Published in Scientific Bulletin. Series F. Biotechnologies, Vol. XXII
Written by Gabriel Florin ANTON, Călina Petruţa CORNEA, Maria JOIȚA PĂCUREANU, Luxiţa RÎȘNOVEANU, Mihaela POPA, Alexandru BRAN, Eliza SAVA, Florentina SAUCA

There are many problems due to the climat changes, in the Romanian agriculture. The water deficit and high or low temperatures, reduce the yield level. The adaptability of sunflower to the environmental conditions, with the purpose to obtain hybrids with high seed yield stability, in all ecological cultivated areas involves a good resistance to drought and low temperatures, specially in germination time. In our research work we have used different sources from our sunflower germplasm collection. Some of our best elite lines have been introduced in a process of improvement of resistance to drought. Each generation of selection was planted in drought natural conditions (missing water in soil and high air temperature). All generations of selection were tested for resistance to low temperatures in germination and emergence time. There have been selected the more tolerant ones.

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