Naslov
Inheritance of potassium, calcium and magnesium status in maize (Zea mays L.) plants

Autori
Brkić, Ivan ; Kovačević, Vlado ; Vujević, Stipe ; Kozumplik, Vinko

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

Izvornik
Plant nutrition - for sustainable food production and environment / Tadao, Ando - Tokyo : Kluwer Academic Publishers, 1997, 163-164

Skup
13th International Plant Nutrition Colloquium

Mjesto i datum
Tokyo, Japan, 13.09.1997. - 19.09.1997

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
inheritance ; maize ; potassium ; calcium ; magnesium

Sažetak
Six maize (Zea mays L.) inbred lines and their 30 single-cross hybrids were grown under field conditions on an eutric cambisol. Grain yields of the hybrids ranged from 7.3 to 11.2 t ha-1. Hybrids of the Os138-9 parent had the highest grain yield (mean of ten hybrids: 9.8 t ha-1), while inclusion of the ND246 inbred line as a parent resulted in lowest yields (mean 7.9 t ha-1). Depending on hybrid, nutrient composition of the ear-leaf at the silking stage ranged (mg g-1 on dry matter basis) from 17.3 to 24.2 for K, from 6.6 to 11.6 for Ca and from 4.9 to 9.0 for Mg. In general, ear-leaf nutrient status was under significant genetic influence. Also, a genetically-induced negative correlation between ear-leaf concentrations of K and Mg was found (r=-0.61, P<0.01). However, there was poor correlation between grain yield and nutrient status of corn, probably because of adequate soil fertility. A Similar investigation under stress conditions could also be more useful (for example, in K- deficient soils).

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA