivars. Green cover percentage showed the highest correlation with the grain yield. This study revealed that among phenological stages of chickpea, pod formation is the most sensitive to water deficit, and that under water limitation conditions chickpea yield could be improved by irrigation at this stage.
M.. Toorchi, S. Aharizad, M. Moghaddam, F. Etedali, S. H. Tabatabavakil,
Volume 11, Issue 40 (summer 2007)
Abstract
Sainfoin in believed as an important forage crop regarding its suitable agronomical characteristics and feeding livestock. Evaluation of general combining ability is a critical preliminary stage before selection of suitable parent and production of synthetic varieties. Thirty six sainfoin landraces which have been collected from different parts of Iran were grown in 2000 in a randomized complete block design (RCBD) with 24 replications as a polycross nursery. The resulting polycrosses were sown in 2001 in a triple lattice design. Characters such as fresh forage yield per plot based on unit length, fresh forage yield per plant, and dry forage yield for each cutting stage and for the whole season were measured. Also a yield index for the two first cuttings and forage palatability for the second cutting were determined. Results showed that there was no significant difference between partial blocks within each replication and therefore data was analyzed based on RCBD. High heritability was observed for forage palatability, yield index, and fresh forage yield per plant. So selection can be made to improve forage yield and palatibility in sainfoin. In terms of general combining ability, six landraces for fresh forage yield, six landraces for dry forage yield, nine landraces for yield index, and ten landraces for palatibility showed high estimates. The lanraces having highest amounts of general combining ability for each variable can be used as suitable parents to produce synthetic varieties of sainfoin.
