Leaf Growth, Leaf Aging, and Photosynthetic Rate of Tall Fescue Genotypes 1
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چکیده
منابع مشابه
Growth Analysis of Tall Fescue Genotypes Differing in Yield and Leaf Photosynthesis
1 976 Annual Meetings AMERICAN SOCIETY OF AGRONOMY CROP SCIENCE SOCIETY OF AMERICA SOIL SCIENCE SOCIETY OF AMERICA Houston, Texas November 28-December 3,1976 Crop Science Divisions Growth Analysis of T a l l Fescue Genotypes D i f f e r i n g i n Yield and Leaf Photosvntheses. W. W. Wilhelm* and C. J. Nelson, Univ. of Missouri. Leaf growth, d r y mat ter d i s t r i b u t i o n , and carbohydra...
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The basis used for expression of carbon dioxide exchange rate (CER) of single leaves may alter the relative ranking of genotypes being selected for a breeding program. Therefore, field and growth chamber experiments were conducted on 16 genotypes of tall fescue (Festuca arundinacea Schreb.) to determine the relative merit of expressing CER data on a leaf area or leaf weight basis. Genotypes wer...
متن کاملGrowth Rates and Carbohydrate Fluxes within the Elongation Zone of Tall Fescue Leaf Blades.
Investigations were performed to better understand the carbon economy in the elongation zone of tall fescue leaf blades. Plants were grown at constant 21 degrees C and continuous 300 micromoles per square meter per second photosynthetic photon flux density where leaf elongation was steady for several days. Elongation occurred in the basal 20 mm of the blade (0-20 millimeters above the ligule) a...
متن کاملCharacterization of fructan from mature leaf blades and elongation zones of developing leaf blades of wheat, tall fescue, and timothy.
Water-soluble carbohydrate composition of mature (ceased expanding) leaf blades and the elongation zone of developing leaf blades was characterized in wheat (Triticum aestivum L.), tall fescue (Festuca arundinacea Schreb.), and timothy (Phleum pratense L.). These species were chosen because they differ in mean degree of polymerization (DP) of fructan in the mature leaf blade. Our objective was ...
متن کاملCarbohydrate Metabolism in Leaf Meristems of Tall Fescue : II. Relationship to Leaf Elongation Rates Modified by Nitrogen Fertilization.
Our objective was to examine alterations in carbohydrate status of leaf meristems that are associated with nitrogen-induced changes in leaf elongation rates of tall fescue (Festuca arundinacea Schreb.). Dark respiration rates, concentrations of nonstructural carbohydrates, and soluble proteins were measured in leaf intercalary meristems and adjacent segments of elongating leaves. The two genoty...
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ژورنال
عنوان ژورنال: Crop Science
سال: 1978
ISSN: 0011-183X,1435-0653
DOI: 10.2135/cropsci1978.0011183x001800050019x