Responses of grain composition traits to high plant density in irrigated maize hybrids

Josipović, Marko; Jambrović, Antun; Plavšić, Hrvoje; Liović, Ivica; Šoštarić, Jasna

doi:10.1556/crc.35.2007.2.96

Cited by 3 publications

(5 citation statements)

References 8 publications

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“…It was concluded from the results that the flint and semi-dent types in the early maturing FAO 200 group had higher protein and oil contents, but lower starch contents, while the dent hybrids in the FAO 500 group, which have larger endosperms, have greater starch contents and a lower ratio of protein and oil. In agreement with Prokszáné Paplogó et al (1995), Gyenesné et al (2001Gyenesné et al ( , 2002 and Josipovic (2007) it was observed that in wet years, or as the result of irrigation, more starch was accumulated in the kernels than in dry years. In contrast to the opinion of Pásztor (1998) it was thus found that the year played an important role in determining the grain quality parameters of maize.…”

Section: Discussionsupporting

confidence: 86%

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Comparison of the grain yield and quality potential of maize hybrids in different FAO maturity groups

Hegyi

Pók

Berzy

et al. 2008

Acta Agronomica Hungarica

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A total of 96 hybrids from four maturity groups (FAO 200, 300, 400, 500) were tested in two years (2006, 2007) at two locations in Hungary (Martonvásár, Szarvas). Considerable differences were found between the years for the grain yield per hectare and for the grain quality parameters. In 2006 record yields were achieved at both locations, averaging 11.61 t/ha in Martonvásár and 12.20 t/ha in Szarvas, due primarily to well-timed irrigation in Martonvásár and to good rainfall supplies in Szarvas. In 2007 both locations suffered from drought, with less rainfall than average during the critical months of the vegetation period, which was partially compensated for by irrigation in Martonvásár, giving a yield average of 5.96 t/ha, while the hybrids grown in Szarvas had a yield average of 5.06 t/ha. The grain quality parameters exhibited a close correlation with the grain yield in the individual FAO maturity groups. Hybrids of the flint type, which have a short vegetation period, had high protein and oil contents, but the yield averages were low due to the slower rate of starch incorporation. Hybrids of the dent type have a longer vegetation period and more intense carbohydrate accumulation, but low protein and oil contents. In wet years and locations there was a higher rate of starch accumulation, while dry years are favourable for protein and oil accumulation. The Bravais correlation coefficient was calculated between the yield and the grain quality parameters (averaged over years, locations and varieties). A positive, moderately strong correlation (0.68) was found between the yield and the starch content, a negative, moderately strong correlation (-0.52) between the yield and the protein content, and a loose negative correlation (-0.19) between the yield and the oil content.

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Section: Discussionsupporting

confidence: 86%

“…In wet years maize hybrids had lower protein contents than in dry years (Prokszáné Paplogó et al, 1995;Gyenesné-Hegyi et al, 2001, 2002. Irrigation had a significant effect on the protein and oil concentrations (Josipovic et al (2007).…”

Section: Introductionmentioning

confidence: 97%

Comparison of the grain yield and quality potential of maize hybrids in different FAO maturity groups

Hegyi

Pók

Berzy

et al. 2008

Acta Agronomica Hungarica

View full text Add to dashboard Cite

show abstract

“…It was concluded from the results that the flint and semi-dent types in the early maturing FAO 200 group had higher protein and oil contents, but lower starch contents, while the dent hybrids in the FAO 500 group, which have larger endosperms, have greater starch contents and a lower ratio of protein and oil. In agreement with Prokszáné et al (1995), Hegyi et al (2007) and Josipovic et al (2007) it was observed than in wet years, or as the result of irrigation, more starch was accumulated in the kernels than in dry years. In contrast to the opinion of Pásztor (1998) it was thus found that the year played an important role in determining the grain quality parameters of maize.…”

Section: Discussionsupporting

confidence: 91%

“…In wet years maize hybrids had lower protein contents than in dry years (Gyenesné-Hegyi et al, 2001;. Irrigation had a significant effect on the protein and oil concentrations (Josipovic et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Proceedings of the 9th Alps-Adria Scientific Workshop, 12–17 April 2010, Špičak, Czech Republic – PLANT RELATIONS

2010

Növénytermelés

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The interactions of ecological conditions, genotypes and agrotechnical elements determine the yield quantity, quality and stability in cereal (wheat, maize) production. The applied input-level can modify the adaptive capacity of crop models to ecological conditions and resilience of agro-ecosystems. The effects of agrotechnical elements (crop rotation, fertilization, irrigation, crop protection, plant density) were studied in the long-term experiment on chernozem soil. Our scientific results proved that the high yields and good yieldstability were obtained in the input-intensive crop models, so these models had better adaptive capacity and resilience. Maize had lower ecological adaptive ability than winter wheat. The optimalization of agrotechnical elements reduces the harmful climatic effects so we can increase the resilience of cereals agro-ecosystems. The yields of wheat varied between 2 and 7 t ha -1 in extensive and 8 and 10 t ha -1 in intensive crop models and the yields of maize ranged between 2 and 11 t ha -1 and 10 and 15 t ha -1 , respectively.

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“…Jurgens et al (1978) found that drought increased the protein concentration, but decreased oil concentration. Irrigation consistently affected grain yield across the years and protein content in dry year according to Josipović et al (2007), also. Maize is relatively tolerant to water stress during the vegetative stage, very sensitive during tasseling, silking and pollination and moderately sensitive during grain filling (Shaw, 1988).…”

Section: Introductionmentioning

confidence: 91%

Proceedings of the 9th Alps-Adria Scientific Workshop, 12–17 April 2010, Špičak, Czech Republic – WATER AND ENVIRONMENT

2010

Növénytermelés

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Mutagenicity is a key biological effect environmental contaminants may exert. In our examinations groundwater samples -originating mainly from cereal fields -were analyzed. Mutagenicity was determined by application of the somatic mutation and recombination test (SMART). The test utilizes Drosophila melanogaster females carrying mwh (multi wing hair) and males carrying flr (flare) recessive marker mutations. Homozygote mwh cells grow 3-7 hairs in bundles, while flr homozygote cells form a single curly hair. Treated larvae derive from the hybridization of such parents. Larvae surviving the exposition of mutagens and developing into imagoes have possible mosaic patches on wings. As a new approach towards the practical application of the SMART test, the first step was to survey most frequent pesticides in Hungarian ground water samples. In parallel, aquatic toxicity biotests were carried out using the Daphina magna Straus. The most contaminated water samples, containing residues of acetochlor, atrazine, diazinon, metolachlor, terbutryn and/or trifluralin at levels of 0.18 to over 1000 ng ml -1 showed acute toxicity in the Daphnia magna test, but no mutagenic effect (mutation frequency was <10 -4 ) in the SMART test.

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Responses of grain composition traits to high plant density in irrigated maize hybrids

Cited by 3 publications

References 8 publications

Comparison of the grain yield and quality potential of maize hybrids in different FAO maturity groups

Comparison of the grain yield and quality potential of maize hybrids in different FAO maturity groups

Proceedings of the 9th Alps-Adria Scientific Workshop, 12–17 April 2010, Špičak, Czech Republic – PLANT RELATIONS

Proceedings of the 9th Alps-Adria Scientific Workshop, 12–17 April 2010, Špičak, Czech Republic – WATER AND ENVIRONMENT

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