Drought stress responses of alfalfa (Medicago sativa L.) breeding populations (CROSBI ID 622586)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Tucak, Marijana ; Popović, Svetislav ; Čupić, Tihomir ; Krizmanić, Goran
engleski
Drought stress responses of alfalfa (Medicago sativa L.) breeding populations
The objectives of this research were to determine the effect of drought stress on yield in 23 alfalfa breeding populations/cultivars, to evaluate the relationships between long-term alfalfa yields in second and third year of production and total precipitation during the alfalfa growing season, to screen and select breeding populations with high yield potential in drought conditions. The study was conducted in two consecutive dry years (2011 and 2012) at the experimental field of the Agricultural Institute Osijek. The yields of green mass and dry matter were determined in the second and third growing seasons, where in each year of the investigation experiment was cut off five times. Stressful conditions caused by drought resulted in reduced yields in most of the populations of alfalfa, but were substantially less than the losses that drought can cause in most other crops. It was confirmed that alfalfa has high ability to tolerate drought by evaluating the relationships between long-term yields of established alfalfa (in second and third growth season) and total precipitation during the growing season. Breeding population ABP 13 obtained the highest average yields of green mass and dry matter during two consecutive dry years. Populations ABP 8, 3, 11 and 17 had high yields. Listed populations showed high yield potential and stability under drought stress and presented valuable genetic resources for our future breeding work.
alfalfa; drought; forage yield; breeding population; selection
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Podaci o prilogu
106-107.
2015.
objavljeno
Podaci o matičnoj publikaciji
Book of abstracts of the 50th Croatian & 10th International Symposium on Agriculture
Pospišil, Milan
Zagreb: Agronomski fakultet Sveučilišta u Zagrebu
978-953-7878-31-3
Podaci o skupu
50th Croatian & 10th International Symposium on Agriculture
poster
16.02.2015-20.02.2015
Opatija, Hrvatska