Durum wheat quality under Mediterranean conditions as affected by N rate, timing and splitting, N form and S fertilization

Garrido‐Lestache, Elvira; López‐Bellido, Rafael J.; López‐Bellido, Luis

doi:10.1016/j.eja.2004.12.001

Cited by 126 publications

(101 citation statements)

References 32 publications

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“…The fact that nitrogen is one of the most important elements in increasing the nitrogen content of seed, it seems that increased application of nitrogen fertilizer caused increases in the accumulation of this element in grain. These results are similar to the results of other researchers who reported that nitrogen concentration in plants increased with increasing nitrogen fertilizer applications (Garrido-Lestache et al, 2005).…”

Section: Nitrogen Contentsupporting

confidence: 83%

Improvement effect of nitrogen fertilizer and plant density on wheat (Triticum aestivum L.) seed deterioration and yield

et al. 2017

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In order to study the effect of seed deterioration, plant density and nitrogen fertilizer application on yield, yield components and somequalitative traits of wheat, a field experiment was conducted in Golestan province of Iran, as split factorial in the randomized completeblock design, with four replications in two growing seasons, 2014-2015 and 2015-2016. The experimental treatments included seedquality at 4 levels (control, 15, 30, and 45 hours of accelerated deterioration), plant density at two levels (350 and 420 plants/m) and nitrogen consumption at 3 levels (recommended rate, 15 and 30 percentages higher than the recommended rate, i.e., 125, 143.75, and162.5 kg N fertilizer ha, respectively). All quantitative traits (plant height, spike length, number of seeds per spike, number of spikeletsper spike, weight of 1000 seed, grain yield, straw yield, biological yield and harvest index) and quality traits (yield and protein content,nitrogen content, yield and starch content) were significantly different in different years. Application of recommended rate of nitrogenfertilizer in the first and the second year resulted in the highest average of number of seeds per spike and spike length. The highestgrain yield was achieved in the recommended and 30% higher than the recommended application rate of nitrogen fertilizer (4061.9 and4166.3 kg/ha, respectively) in the second year. Seed deterioration caused a significant reduction in yield and the yield components, sothe highest level of seed deteriorations in the first and the second years decreased 34.11 and 22.63% of the grain yield compared tothe control treatment. The highest protein content was achieved in the second year with the application of nitrogen 30% higher than therecommended rate (with a mean of 623.6 kg/ha), which increased by about 23% compared to the overall average. Seed deteriorationreduced the starch content, so that the highest mean was in non-deterioration in the second year (68.13%), which increased by 10%compared with that of the overall average. The lowest starch content was achieved at the highest level of deterioration (45 hours) in thefirst year (55.63%). In general, the results indicated that seed deterioration had negative effects on quantitative and some qualitativetraits, but the application of more nitrogen fertilizer and higher plant density reduced the negative effects of deterioration and improvedgrain yield and quality.

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Section: Nitrogen Contentsupporting

confidence: 83%

Improvement effect of nitrogen fertilizer and plant density on wheat (Triticum aestivum L.) seed deterioration and yield

et al. 2017

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“…In agreement with the results found by GarridoLestache et al [26], Pagliai et al [21] and De Vita et al [7], the higher content of OM in the 1-yr wheat meadow under rainfed than others rotations, support high soil fertility for increasing the content of kernel CP (Figures 1(a) and 1(b)). …”

Section: Effect Of Wheat Forage Crop Rotations On Om Of Topsoilsupporting

confidence: 82%

Cereal-forage crop rotations and irrigation treatment effect on water use efficiency and crops sustainability in Mediterranean environment

Martiniello¹

2012

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“…Drought stress and high temperatures during grain filling can reduce the mean kernel weight by decreasing daily rates of translocation of carbohydrate reserves from the vegetative organs of the plant to the grain [66]. The N nutrition is largely considered as the primary factor influencing both the production of high yields and the quality of the grain, as it influences protein concentration [67]. The observed spatial GPC and GPC yield patterns in this study illustrate the significant influence that soil nutrient and water patterns have over the five winter wheat growth stages.…”

Section: Discussionmentioning

confidence: 99%

Spatial Variability Analysis of Within-Field Winter Wheat Nitrogen and Grain Quality Using Canopy Fluorescence Sensor Measurements

Song

Yang

et al. 2017

Remote Sensing

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Wheat grain protein content (GPC) is a key component when evaluating wheat nutrition.It is also important to determine wheat GPC before harvest for agricultural and food process enterprises in order to optimize the wheat grading process. Wheat GPC across a field is spatially variable due to the inherent variability of soil properties and position in the landscape. The objectives of this field study were: (i) to assess the spatial and temporal variability of wheat nitrogen (N) attributes related to the grain quality of winter wheat production through canopy fluorescence sensor measurements; and (ii) to examine the influence of spatial variability of soil N and moisture across different growth stages on the wheat grain quality. A geostatistical approach was used to analyze data collected from 110 georeferenced locations. In particular, Ordinary Kriging Analysis (OKA) was used to produce maps of wheat GPC, GPC yield, and wheat canopy fluorescence parameters, including simple florescence ratio and Nitrogen Balance Indices (NBI). Soil Nitrate-Nitrogen (NO 3 -N) content and soil Time Domain Reflectometry (TDR) value in the study field were also interpolated through the OKA method. The fluorescence parameter maps, soil NO 3 -N and soil TDR maps obtained from the OKA output were compared with the wheat GPC and GPC yield maps in order to assess their relationships. The results of this study indicate that the NBI spatial variability map in the late stage of wheat growth can be used to distinguish areas that produce higher GPC.

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Durum wheat quality under Mediterranean conditions as affected by N rate, timing and splitting, N form and S fertilization

Cited by 126 publications

References 32 publications

Improvement effect of nitrogen fertilizer and plant density on wheat (Triticum aestivum L.) seed deterioration and yield

Improvement effect of nitrogen fertilizer and plant density on wheat (Triticum aestivum L.) seed deterioration and yield

Cereal-forage crop rotations and irrigation treatment effect on water use efficiency and crops sustainability in Mediterranean environment

Spatial Variability Analysis of Within-Field Winter Wheat Nitrogen and Grain Quality Using Canopy Fluorescence Sensor Measurements

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