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The objective of this study was to develop a method to assess and analyze the total allelopathic potential of cropgermplasm and to test this method on four winter wheat accessions commonly planted in the Loess Plateau. A systemsengineering model was developed and used to evaluate the total allelopathic potential of crop cultivars. In addition, amethod for quantifying the total allelopathic potential in crop accessions was presented. Total allelopathic potential offour winter wheat accessions from the Loess Plateau was estimated and compared using a systems theory approach. Themodel assessed allelopathic potential in different parts of the plants from the time wheat turned green in spring untilmaturity. Results from these models indicated that the four wheat accessions had very weak allelopathic potential.Allelopathic potential declined in the order Xiaoyan 22 > Ningdong 1 > Fengchan 3 > Bima 1. This system engineeringevaluation method allows for the assessment of allelopathic potential among crop varieties. It will help plant breeders toselect and develop allelopathic crop accessions that combine weed suppression properties with agronomic traits relatedto yield and quality.
The objective of this study was to develop a method to assess and analyze the total allelopathic potential of cropger mlasm and to test this method on four winter wheat accessions commonly planted in the Loess Plateau. A system model was developed and used to evaluate the total allelopathic potential of crop cultivars. In addition, amethod for quantifying the total allelopathic potential in crop accessions was presented. Total allelopathic potential offour winter wheat accessions from the Loess Plateau was estimated and compared using a systems theory approach. Themodel assessed allelopathic potential in different parts of the plants from the time wheat turned green in spring untilmaturity. Results from these models indicates that the four wheat accessions had very weak allelopathic potential. Allelopathic potential declined in the order Xiaoyan 22> Ningdong 1> Fengchan 3> Bima 1. This system engineer ingevaluation method allows for the assessment of allelopathic potential Among crop varieties. It will help breeders toselect and develop allelopathic crop accessions that combine weed suppression properties with agronomic traits relatedto yield and quality.