Results 221 to 230 of about 176,700 (251)

Accumulation of phytate and starch lysophospholipids in rice grains and responses to alterations in P supply or source-sink relations

, 2020
The removal of phosphorus (P) from fields in the harvested seeds of staple crops is a major driver of the global P cycle, and consequently, there is interest in breeding grain crops with lower seed P concentrations.
Terry J. Rose, M. Welling, Cecile C. Julia, Kwanho Jeong, Chuan Tong, D. Waters, Lei Liu   +6 more
semanticscholar   +1 more source

Alteration of Wheat Source-Sink Relation by Nitrogen and Spikelet Removal

Tekirdağ Ziraat Fakültesi Dergisi, 2023
The source and sink relationships determine the amount and distribution of biomass in plants. Field and laboratory experiments were conducted to study the effect of nitrogen rate and spikelet removal on seed yield and germination traits of wheat. The field experiment was conducted employing sink manipulation (no spikelet removal and ½ spikelet removal)
openaire   +2 more sources

Source-Sink Relations: The Role of Sucrose

1996
We examine the idea that sucrose plays a central role in control of plant growth beyond that of substrate and product. The extended hypothesis we discuss is that sucrose can regulate source metabolism by down-regulating genes encoding proteins involved with photosynthesis, and sink metabolism by up-regulating genes encoding proteins involved with ...
C. J. Pollock, J. F. Farrar
openaire   +1 more source

Impact of various soil hydraulic properties and water source-sink relations on plant rings formation and sizes under arid conditions

, 2020
In semi-arid and arid environments, clonal plants occasionally appear in ring patterns with a barren soil centre. There is a general agreement that this pattern forms when ramets grow radially, leaving a dead centre where the parent plant once was ...
Ofir Katz, Yair Herooty, P. Bar (Kutiel), H. Yizhaq   +3 more
semanticscholar   +1 more source

Records of Source—Sink Relations by Means of Respiration Measurements

Journal of Experimental Botany, 1989
A method for recording respiration rates of attached single soybean pods is described. By means of such records source-sink relations can be observed over an extended period of time if photosynthesis of leaves is recorded simultaneously. It is shown that there are direct influences on respiration, such as changes in temperature and indirect effects ...
openaire   +1 more source

Root Development and Source-Sink Relations in Carrot,Daucus carotaL

Journal of Experimental Botany, 1980
Physiological responses to root pruning were investigated by comparing 14C02 fixation rates, the partitioning of ""?-labelled assimilate, and soluble and insoluble carbohydrate levels in the leaves of carrot plants following the removal of some of the fibrous roots, or fibrous roots and part of the tap root. Root pruning reduced 14C02 fixation by 28-45%
L. R. BENJAMIN, M. J. WREN
openaire   +1 more source

On the use of isotopic differences of carbon fractions of biomass in plants to study transport flows and source-sink relations under different light conditions

Izvestiâ Akademii nauk. Rossijskaâ akademiâ nauk. Seriâ biologičeskaâ
It is shown that the differences in the isotopic composition of carbon in the water-soluble and water-insoluble fractions of plant leaf biomass, as well as phloem, are evolutionarily determined.
A. Ivlev, V. A. Litvinsky, N. M. Przewalsky, D. A. Tovstyko, A. Shmakov, M. P. Lomakin, N. N. Sleptsov, I. G. Tarakanov   +7 more
semanticscholar   +1 more source

Source‐Sink Carbon Relations in Two Panicum Coloratum Ecotypes in Response to Herbivory

Ecology, 1991
Population samples of an African C4 grass, Panicum coloratum L., were collected from two locations in the Serengeti Grasslands varying in grazing intensity, one a high—grazing location (GA = grazing—adapted), the other a low—grazing location (NGA = nongrazing—adapted).
M. I. Dyer, M. A. Acra, G. M. Wang, D. C. Coleman, D. W. Freckman, S. J. McNaughton, B. R. Strain   +6 more
openaire   +1 more source

Effects of biologically active compounds on source-sink relations in plants during reproductive period

Doklady Biological Sciences, 2008
Due to source‐sink relations, a redistribution of plastic compounds occurs between plant organs during their ontogeny. The inflorescence (ear, panicle) is a main sink in annual grasses during their reproductive period. Although source‐sink relations are genetically determined, such factors as weather conditions, mineral nutrition, and biologically ...
I. G. Orlova, N. A. Galushko
openaire   +1 more source

Effects of Light Spectral Quality on Morphogenesis and Source–Sink Relations in Radish Plants

Russian Journal of Plant Physiology, 2001
The accumulation of dry matter and the content of major phytohormones in the aboveground and underground plant parts, as well as light curves and the diurnal course of photosynthesis in the leaves were studied in radish (Raphanus sativusL.) plants of different ages that were grown under red (RL) or blue (BL) light.
I. S. Drozdova, V. V. Bondar, N. G. Bukhov, A. A. Kotov, L. M. Kotova, S. N. Maevskaya, A. T. Mokronosov   +6 more
openaire   +1 more source