Za intenzivno gajenje hibrida kukuruza neophodno je, pored komponenti prinosa i drugih agronomski važnih osobina biljke, za objektivnu ocenu njihovih. Ministri Evropske unije odobrili su gajenje kontroverznog genetski modifikovanog novog roda kukuruza, TC američke kompanije DuPont Pioneer. S druge strane, domaće životinje troše tokom uzgoja velike količine semena kukuruza, što sa obzirom na ograničen zemljišni fond obično znači učestalo gajenje.
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Grain moisture content at harvest was highest in medium-late hybrids HY10 and HY11, with HY11 having the highest average value for the trait. Weed Science46 2 Apart from producing lower average yields, FAO and hybrids showed higher yield stability as compared to the other hybrids tested.
Western corn rootworm WCR appeared in Serbia in the late 80’s and quickly spread, causing increasing losses. Help Center Find new research papers in: However, this concept is of less importance to breeders and agronomists, who prefer genotypes with high yields and the potential to respond positively to agronomic inputs and favourable environmental conditions Becker, The lowest highly significant bi value was detected in HY02, and the value closest to the average in HY Poljoprivredni fakultet, doktorska disertacija.
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Weed Technology9, str. In terms of stability parameters, HY05 was comparable to the medium-early hybrids, with its grain yields at certain locations corresponding to those of late-season hybrids. FAO group hybrids, being more stable, can be recommended for less favourable agroenvironmental conditions including low-intensity cultural operations and stressful environments. Weed Sci46, str. The medium-early hybrids HY03 and HY01 showed significant deviations from regression, and negative values were observed in most other hybrids.
Where Kuluruza We Stand? Moreover, if the regression coefficient does not show significant differences across genotypes, regression lines can be grouped, with only deviation from regression being used as a stability parameter for genotype classification.
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The significance of hybrid x environment interaction for 1,kernel weight was also reported by Mann et al. Weed Res35, str. Zemlodelie1, str.
Journal of Hill Research 9 1 This paper offers a review of investigation on project “Maize breeding for high yield and quality of grain and biomass”, No B, financed by Ministry of Science and Environment Protection, Serbia and Montenegro. The behaviour of most hybrids regarding this parameter was not uniform; hence, the bi value showed inconsistency, particularly across years.
Becker and Leon established a biological or static concept of stability under which a stable genotype displays a minimal variance for yield, for instance across different environments.
The association between lower average values of a particular trait and greater than average stability was also observed in ear length. Users should refer to the original published version of the material for the full abstract. Crop Science, 28, Ecological Applications3 1: Click here to sign up. Plant Breeding,1— With the exception of HY08 and HY10, the other hybrids showed negative values.
OPLEMENJIVANJE KUKURUZA NA PRINOS I KVALITET.
Due to their more favourable stability parameter values, medium-early hybrids can be recommended for low-intensity cultural practices and stressful environments. Radiation-use efficiency and grain yield.
Significant differences in the trait were observed between hybrids as well as between locations.
Conclusion Significant differences in grain yield, grain moisture content at maturity, 1,kernel weight and ear length were observed between hybrids, as well as between locations. No significant differences were found between the regression coefficients for all hybrids in the first year and the average value. Measurement methods and problems related to plant density.
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At all locations, the lowest value was found in HY01 Table 3. Maydica37, str. AMMI analysis of factorial designs. Sowing was conducted in the first half of April in both years at all locations.
Most medium-early hybrids give low yields, along with generally favourable values of stability parameters i. Parametri stabilnosti prinosa zrna i komponenti prinosa hibrida kukuruza razlicitih FAO grupa zrenja. The regression coefficient of HY07 was closest to the mean value 1. However, remote access to EBSCO’s databases from non-subscribing institutions is not allowed if the purpose of the use is for commercial gain through cost reduction or avoidance for a non-subscribing institution.
The same authors underlined that regression analysis, although widely used in the previous period, provides useful information on genotype stability. Zbornik radova Instituta za ratarstvo i povrtarstvo, Novi Sad, 33, Grain yield and its components were assessed in 11 maize hybrids with different lengths of growing season FAO maturity groups using analysis of variance and regression analysis at three different locations in Western Serbia.
Crop Science, 26, Eberhart and Russell described them as potentially ideal hybrids, since they maintain good performance under unfavourable growing conditions. Introduction Identification of genotypes with a high potential for yield and stability across environments is an essential task in plant breeding.
With the exception of HY01 showing significant deviations from regression, HY09; HY11 in the first and second years, the other hybrids had non-significant deviations. Crop Science 6, Regardless of maturity group, HY01 and HY11 with low values for this trait in almost all years had significantly lower regression coefficient values.
Current knowledge and new research targets.
Genetika, 45 2 Most hybrids in the second year showed significant deviations from regression for grain moisture content.