Seed yield components and their potential interaction in grasses - to what extend does seed weigth influence yield?

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  • Afgrødeøkologi og Produktkvalitet
  • Institut for Genetik og Bioteknologi

In a first-year seed crop of red fescue (Festuca rubra L.) the degree of lodging was controlled by the use of Moddus (Trinexapac-ethyl). Seed weight was found to increase by the decreasing degree of lodging prior to harvest. The higher seed weights were accompanied by higher yields even though the number of reproductive tillers and floret site utilization (FSU) were unaffected by the treatments.

Seed yield is affected by several yield components and reflects the interaction between the seed yield potential (e.g. number of reproductive tillers, number of spikelets and florets/spikelet per reproductive tiller), the utilization of the potential (e.g. seed set, seed weight) and the realization of the seed yield potential, defined as the number of florets forming a saleable seed. The realization of the seed yield potential is affected by seed retention, seed weight and other traits associated with yield loss during the harvest and post-harvest processes.

OriginalsprogEngelsk
TitelProceedings of the 7th International Herbage Seed Conference
RedaktørerG R Smith, G W Evers, L R Nelson
Antal sider4
Udgivelsesår2010
Sider109-112
StatusUdgivet - 2010
BegivenhedThe 7th International herbage Seed Conference - Dallas, Texas, USA
Varighed: 11 apr. 201013 apr. 2010

Konference

KonferenceThe 7th International herbage Seed Conference
LandUSA
ByDallas, Texas
Periode11/04/201013/04/2010

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