Effects of temperature and nitrogen supply on post-floral growth of wheat

measurements and simulations
  • 164 Pages
  • 1.84 MB
  • 2336 Downloads
  • English
by
Centre for Agricultural Publishing and Documentation , Wageningen [Netherlands]
Wheat -- Growth., Plants, Effect of nitrogen on., Plants, Effect of temperatur
StatementJ. Vos.
SeriesCentrum voor Landbouw publikaties en Landbow documentatie. Agricultural research report -- 911., Verslagen van landbouwkundige onderzoekingen -- 911.
The Physical Object
Pagination164 p. :
ID Numbers
Open LibraryOL14209421M
ISBN 109022007731
OCLC/WorldCa8102066

Get this from a library. Effects of temperature and nitrogen supply on post-floral growth of wheat: measurements and simulations. [J Vos]. interrelates post-floral gross photosynthesis, respiration, grain growth, uptake and redistribution of nitrogen, and leaf senescence.

According to model predictions final grain yield in the field (for Dutch climate and crop management) decreases by g-m per degree centigrade rise in temperature throughout grain filling (other input data fixed).Cited by: Warmth accelerates the rate of grain growth in wheat, but the temperature coefficient expressed as Q <sub>10</sub> decreases gradually between 10 and 25°C.

The rate of protein deposition responds more to temperature than the total grain dry matter accumulation rate. Warmth shortens the post-floral phase in : J. Vos. Effects of ambient temperature and/or nitrogen supply on post-floral growth of wheat were studied in experiments both under controlled conditions and outdoors; measurements included photosynthesis, respiration and analyses of water-soluble carbohydrates and of nitrogen by: 9.

Effects of ambient temperature and/or nitrogen supply on post-floral growth of wheat were studied in experiments both under controlled conditions and outdoors; measurements included photosynthesis.

The nitrogen effects were studied in field experiments inand Grain weight, protein content, gliadin content and composition were differently modified by temperature and N supply.

The % of proteins and gliadins in the flour increased with the increase of temperature and nitrogen supply, whereas the quantity of proteins or gliadins per grain were affected negatively by the high temperatures and positively by N fertilisation.

Effect of Various Doses of Nitrogen on the Growth and Yield of Two Wheat (Triticum aestivum L.) Cultivars Asghar Ali, M. Adil Choudhry, M. Asghar Malik, Rashid Ahmad* and Saifullah** Department of Agronomy, *Department of Crop Physiology, University of Agriculture, Faisalabad, Pakistan **Gandil Agricultural Company P.O.

Description Effects of temperature and nitrogen supply on post-floral growth of wheat PDF

BoxKhurtoum, Sudan. Effects of drought stress under two nitrogen rates on dry matter production and relative growth rate growth rate during growth periods of wheat. Crop Phenology and Grain Filling Patterns Drought stress and N treatments significantly altered the number of days from planting to anthesis and GFD (Table Table2 2).

By using simulation modelling, we were able to separate the impact of temperature from other factors and show that the effect of temperature on wheat production has been underestimated. Surprisingly, observed variations in average growing‐season temperatures of ±2 °C in the main wheat growing regions of Australia can cause reductions in.

Need for genetic improvement of nitrogen use efficiency (NUE) In the past 50 years there has been a marked increase in food productivity allowing for a significant decrease in world hunger, despite a doubling of the population (Godfray et al., ).However, it will be challenging over the next 50 years to increase crop productivity further in order to meet a growing population, due to a range.

Studies have characterized the effects of macronutrients, such as nitrogen and sulfur, on wheat grain protein [5,6] and the effect of copper deficiency on dough extensibility.

The macronutrient sulfur is known to play an important role in grain protein formation and nitrogen assimilation in winter wheat [ 8 ]. WHEAT GROWTH. The net carbon dioxide (CO 2) assimilation at the tissue level constitutes the basis for growth.

Many factors affect the net assimilation of CO 2, among others, the growth and development stage of the plant and environmental characteristics, such as light, nitrogen, temperature, CO 2. Winter Wheat Nitrogen Uptake Nitrogen Supply Growth Efficiency Crop Growth Rate These keywords were added by machine and not by the authors.

This process is experimental and the keywords may be updated as the learning algorithm improves.

Details Effects of temperature and nitrogen supply on post-floral growth of wheat EPUB

The possible interacting effects of shading and N supply on number of grains of Triticum aestivum L. (cv. Buck Ñandú) were investigated at Balcarce, Argentina, during the /89 and /90 growing seasons. Shading was imposed from c. 13 days before anthesis to 6 days after, and four rates of N fertilization were supplied within each shading treatment around the date of terminal spikelet.

Nitrogen fertilizer is a critical determinant of grain yield and seed quality in wheat. However, the mechanism of nitrogen level during seed production affecting wheat seed vigor and seedling establishment at the transcriptome level remains unknown.

