RESEARCH REGARDING THE INFLUENCE OF THE CALIBRES AND THE SEEDS TREATMENT ON THE SEEDS GERMINATION IN INTERACTION WITH THE GENOTYPE

This paper deals with the study of the calibration influence and the treatment of the Topsin 70 product on seeds germination at the main hybrids cultivated in Transylvania. The determination of the germination that aim to the establishment of the seeds number , expressed in percents of pure seed, capable to produce some normal germs in lab condition , was appreciated through 2 indices: the germinative capacity and the germinative energy.. The determination of the germinative faculty and energy was made in 4 repetitions of 100 seeds and germination layer was the paper of industrial filter, made from cellulose 100%. The determinations were made twice, after 4 days for the determination of germinative energy and after 7 days for the one of germinative capacity.. In order for the germination to derive normally it was followed the fact that the humidity of the germination layer should be sufficient in every moment without being in excess. The research was made within the field crops productin laboratory of the University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca in 2007 and 2008 and the biological material taken for study was created at SCDA Turda from hybrids that were in production and in perspective, namely: TURDA 201 - triliniary hybrid, semiearly created at SCDA Turda, group FAO 340, TURDA 200 - hybrid double early, registered in 1976,rewritten in the Official Cataloque in 2000 and TURDA 165 - triliniary hybrid, early belonging to the group FAO 270. The obtained results show us that for the same calibre of the seed the germinative energy presents significant differences during the years with favourable conditions of plants maturation and values significantly higher at the seed treated with the fungicid Topsin