scholarly journals Effects of Nitrogen and Sulfur Fertilizers on Nitrogen Content in Soil, Ear Leaf, Flag Leaf and Grain of QPM Maize Varieties at Samaru Zaria

2012 ◽  
Vol 4 (5) ◽  
Author(s):  
M. M. Jaliya ◽  
U. F. Chiezey ◽  
B. Tanimu ◽  
A. C. Odunze ◽  
M. K. Othman ◽  
...  
Keyword(s):  
Nitrogen Content ◽  
Flag Leaf ◽  
Maize Varieties ◽  
Sulfur Fertilizers

Selection for crude protein content in Phalaris tuberosa L. III. Physiological relationships between crude protein content and seedling vigour.

1973 ◽  
Vol 24 (1) ◽  
pp. 47 ◽  
Author(s):  
RJ Clements
Keyword(s):  
Nitrogen Content ◽  
Protein Content ◽  
Seed Weight ◽  
Crude Protein ◽  
Flag Leaf ◽  
Leaf Node ◽  
Crude Protein Content ◽  
Seedling Vigour ◽  
Relative Growth Rates ◽  
Selection For

Seedling growth of half-sib families from two lines of P. tuberosa previously selected for high and low herbage nitrogen contents respectively was examined in a glasshouse during the autumn and winter. Seedlings from the high nitrogen line were smaller than those of the low nitrogen line but had similar whole-plant relative growth rates. Differences in the rate of nitrogen absorption by the roots (h), and in the rate of seedling weight increase per unit of absorbed nitrogen (EN), accounted for most of the variation in herbage nitrogen content between families. The heights of seedlings were closely correlated with the weights of seeds from which they originated and with EN, and when these two characters were held constant the partial correlation between nitrogen content and seedling weight was negligible (r = -0.05). Among 10 clones differing markedly in herbage nitrogen content in the field, seed weight was closely correlated with the photosynthetic area above the flag leaf node available to each seed, particularly that contributed by the spikelet (r = 0.82***). Two alternative interpretations of this result are discussed. Relationships between nitrogen content, spikelet number, and the areas of photosynthesizing organs above the flag leaf node suggest that seed weight could be maintained during selection for increased nitrogen content by concurrently selecting either for large seeds, or for large flag leaves and a reduced number of spikelets per head. Even so, some loss of actual or potentially attainable seedling vigour seems almost inevitable because of the dependence of nitrogen content on IN and EN and because EN is an important determinant of vigour.

scholarly journals Phenotyping flag leaf nitrogen content in rice using a three-band spectral index

2019 ◽  
Vol 162 ◽  
pp. 475-481 ◽  
Author(s):  
Jian-Jun Wang ◽  
Zhikang Li ◽  
Xiuliang Jin ◽  
Guohua Liang ◽  
Paul C. Struik ◽  
...  
Keyword(s):  
Nitrogen Content ◽  
Spectral Index ◽  
Flag Leaf ◽  
Leaf Nitrogen ◽  
Leaf Nitrogen Content

The relative supply of carbohydrate and nitrogen to wheat grains, and an assessment of the shading and defoliation techniques used for these determinations

1965 ◽  
Vol 16 (6) ◽  
pp. 893 ◽  
Author(s):  
IF Wardlaw ◽  
DJ Carr ◽  
MJ Anderson
Keyword(s):  
Nitrogen Content ◽  
Flag Leaf ◽  
Dry Weight ◽  
Wheat Grains ◽  
Grain Nitrogen

Leaf contribution to grain dry weight and grain nitrogen was estimated in four varieties of wheat from their responses to shading and defoliation treatments. The relation between movement of nitrogen and dry material from leaves to grains appeared as an important factor in the differences between varieties in respect to the percentage nitrogen content of grains. Experiments with labelled carbon, however, showed that there was a significant redistribution of assimilates from other parts when the ear was shaded or the flag leaf removed.

STUDIES ON THE NATURE OF DISEASE RESISTANCE IN CEREALS: III. THE ORGANIC NITROGEN CONTENT OF MATURE AND IMMATURE TISSUES OF THE WHEAT PLANT IN RELATION TO STEM-RUST RESISTANCE

1935 ◽  
Vol 13c (6) ◽  
pp. 355-357
Author(s):  
T. Johnson ◽  
O. Johnson
Keyword(s):  
Disease Resistance ◽  
Nitrogen Content ◽  
Stem Rust ◽  
Rust Resistance ◽  
Organic Nitrogen ◽  
Flag Leaf ◽  
Wheat Plant ◽  
Stem Rust Resistance ◽  
Wheat Varieties

Analyses were made to determine the organic nitrogen content of immature and mature tissues of six wheat varieties at a stage of growth about a week prior to the emergence of the flag leaf. The immature tissues comprised the leaves folded within the uppermost sheaths, while the mature tissues were represented by the fully grown leaves of the upper half of the plants. In all the varieties the nitrogen content of the mature tissues was greater than that of the immature ones. The greater susceptibility of the younger tissues can not, therefore, be attributed to a higher organic nitrogen content.

