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Friday, August 7, 2020 | History

2 edition of Assimilate production and partitioning in wheat found in the catalog.

Assimilate production and partitioning in wheat

Godwin Yindoli Mkamanga

Assimilate production and partitioning in wheat

by Godwin Yindoli Mkamanga

  • 132 Want to read
  • 7 Currently reading

Published .
Written in English

    Subjects:
  • Wheat -- Development.

  • Edition Notes

    Statementby Godwin Yindoli Mkamanga.
    The Physical Object
    Pagination[21], 222 leaves, bound :
    Number of Pages222
    ID Numbers
    Open LibraryOL15081851M

    The ratio of N harvest index to grain harvest index, which gives a rough estimate of the relative proportioning of N and carbohydrate in the grain, was positively related to grain protein concentration (r= to , P partitioning while studying the genetic basis of high grain. Assimilate export was estimated from CO 2 exchange and change in specific leaf weight. Total diurnal assimilate export was similar for both cultivars. Large cultivar differences existed, however, in the partitioning of carbon into starch reserves and the relative amounts of assimilate exported during the day and the night.

    Wheat. In wheat, three homeologous genes known as TaSUT1A, TaSUT1B, and TaSUT1D (corresponding to the A, B, and D progenitor genomes that make up the genome of hexaploid wheat) have been characterized (Aoki et al., ). The three are almost equally expressed in leaves, internodes, and developing grains (Aoki et al., ). On the other hand, the mechanism of hybrid vigor is known for dry matter production, such as total dry matter production or dry matter partition rate into fruits in Arabidopsis (Meyer et al.

    Food production and water use are closely linked processes and, as competition for water intensifies, water must be used more efficiently in food production worldwide. A field experiment with wither wheat (Triticum Aestivum L.), involving six irrigation treatments (from rain-fed to 5 irrigation applications), was maintained in the North China. Moisture stress is the main factor affecting wheat germination, stand establishment and assimilate partitioning of wheat in semi-arid region. Osmoconditioning was evaluated as a means of improving germination, stand establishment and assimilate partitioning of wheat in 2 year study in Peshawar, Pakistan. Wheat seeds were primed 48, 72, 96, , and .


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Assimilate production and partitioning in wheat by Godwin Yindoli Mkamanga Download PDF EPUB FB2

1. Introduction. Common wheat (Triticum aestivum L.) is a crucial food sources for humans, which accounts for over 20% of the calories consumed by the global population (Food and Agricultural Organization of the United Nations, ).As an essential macronutrient for crop growth and grain yield (GY), nitrogen (N) directly affects dry matter (DM) production by Author: Miao Liu, Xiaoli Wu, Chaosu Li, Ming Li, Tao Xiong, Yonglu Tang.

Winter wheat (Triticum aestivum L.) is frequently subjected to stress that causes early senescence of plants and cessation of grain research evaluated chemical desiccation for selecting genotypes for tolerance to postanthesis stress and determined the relationship of chemical desiccation tolerance to carbohydrate and N by: Assimilate production and partitioning in wheat.

Abstract. Graduation date: Studies on net carbon exchange, ¹⁴\ud C assimilation, and growth\ud analysis were done on four cultivars of high yielding soft white\ud winter wheat (Triticum aestivum L. em Thell), Anza/Sturdy, Hill-\ud 81, Stephens, and Yamhill, which differ in morphology.

Assimilate Partitioning and Plant Development Article (PDF Available) in Molecular Plant 3(6) November with 2, Reads How we measure 'reads'. In whole plant or crop models, plants are often divided into organs e.g. shoots and roots. It is often convenient to divide these organs into two further compartments — structural and storage material (Warren Wilson, ; Thornley, ).

Little is known about the kinetic parameters for partitioning assimilate between the : G. Hansen, H. Svendsen. Book Description. Adopting an interdisciplinary approach to the study of photoassimilate partitioning and source-sink relationhips, this work details the major aspects of source-sink physiology and metabolism, the integration of individual components and photoassimilate partitioning, and the whole plant source-sink relationships in 16 agriculturally important crops.

This review, dedicated to the th anniversary of A.L. Kursanov's date of birth, considers the development of phloem transport studies since his book, Assimilate Transport in the Plant, was published in This book and several other fundamental publications on phloem structure and functions basically shaped this physiological issue; as a result, several international meetings.

In plants, the partitioning of assimilates depends on source capacity and sink strength. An important parameter for source capacity is the activity of photosynthesis.

