Pregled bibliografske jedinice broj: 382054
Genotypic differences among maize inbred lines in Phosphorus fertilizer responsiveness on soils differing in acidity
Genotypic differences among maize inbred lines in Phosphorus fertilizer responsiveness on soils differing in acidity // Communications in Soil Science and Plant Analysis, 40 (2009), 816-825 doi:10.1080/00103620802697822 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 382054 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Genotypic differences among maize inbred lines
in Phosphorus fertilizer responsiveness on
soils differing in acidity
Autori
Šimić, Domagoj ; Kovačević, Vlado ; Šimić, Branimir ; Rengel, Zed
Izvornik
Communications in Soil Science and Plant Analysis (0010-3624) 40
(2009);
816-825
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
genotypes ; maize ; P-fertilizer responsiveness ; soil acidity ; yield
Sažetak
Maize inbred lines, essential for producing commercial hybrid seed, are vulnerable to nutrient deficiencies and imbalances, particularly on acid soils where insufficient levels of plant-available phosphorus (P) exist. There is a need therefore to identify and develop maize inbred genotypes with a high P- utilisation capacity. The objective of this study was to assess the genotypic variation among maize inbred lines for responsiveness to P fertilizers (grain yield and P accumulation) on soils differing in acidity. Seven maize genotypes (elite inbred lines) were tested covering a range of genetic diversity representative of the U.S. Corn-Belt dent germplasm. They were grown for three years at two locations in Eastern Croatia on soils differing in pH by 1.6 units (water or 1 M KCl pH). Phosphorus amendments were applied in the first year of investigation: (i) control (0 P) and (ii) 380 kg P ha-1. The year × P fertilization interaction was highly significant for grain yield on both locations as well as for ear-leaf P concentration on acid soil, whereas the year × genotype interaction was significant for grain yield on both soils. Genotypic responsiveness to high P fertilization rates was in general greater on non-acid than on acid soil due to limitations imposed by acid stress. However, the line A672 had the same yield responsiveness to high P fertilization rates irrespective of soil acidity. The inbred Os84-44 had consistently the highest grain yield regardless of P fertilization rate and soil pH. Therefore, there is variation among maize inbred lines for responsiveness to high P fertilization rates on soils of different acidity. This variation may be due to differential tolerance to soil acidity and/or the interaction between acid soil tolerance and a response to P fertilization.
Izvorni jezik
Engleski
Znanstvena područja
Poljoprivreda (agronomija)
POVEZANOST RADA
Projekti:
MZOS-073-0000000-3592 - Optimiziranje primjene fungicida u proizvodnji sjemena. (Šimić, Branimir, MZOS ) ( CroRIS)
MZOS-073-0730463-0203 - Genetska analiza koncentracije minerala u zrnu kukuruza (Šimić, Domagoj, MZOS ) ( CroRIS)
MZOS-079-0730463-0447 - Prevladavanje stresa uzgoja kukuruza na kiselom tlu gnojidbom i oplemenjivanjem (Kovačević, Vlado, MZOS ) ( CroRIS)
Ustanove:
Poljoprivredni institut Osijek,
Fakultet agrobiotehničkih znanosti Osijek
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