Variation in Endosperm Characteristics and Nitrogen Content in Six Wheat Lines

1982 ◽  
Vol 9 (5) ◽  
pp. 539 ◽  
Author(s):  
RM Gleadow ◽  
MJ Dalling ◽  
GM Halloran
Keyword(s):  
Nitrogen Content ◽  
Grain Growth ◽  
Leaf Senescence ◽  
Flag Leaf ◽  
Cell Number ◽  
Nitrogen Storage ◽  
Starch Granules ◽  
Endosperm Cell ◽  
Wide Range ◽  
Wheat Lines

Grain growth was studied in six wheat lines which represented a wide range of mature grain weights (18-56 mg). Endosperm cell number, measured by counting nuclei, was positively related to final grain weight, apparently by allowing a higher rate of grain growth. Those wheat lines with fewer endosperm cells also tended to have smaller cells. As a consequence, large grains contained larger numbers of starch granules per endosperm and per cell. The time after anthesis at which nitrogen in the flag leaves began to decline varied between wheat lines and appeared to be related to both the pattern of nitrogen storage in the grain and the duration of grain growth. However, once initiated, the rate of flag-leaf senescence exhibited similar kinetics in all wheat lines.

Poultry Manure as a Fertilizer

EDIS ◽  
2013 ◽  
Vol 2013 (11) ◽  
Author(s):  
Michael A. Davis ◽  
Doug R. Sloan ◽  
Gerald Kidder ◽  
R. D. Jacobs
Keyword(s):  
Organic Matter ◽  
Environmental Factors ◽  
Nitrogen Content ◽  
Soil Amendment ◽  
Poultry Manure ◽  
Nutrient Retention ◽  
High Nitrogen Content ◽  
High Nitrogen ◽  
Animal Science ◽  
Fact Sheet

Animal manures have been used as natural crop fertilizers for centuries. Because of poultry manure’s high nitrogen content, it has long been recognized as one of the most desirable manures. Besides fertilizing crops, manures also supply other essential plant nutrients and serve as a soil amendment by adding organic matter, which helps improve the soil’s moisture and nutrient retention. Organic matter persistence will vary with temperature, drainage, rainfall, and other environmental factors. This 2-page fact sheet was written by Michael A. Davis, D.R. Sloan, Gerald Kidder, and R.D. Jacobs, and published by the UF Department of Animal Science, November 2013. http://edis.ifas.ufl.edu/aa205

STANDING CROP NITROGEN CONTENT (FIFE)

1994 ◽  
Author(s):  
T. G. F. KITTEL ◽  
W. J. PARTON ◽  
D. S. SCHIMEL
Keyword(s):  
Nitrogen Content ◽  
Standing Crop

Effects of Sugar and Nitrogen Content in Peel on Color Development in Satsuma Mandarin Fruits

1989 ◽  
Vol 58 (3) ◽  
pp. 575-580 ◽  
Author(s):  
Toshihiko TAKAGI ◽  
Yukinao MASUDA ◽  
Tomoko OHNISHI ◽  
Tetsuo SUZUKI
Keyword(s):  
Nitrogen Content ◽  
Satsuma Mandarin ◽  
Color Development

Study on floral traits and seed setting in parental lines of hybrid rice during early ahu and kharif seasons

2018 ◽  
Vol 78 (3) ◽  
Author(s):  
Aradhana Phukan ◽  
P. K. Barua ◽  
D. Sarma ◽  
S. D. Deka
Keyword(s):  
Seed Set ◽  
Flag Leaf ◽  
Pollen Dispersal ◽  
Pollen Sterility ◽  
Leaf Length ◽  
Floral Traits ◽  
Opening Angle ◽  
Leaf Angle ◽  
Seed Setting ◽  
Parental Lines

Two CMS lines, IR 58025A and IR 68888A along with their maintainers and two fertility restorers, LuitR and IR 36R, were evaluated for flower and plant characters during early ahu (February-June) and kharif (July-November) seasons. IR 58025A showed longer stigmata and styles, and higher spikelet Length/Breadth (L/B) ratio while IR 68888A showed broader stigmata and wider glume opening angle in both the seasons. IR 68888A also exhibited higher pollen sterility during early ahu. IR 36R was characterized with broad anthers. LuitR showed longer and broader anthers with more pollen than others. Plant height, flag leaf length, flag leaf width and area were higher in IR 36R. Panicle exsertion was complete in pollen parents whereas it was 78-80% in CMS lines. The widest flag leaf angle was found in IR 58025B during early Ahu and in IR 36R during kharif. Kharif season was more favourable for growth of the plants with higher seed set percentage while floral traits of the CMS lines were better expressed in early Ahu. Manipulation of the seeding sequence of the parental lines in early Ahu is warranted for better seed set provided the seed crop escapes heavy premonsoon showers during reproductive stage. IR 68888A/LuitR was a good combination for pollen dispersal and seed setting.

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