Naslov
Reakcija oplemenjivačkih populacija lucerne (Medicago sativa L.) na sušne uvjete
(Drought stress responses of alfalfa (Medicago sativa L.) breeding populations)

Autori
Tucak, Marijana ; Popović, Svetislav ; Čupić, Tihomir ; Krizmanić, Goran

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of abstracts of the 50th Croatian & 10th International Symposium on Agriculture / Pospišil, Milan - Zagreb : Agronomski fakultet Sveučilišta u Zagrebu, 2015, 106-107

ISBN
978-953-7878-31-3

Skup
50th Croatian & 10th International Symposium on Agriculture

Mjesto i datum
Opatija, Hrvatska, 16.02.2015. - 20.02.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
lucerna; suša; prinos krme; oplemenjivačka populacija; izbor
(alfalfa; drought; forage yield; breeding population; selection)

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA