According to regional reports on climate, more frequent and severe droughts and floods are already apparent. Modern maize breeding for different purposes (e.g. drought tolerance) emphasizes the importance for improved maize ability to withstand adverse environmental conditions. Genotypes with drought tolerance obtain high grain yield under optimal conditions and lower, but stable yield under dry environmental conditions. Field testing was conducted in 2014, on twenty-three maize inbred lines differing in drought tolerance. The inbreds were evaluated in respect to morphological traits (plant and ear height, total number of leaves, number of leaves above uppermost ear, ear leaf length and width), yield components and grain yield per plant. The experiment was set up according to RCB design with two replications. To simulate water stress, two plant densities were applied. According to Principal Component Analysis and cluster analysis, five inbred lines (T1, T2, T4, T8 i T15) performed the ...highest stability in both experimental conditions. Those inbreds could be used as a source for drought tolerance in breeding programs.
Regionalna istraživanja klimatskih promena ukazuju na sve učestaliju pojavu promena u režimu padavina i temperatura. Za potrebe savremene selekcije za različite osobine (npr. tolerantnost prema suši), poboljšana sposobnost kukuruza da izdrži nepovoljne uslove spoljašnje sredine je esencijalna. U optimalnim uslovima, genotipovi tolerantni na sušu ostvaruju visok prinos, dok u uslovima vodnog deficita u kombinaciji sa visokim temperaturama vazduha ostvaruju niži, ali stabilan prinos. U poljskim ogledima 2014, izvršena je evaluacija dvadeset tri inbred linije kukuruza različite tolerantnosti na stres suše, praćenjem morfoloških osobina (visine biljke i gornjeg klipa, ukupnog broja listova i broja listova iznad gornjeg klipa, dižine i širine klipnog lista), komponenata prinosa i prinosa zrna po biljci. Ogled je sejan po kompletno randomiziranom blok dizajnu, u dva ponavljanja. Za simulaciju vodnog deficita, ogled je sejan u dve gustine. Poređenjem rezultata iz obe eksperimentalne gustine, ...dobijenih analizom glavnih komponenata i klaster analizom, pet samooplodnih linija kukuruza (T1, T2, T4, T8 i T15) su pokazale najveću stabilnost i mogu se smatrati poželjnim izvorima tolerantnosti prema suši za potrebe oplemenjivanja na ovo svojstvo.
Keywords:
climate changes / grain yield / growth / inbred line / Zea mays L / inbred linija / klimatske promene / prinos zrna / rast / Zea mays L
Source:
Selekcija i semenarstvo, 2015, 21, 2, 1-10
Publisher:
Društvo selekcionara i semenara Republike Srbije, Beograd
TY - JOUR
AU - Kravić, Natalija
AU - Babić, Vojka
AU - Ristić, Danijela
AU - Srdić, Jelena
AU - Anđelković, Violeta
PY - 2015
UR - http://rik.mrizp.rs/handle/123456789/596
AB - According to regional reports on climate, more frequent and severe droughts and floods are already apparent. Modern maize breeding for different purposes (e.g. drought tolerance) emphasizes the importance for improved maize ability to withstand adverse environmental conditions. Genotypes with drought tolerance obtain high grain yield under optimal conditions and lower, but stable yield under dry environmental conditions. Field testing was conducted in 2014, on twenty-three maize inbred lines differing in drought tolerance. The inbreds were evaluated in respect to morphological traits (plant and ear height, total number of leaves, number of leaves above uppermost ear, ear leaf length and width), yield components and grain yield per plant. The experiment was set up according to RCB design with two replications. To simulate water stress, two plant densities were applied. According to Principal Component Analysis and cluster analysis, five inbred lines (T1, T2, T4, T8 i T15) performed the highest stability in both experimental conditions. Those inbreds could be used as a source for drought tolerance in breeding programs.
AB - Regionalna istraživanja klimatskih promena ukazuju na sve učestaliju pojavu promena u režimu padavina i temperatura. Za potrebe savremene selekcije za različite osobine (npr. tolerantnost prema suši), poboljšana sposobnost kukuruza da izdrži nepovoljne uslove spoljašnje sredine je esencijalna. U optimalnim uslovima, genotipovi tolerantni na sušu ostvaruju visok prinos, dok u uslovima vodnog deficita u kombinaciji sa visokim temperaturama vazduha ostvaruju niži, ali stabilan prinos. U poljskim ogledima 2014, izvršena je evaluacija dvadeset tri inbred linije kukuruza različite tolerantnosti na stres suše, praćenjem morfoloških osobina (visine biljke i gornjeg klipa, ukupnog broja listova i broja listova iznad gornjeg klipa, dižine i širine klipnog lista), komponenata prinosa i prinosa zrna po biljci. Ogled je sejan po kompletno randomiziranom blok dizajnu, u dva ponavljanja. Za simulaciju vodnog deficita, ogled je sejan u dve gustine. Poređenjem rezultata iz obe eksperimentalne gustine, dobijenih analizom glavnih komponenata i klaster analizom, pet samooplodnih linija kukuruza (T1, T2, T4, T8 i T15) su pokazale najveću stabilnost i mogu se smatrati poželjnim izvorima tolerantnosti prema suši za potrebe oplemenjivanja na ovo svojstvo.
