Handbook of Plant and Crop Physiology

Alternatively, partitioning effects may play a role in altered growth: NH 4 must be assimilated imme- diately by the root, resul ...

From a soil standpoint, the overall NUE depends on the interaction of factors responsible for N loss (leaching, denitrification, ...

ing and denitrification are economically and environmentally undesirable and add a large degree of un- certainty to N fertilizer ...

Nitrogen is unique among the mineral nutrients in that it can be absorbed by plants in two distinct forms, as either the anion N ...

RJ Haynes, KM Goh. Biol Rev 53:465, 1978. FE Allison. Adv Agron 18:219, 1966. SA Barber. In: FL Patterson, ed. Agronomic Resear ...

LM Bernardo, RB Clarck, JW Maranville. J Plant Nutr 7:1401, 1984. JC Lycklama. Acta Bot Neerl 12:361, 1963. CT MacKown, RJ Volk ...

WL Nelson, HF Reetz. Crops Soils 38(8):5, 1986. FE Below, RJ Lambert, RH Hageman. Agron J 76:777, 1984. SJ Crafts-Brandner, FE ...

H Doll, M Kreis. In: JHJ Spiertz, T Kramen eds. Crop Physiology and Cereal Breeding. Wageningen, Nether- lands: Centre for Agri ...

FE Below, LE Gentry. J Fertil Issues 4:79, 1987. BR Bock. J Fertil Issues 4:68, 1987. JJ Camberto, BR Bock. Plant Soil 113:79, ...

19 Quantifying Immediate Carbon Export from Source Leaves Evangelos Demosthenes Leonardos and Bernard Grodzinski University of G ...

In leaves of C 3 plants, the stroma of the chloroplast is the site of the reductive pentose pathway (i.e., the Calvin cycle) and ...

for because net CO 2 exchange is measured. The difference in dry weight between samples in the light and the theoretical amount ...

was observed [31,68]. It is impossible to follow the fate of the intermediates using short-lived isotopes during pulse-chase exp ...

model 991, Dev-All, EG&G, Waltham, MA). The flow rate in each chamber was maintained constant between 0.25 and 0.70 L min^1 ...

was determined by liquid scintillation counting (model LS-6800, Beckman Instruments Inc, San Ramon, CA). The C export rate was c ...

QUANTIFYING IMMEDIATE C EXPORT FROM LEAVES 413 Figure 2 Counting efficiency of the GM detectors in experiments with Panicumspeci ...

414 LEONARDOS AND GRODZINSKI Figure 3 Total^14 C fixation,^14 C retention,^14 C export, and^14 C partitioning in major intermedi ...

the light photosynthesis and photorespiration occur simultaneously while C is being exported from the tissue. Our analyses showe ...

Figure 4 Photosynthesis and immediate export rates of source leaves of 42 species measured at ambient CO 2 (35 Pa, A and C) and ...

tomato. Leaves of six C 3 dicots and four C 4 monocots from different families were compared. Their con- clusion was substantiat ...