February 2010

Epistasis and genotype-by-environment interaction of grain yield related traits in durum wheat

Genetic control of the number of heads per plant, spikelets per spike and grains per spike was studied in two durum wheat (Triticum durum Desf.) crosses, Inrat 69/Cocorit71 and Karim/Ben Bechir, respectively. Separate analyses of gene effects were done using means of four generations (parents P1 and P2, F1, F2, and the two reciprocal BC1) at two sites. A three-parameter model was inadequate to explain all...

Author(s): Bnejdi Fethi and El Gazzah Mohamed

February 2010

Effect of pre-treatment on isolated microspores culture ability in durum wheat (Triticum turgidum subsp. durum Desf.)

The production of double haploids through androgenesis is used by breeders to produce homozygous lines in a single generation. Androgenesis can be achieved by isolated microspore culture, which, however, allows the production of green haploids with a very low efficiency. In order to improve the overall green haploid regeneration in durum wheat, we compare the efficiency of eight different...

Author(s): O. Slama Ayed, J. De Buyser, E. Picard, Y. Trifa and H. Slim Amara