Agronomic performance of durum wheat varieties in Le Kef, Tunisia
1998
Ben Amar, F. (National Inst. for Agricultural Research of Tunisia, Le Kef (Tunisia). Le Kef Station)
A field evaluation of three introduced (Om Rabi 3, Om Rabi 5 and Chen"s"/Altar) and three commercial durum-wheat (Triticum turgidum L. subsp. durum (Desf.) Husn.) varieties (Razzak, Karim and INRAT 69) was conducted at Le Kef location in the semiarid areas of Tunisia during the two seasons, 1991/92 and 1993/94. Findings revealed genotype variability for all characters except days to heading (1991/92) and kernels/spike (1993/94). Karim and Razzak gave the best grain yield in the 1991/92 favorable season with 1000-kernel weight and spikes/m as the main contributors. However, Om Rabi 3 and Om Rabi 5 were superior in grain yield in the 1993/94 unfavorable season, with the highest performance in plant height and spikes/m. Generally, INRAT 69 and Khiar 92 (Chen"s"/Altar) had worse performance in most of the agronomic characters in both seasons. Thus, Razzak and Karim can be retained as good-performing varieties in favorable seasons and Om Rabi 3 in unfavorable seasons. At the same time, they can be used in order to reduce the effect of climatic variation and improve grain yield stability in the semiarid areas of Tunisia
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