Here, we report that wheat seeds produced under different nitrogen levels (N0, N, N, and N) showed significant differences in seed. essential for wheat to endure the freezing temperatures of winter, the late frosts of spring, the high temperatures of June, and the droughts that can occur anytime.

Because of its winter growth habit, wheat is planted during fall, becomes well established before winter, and “greens up” and starts growing quickly when conditions are favorable. All plants utilize nitrogen (N) in the form of NO3- and NH4+. It is most imperative element for proper growth and development of plants which significantly increases and enhances the yield and its.

The Broadbalk Wheat Experiment at Rothamsted (UK) includes plots given the same annual applications of inorganic nitrogen (N) fertilizer each year since (48, 96 and kg N/ha, termed N 1 N 2 and N 3 respectively). These very long-term N treatments have increased total soil N content, relative to the plot never receiving fertilizer N (N 0), due to the greater return of organic N to the.

Experiment was conducted to determine the effect of different nitrogen levels on four bread wheat varieties (Triticum aestivum L.) viz.

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Inqilab, Daman, Dera and Punjab at Gomal University, Dera Ismail Khan (NWFP), Pakistan during ~The experiment was laid out in split plot design having four replications using a net plot size of 2 m×5 m. takes for wheat to develop from Feekes 2 to Feekes 3 will vary.

Tillering may begin in the fall and not be complete until the following spring. If favorable weather conditions exist, early-planted wheat may complete tiller formation before wheat enters winter dormancy. Feekes growth stage is when early nitrogen applica. Nitrogen Application in Winter Wheat Grown in Mediterranean Conditions: Effects on Nitrogen Uptake, Utilization Efficiency, and Soil Nitrogen Deficit.

Journal of. A well-parameterized FSPM of wheat can be used for the same purposes as the more classical wheat crop growth models (e.g. Jamieson et al., ; Van Ittersum et al., ; Yin and Van Laar, ), in which leaf area, plant biomass, and crop yield depend on resource capture (light, nutrients, water).

However, if the modelling is motivated from. To study the effects of different levels of nitrogen fertilizer on yield and yield components of cultivars of rainfed wheat a study was done in the crop year as factorial in a randomized complete block design with 3 replications, in 2 research stations of Kohne Kand city in Bojnord and Shirvan dryland research station.

The treatments of study contain cultivars of wheat in 4 levels. The scientists found that wheat yield and growth parameters improved with increasing levels of nitrogen application despite elevated carbon dioxide conditions and higher temperatures.

Ammonium sulfate contains 24% S, therefore applying some of the wheat N requirement in this form will also supply S. Generally, lb/A of ammonium sulfate in the wheat N program, which will supply 24 lb S/A, will supply adequate S for wheat in most situations. Ammonium thiosulfate (ATS) is often used as an S source with UAN.

A field experiment was conducted with different nitrogen regimes to assess the growth and yield performance of wheat genotypes which differ in nitrate assimilation potential. Genotypic differences in biomass accumulation were observed at different growth stages.

nitrogen (N) is more important than ever for increasing yields and profits. N is the single most expensive, yet responsive nutrient that can be applied to a wheat crop.

Many producers limit their yields by not applying enough of this element, not distributing it evenly, or applying too much N in the fall and generating too much growth. Growth at elevated pCO 2 frequently brings about change in plant physiology that is commonly interpreted as acclimation (Drake et al., ).Photosynthesis is inextricably involved because CO 2 is the substrate in C 3 species that is limiting at the current atmospheric pCO r, results from investigations on the effects of elevated pCO 2 on photosynthesis have been inconsistent.

The global wheat consumption has escalated at a faster rate than all other cereals. This growth is accounted for by the increase in developing countries, mainly in China and India, and based on the future projection, the growth of wheat consumption will continue [].In these two countries, the use of production inputs, primarily nitrogen fertiliser and irrigation water, has risen dramatically.

The supplies of water and nitrogen are the major drivers of growth and yield of crops and the two interact to determine crop yield. While availability of moisture is recognised widely as an important factor limiting responses to N, it is also important to realise that lack of N can be an important limitation to soil water use and particularly.

Effects of nitrogen on crop development and grain growth of winter wheat in relation to assimilation and utilization of assimilates and nutrients.

(). Influence of air temperature, light intensity and soil moisture on the growth, yield and some growth analysis characteristics of Chinook wheat grown in the growth .The grain yield and nitrogen use efficiency of durum wheat vary in response to genotypic and nitrogen fertilization were studied in field during two growth seasons.

The aim of this study was to evaluate the effects the N fertilizer rate on grain yield and quality under irrigated desert conditions in .Grain Growth of Wheat and its Limitation by Carbohydrate and Nitrogen Supply. Pages Aspects of Modelling Post-Floral Growth of Wheat and Calculations of the Effects of Temperature and Radiation.

Pages Vos, J.