دراسة الكفاءة الإنتاجية لعدد من أصناف القمح الطرية بنظام الري التكميلي

الملخص EN

A field experiment was carried out at the Crop Research Station, Faculty of Agriculture, University of Tripoli, 5km east of Tripoli, during the growing season 2017/2018.

To study and evaluate the performance of a number of bread wheat varieties released from the Agricultural Research Center in Libya during multiple time stages (Aboaljoud, Abolkeir, Mekawe, Sebha, Zalaf, Massoud 7, Germa, Bohot-210) by analysing characteristics of growth and production in season.

The experiment was designed according to the statistical design of Randomized Complete Block Design (RCBD) with three replicates for each variety.

The results showed that there were significant differences among studied cultivars in the main key attributes at the probability level of 5%, which are: germination percentage (%), plant height (cm), number of fertile tillers per plant, peduncle and awn lengths (cm), spikes weight per plant and per square meter (g), days to heading 50%, days to maturity 50%, main spike length and weight, number of spikelet’s and grain per main spike.

number and weight of grains per plant, 1000- grain weight (g), biological yield (t ha-1 ), grain yield (t ha-1 ) and harvest index (%).

The cultivar Bohot-210 was superior in most of the studied traits, it gave the highest biological yield (10.15 t ha-1 ) and grain yield (4.26 t ha1 ), While, the overall experiment average of biological yield and grain yield was 8.538, 2.90 t ha-1 , respectively.

The cultivar Zalaf was superior in 1000- grain weight (59.33g) and harvest index (50.33%) Compared to the original cultivar (Landraces) Mekawe which recorded a remarkable decline in most of the studied traits as biological yield was (7.37 t ha-1 ), grain yield (1.70 t ha-1 ), 1000- grain weight (29.76 g) and harvest index (24.33 %).

It was concluded from this study that the two cultivars the modern Bohot-210 and the ancient Zalaf are the best performing cultivars and adapted to the study area.

It is also conceivable to increase the research and Auditing for several seasons and in different environments that representing the production locations in the country, to confirm the results especially since that the devise of varieties in the Agricultural Research Center varies from one environment to another.