PB - Društvo selekcionara i semenara Republike Srbije, Beograd
T2 - Selekcija i semenarstvo
T1 - Grain yield and phenotypic performances of maize inbreds under variable environmental conditions
T1 - Prinos i fenotipske karakteristike inbred linija kukuruza u promenljivim uslovima spoljašnje sredine
VL - 21
IS - 2
SP - 1
EP - 10
DO - 10.5937/SelSem1502001K
ER -
@article{
author = "Kravić, Natalija and Babić, Vojka and Ristić, Danijela and Srdić, Jelena and Anđelković, Violeta",
year = "2015",
abstract = "According to regional reports on climate, more frequent and severe droughts and floods are already apparent. Modern maize breeding for different purposes (e.g. drought tolerance) emphasizes the importance for improved maize ability to withstand adverse environmental conditions. Genotypes with drought tolerance obtain high grain yield under optimal conditions and lower, but stable yield under dry environmental conditions. Field testing was conducted in 2014, on twenty-three maize inbred lines differing in drought tolerance. The inbreds were evaluated in respect to morphological traits (plant and ear height, total number of leaves, number of leaves above uppermost ear, ear leaf length and width), yield components and grain yield per plant. The experiment was set up according to RCB design with two replications. To simulate water stress, two plant densities were applied. According to Principal Component Analysis and cluster analysis, five inbred lines (T1, T2, T4, T8 i T15) performed the highest stability in both experimental conditions. Those inbreds could be used as a source for drought tolerance in breeding programs., Regionalna istraživanja klimatskih promena ukazuju na sve učestaliju pojavu promena u režimu padavina i temperatura. Za potrebe savremene selekcije za različite osobine (npr. tolerantnost prema suši), poboljšana sposobnost kukuruza da izdrži nepovoljne uslove spoljašnje sredine je esencijalna. U optimalnim uslovima, genotipovi tolerantni na sušu ostvaruju visok prinos, dok u uslovima vodnog deficita u kombinaciji sa visokim temperaturama vazduha ostvaruju niži, ali stabilan prinos. U poljskim ogledima 2014, izvršena je evaluacija dvadeset tri inbred linije kukuruza različite tolerantnosti na stres suše, praćenjem morfoloških osobina (visine biljke i gornjeg klipa, ukupnog broja listova i broja listova iznad gornjeg klipa, dižine i širine klipnog lista), komponenata prinosa i prinosa zrna po biljci. Ogled je sejan po kompletno randomiziranom blok dizajnu, u dva ponavljanja. Za simulaciju vodnog deficita, ogled je sejan u dve gustine. Poređenjem rezultata iz obe eksperimentalne gustine, dobijenih analizom glavnih komponenata i klaster analizom, pet samooplodnih linija kukuruza (T1, T2, T4, T8 i T15) su pokazale najveću stabilnost i mogu se smatrati poželjnim izvorima tolerantnosti prema suši za potrebe oplemenjivanja na ovo svojstvo.",
publisher = "Društvo selekcionara i semenara Republike Srbije, Beograd",
journal = "Selekcija i semenarstvo",
title = "Grain yield and phenotypic performances of maize inbreds under variable environmental conditions, Prinos i fenotipske karakteristike inbred linija kukuruza u promenljivim uslovima spoljašnje sredine",
volume = "21",
number = "2",
pages = "1-10",
doi = "10.5937/SelSem1502001K"
}
Kravić, N., Babić, V., Ristić, D., Srdić, J.,& Anđelković, V.. (2015). Grain yield and phenotypic performances of maize inbreds under variable environmental conditions. in Selekcija i semenarstvo
Društvo selekcionara i semenara Republike Srbije, Beograd., 21(2), 1-10.
https://doi.org/10.5937/SelSem1502001K
Kravić N, Babić V, Ristić D, Srdić J, Anđelković V. Grain yield and phenotypic performances of maize inbreds under variable environmental conditions. in Selekcija i semenarstvo. 2015;21(2):1-10.
doi:10.5937/SelSem1502001K .
Kravić, Natalija, Babić, Vojka, Ristić, Danijela, Srdić, Jelena, Anđelković, Violeta, "Grain yield and phenotypic performances of maize inbreds under variable environmental conditions" in Selekcija i semenarstvo, 21, no. 2 (2015):1-10,
https://doi.org/10.5937/SelSem1502001K . .
