Naslov
Inheritance as a factor influencing phosphorus, potassium and magnesium status in corn (Zea mays L.) plants

Autori
Brkić, Ivan ; Kovačević, Vlado ; Josipović, Marko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
IXth International Colloquium for the optimization of plant nutrition / Martin-Prevel, P ; Baier, J. - Prag, 1996, 360-362

Skup
IXth International Colloquium for the optimization of plant nutrition

Mjesto i datum
Prag, Češka Republika, 08.09.1996. - 15.09.1996

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
inheritance ; phosphorus ; potassium ; magnesium ; corn

Sažetak
Corn inbred lines of different origin were grown on drained gleysol under soil stress induced by K deficiency. The field trial was conducted in randomized block design (four replications, exp. plot 18.2m2). The ear-leaf samples were taken at beginning of the silking stage. Choice of six inbred lines for chemical analyses was made based their different degree of lodging tolerance: the group A (susceptible inbred lines) = Os86-39, Os84-44 and Os84-49 ; the group B (tolerant inbred lines) = Os89-9, Os1-44 and Os30-8. Depending on inbred line, the ear-leaf composition (on dry matter basis) at silking stage was as follows: from 0.41% K to 0.62% K (acute K deficiency), from 0.95% Mg to 1.46% Mg and from 0.44% P to 0.69% P. In general, the group A was less tolerant to soil stress (grain yield: 0.88t/ha ; lodging at maturity stage: 43%) compared to the group B inbred lines (1.35 t/ha and 6%). Although low connection was found between the ear-leaf composition on level of inbred line, different degree of soil stress tolerance of these two groups could be associated with their ear-leaf status: in mean 0.46%K and 0.55% K, 1.10% Mg and 1.26% Mg, 0.50% P and 0.62% P, for the group A and the group B, respectively.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA