New ZP Hybrid Selection Trends
Pravci selekcije novih ZP hibrida
Author
Filipovic, Milomir
Jovanovic, Zivota
Tolimir, Miodrag
Keywords
maizedrought
stability
yield
ZP hybrids
agro-environmental conditions
drydown
kukuruz
suša
stabilnost
prinos
ZP hibridi
agroekološki uslovi
otpuštanje vlage
Metadata
Show full item recordAbstract
This paper presents the newly released sixth generation of ZP maize
hybrids characterized by high and stable yields obtained under different agroenvironmental
conditions on soils with different natural fertility and production
capacity. The newly developed ZP hybrid genotypes have exhibited remarkable yield
stability and wide adaptability to different climatic conditions in numerous trials
throughout Serbia. These studies serve as the basis for recommendations to grow new
hybrids of FAO 300-600 maturity groups i.e. mid-early, middle maturity and mid-late
hybrids, which have a number of improved properties compared to the older generation
ZP hybrids.
The main properties of the new ZP hybrids are shorter growing season, higher
kernel drydown rate during maturation, excellent adaptability to adverse environmental
conditions (high drought tolerance), lower stalks with ears formed low on the plant,
resistance to lodging, causal agents of diseases and pests, etc.
Among the new hybrids, standouts include ZP 333, ZP 366, ZP 388, ZP 427, ZP
555, ZP 560, ZP 600, ZP 606, ZP 666, ZP 388, ZP 427, ZP 555, ZP 560, ZP 600, ZP
606 ZP 666, ZP 552b, etc. harvested for grain and ear for food and feed. The genetic
potential of the new high-yielding hybrids is above 20 t ha-1 dry kernel. Their yield is
14-46 t ha-1 in experiments and 14-15 t ha-1 by large producers and in favourable
seasons (2014). U radu je prikazana najnovija VI generacija ZP hibrida kukuruza koja se
odlikuje visokim i stabilnim prinosima gajenjem u različitim agroekološkim uslovima
na zemljišta različite prirodne plodnosti i proizvodne sposobnosti. Najnoviji genotipovi
ZP hibrida ispoljili su zavidnu stabilnost prinosa na široku adaptibilnost u različitim
klimatskim uslovima, koja je ispitana u brojnim ogledima širom Srbije. Na osnovu ovih
istraživanja data je preporuka za gajenje novih hibrida FAO grupe zrenja 300-600, tj. od
rednje ranih, srednje stasnih do srednje kasnih hibrida, koji imaju niz poboljšanih
osobina u odnosu na ZP hibride starijih generacija.
Glavne osobine novih ZP hibrida su: kraća vegetacija i brže otpuštanje vlage iz zrna
u procesu sazrevanja, odlična adaptibilnost na nepovoljne uslove spoljne sredine (visoka
tolerantnost na stresne uslove suše), niže stablo sa nisko formiranim klipovima,
otpornost na poleganje, prouzrokovače bolesti i štetočine, itd.
Posebno se izdvajaju novi hibridi: ZP 333, ZP 366, ZP 388, ZP 427, ZP 555, ZP
560, ZP 600, ZP 606, ZP 666, ZP 388, ZP 427, ZP 555, ZP 560, ZP 600, ZP 606, ZP
666, ZP 552b itd za kombajniranje u zrnu, berbu u klipu za ishranu ljudi i stoke.
Genetski potencijal novih, visokorodnih hibrida je iznad 20 t ha-1 suvog zrna, u
ogledima se ostvaruje 14-46 t ha-1, a kod boljih proizvođača i u rodnoj godini (2014),
14-15 t ha-1.