Query (optional)   in Class  All Allele Author Colleague Collection Assembly Gene Gene Class Gene Product Germplasm Image Journal Keyword Library Locus Map Map Data Marker Pathology Polymorphism Probe Protein QTL Rearrangement Reference Sequence Species Trait Trait Study Two Point Data  

---

GrainGenes Reference Report: SAS-37-1341

[Submit comment/correction]

Reference	SAS-37-1341
Title	Phosphorus distribution in two wheat cultivars as affected by P deficiency at jointing and flagging stage
Journal	Scientia Agricultura Sinica
Year	2004
Volume	37
Pages	1341-1346
Author	Peng Z Li C Men M
Abstract	The P distribution and use efficiency in 2 wheat cultivars, i.e. large-spike CA9325 and multi-spike JM2, as affected by P omittion started at jointing and flagging stage were investigated under controlled conditions to obtain and provide scientific basis for the respective regulatory techniques and get high yields according to the genetic characters of different wheat cultivars. With prolonged plant growth, the increase of P contents in main shoot, valid tillers and whole plants grown under P-sufficient conditions showed a typical S pattern; the peak of the P content appeared at grain filling stage. In all treated plants, the P percentage in main shoot to whole plant of both cultivars showed a steady increase. However, the P percentage decreased gradually in the valid tillers and roots, and in the valid tillers of P-deficient plants in both cultivars. The P content and percentage in grains of main shoot in P-sufficient CA9325 were higher than those in valid tillers; but it was the opposite in JM2 because they belonged to different spike types of wheat. The P content in all vegetative organs and glumes of P-deficient plants was lower than that of P-sufficient plants. As a result, the percentage of P in grains of main shoot and valid tillers of P-deficient plants were higher than those of the control plants. At harvest, the grain yields of P-deficient plants of both cultivars were lower than those of the control plants. The P uptake efficiency of P-sufficient CA9325 and the P harvest indexes of all treated CA9325 plants were higher than those in JM2. However, the P use efficiency of CA9325 was lower than that of JM2. The differences in P use efficiency of the 2 cultivars are discussed
Keyword	control [ Show all 19 ]

GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.