Sink strength, defined as the ability of the organ to attract photoassimilates (Ho, ), is essential for assimilate partition between the source and the sink. Several factors. weight production patterns are not directly related with those of nutrient uptake (Sayre, ; Karlen et al., ), and as a result individual nutrients require management to optimize nutrient assimilation.

In a high-yielding, intensively managed study achieving a final yield of Mg. (Evans, ), that assimilate partitioning is in-fluenced by both endogenous and environmental factors (Patrick, ) and that sinks are the most important component of the source-phloem-sink transport system (Farrar, ).

Little is known about assimilate partitioning in orchids despite the value of such information for. Increased concentrations of nitrate in a nutrient solution (2, 5, and 10 millimolar KNO3) were correlated with increased shoot:root ratios of non-nodulated soybeans (Glycine max [L.] Merr.) grown in sand culture.

While altering the pattern of C and N partitioning, the N treatments did not affect whole plant photosynthesis over the study period. Grain formation and assimilate partitioning in wheat, part I. Ear development, assimilate supply and grain growth of wheat: Published in: Simulation of plant growth and crop production.

Wageningen: Pudoc: Author: Spiertz, J.H.J. Date issued:. Assimilate production and partitioning in wheat Public Deposited.

In Anza/Sturdy, only 15% of that assimilate was later remobilized and used to make grain, compared to 47 and 36% in Stephens and Hill Two weeks after anthesis, the ears, stems, and top two leaves were the major photosynthetic organs, in all cultivars, and 75% of the.

Heat stress along with low water availability at reproductive stage (terminal growth phase of wheat crop) is major contributing factor towards less wheat production in tropics and sub-tropics.

Flag leaf plays a pivotal role in assimilate partitioning and stress tolerance of wheat during terminal gro. Assimilate partitioning Assimilate supply is dependent on photosynthesis (Marschner, ) [22]. The distribution of assimilate determines the amounts and patterns of plant growth and yield (Lakso and Flore, ) [17].

Translocation dependent on developmental state of the plant. Transport direction and. Grain formation and assimilate partitioning in wheat, part III.

A deterministic approach to modelling of organogenesis in wheat: Published in: Simulation of plant growth and crop production.

Wageningen: Pudoc: Author: Keulen, van H. Date issued: Access: Open Access: Reference(s). @article{osti_, title = {Assimilate partitioning during reproductive growth}, author = {Finazzo, S F and Davenport, T L}, abstractNote = {Leaves having various phyllotactic relationships to fruitlets were labeled for 1 hour with 10/sub r/Ci of /sup 14/CO/sub 2/.

Fruitlets were also labeled. Fruitlets did fix /sup 14/CO/sub 2/. Translocation of radioactivity from the. Kelly, O M and Spanswick, R M () Maternal, single-gene regulation of assimilate partitioning in pea. Plant Physiology– Koch, K () Molecular crosstalk and the regulation of C- and N-responsive genes.

pp – in Foyer, C H, Quick, W P (Eds) A molecular approach to primary metabolism in higher plants. Directorate of Wheat Research, KarnalIndia.

ABSTRACT Wheat is one of the most important cereal crop grown throughout the world. India now ranks second in terms of total wheat production in the world and for the last years the total wheat production in the country has stagnated. One of the ways to break this yield plateau is. Twenty-eight cultivars with a wide range of stress tolerance and yield potential were treated with 0 and mol NaClO3/litre 14 days after anthesis.

The 2-year study was on a Eudora silt loam; treatments were in randomized-complete blocks with 4 replications. Ten cultivars representing a range of treatment responses were evaluated further at 2 locations on dryland and irrigated.

A wheat plant with a genetic disposition to produce fewer stems is now possible through the introgression of a gene that inhibits tillering (tin).

This study was conducted to determine the effect of the tin gene on the dynamics of tillering, light interception, and dry-matter production and partitioning in several different cultivars of wheat.assimilate synthesis, accumulation, and partitioning as related to the integrated processes of plant growth, development, and production.

For the first time, the conference addressed the issue of phloem xenobiotic transport; since then, this issue has been revisited regu-larly. The collection Recent Advances in Phloem.Assimilate Partitioning. To utilize solar radiation efficiently and to store the photosynthate, a plant must be able to transport to move assimilate from an area of synthesis to an area of mobilization Assimilate produced via Pn is translocated throughout the plant for growth, development, storage and cell maintenance Partitioning: Division of assimilate among these .