Naslov
Heredity impacts on phosphorus and potassium concentrations in maize

Autori
Kovačević, Vlado ; Šimić, Domagoj

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
IV Congress of The Serbian Genetic Society - Book of Abstracts / Mladenović-Drinić, Snežana ; Topisirović, Ljubiša - Beograd : Serbian Genetic Society, 2009, 215-215

ISBN
978-86-8710-03-02

Skup
IV Congress of The Serbian Genetic Society

Mjesto i datum
Tara, Srbija, 01.06.2009. - 05.06.2009

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
maize hybrids ; Phosphorus status ; Potassium status ; heredity

Sažetak
Twenty maize (Zeal mays L.) hybrids were grown under field conditions on acid (pH KCl = 4.77) hydromorphic soil (moderate supplies of available P and according AL-method: 7.91 P2O5 and 9.17 K2O/100 g) during the 2000 and 2001 growing seasons (4 replicates, plant density 71429 plants/ha, basic plot 7.0 m2 = one 10-m row). Considerable differences of P and K status in the ear-leaf at silking stage were found among the maize hybrids. For example, they were from 0.269 % to 0.465% P, as well from 1.56% to 2.45% K. The lower P concentrations were found in three maize hybrids (OsSK378, OsSK298 and OsSK382: mean 0.276% P), while in four hybrids they were considerably higher (Alpos, Bc278, OsK2-191 and Clarica: mean 0.382% P). In two maize hybrids were found K concentrations lower than 1.60% K (OsSK333 and Os298: mean 1.57% K), while in five hybrids they were above 2.00% K (Os395, RK1456, Podravec 36, Os332 and Alpos: mean 2.17% K). Agreement of the leaf composition among the hybrids (comparison the results for 2000 and 2001) was considerably higher for P (r = 0.816**) than for K (r = 0.493*). Yield agreement was also significant (r = 0.587**). In both years of testing, negative correlation between yields and P status was found (r = -0.529* and -0.739**, for 2000 and 2001, respectively), while relationship between K and yields was low (r = -0.246 and -0.170, respectively).

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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