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Figure 3 | BMC Plant Biology

Figure 3

From: Pyramiding, alternating or mixing: comparative performances of deployment strategies of nematode resistance genes to promote plant resistance efficiency and durability

Figure 3

Plan of the 3-years field experiment in the plastic tunnel. Six cultivation modalities were compared during three successive years: 1) the succession of the same R-gene (Me1), when introgressed in a partially resistant genetic background (DH330), 2) the succession of the same R-gene (Me1) in a F1 hybrid issued from a cross with a susceptible genotype [DH330 x DLL]), 3) the alternance of single R-genes in rotation (Me3 (DH149) the first year, Me1 (DH330) the second year, then Me3 (DH149) the third year), 4) the mixture of lines bearing single R-genes (Me1 (DH330) or Me3 (DH149), respectively) sown in the same plot, 5) the pyramiding of two R-genes (Me3 and Me1) in one plant (F1 [DH149 x DH330]) and 6) the susceptible cultivar (DLL) as control. Each one scare-meter plot harboured five plants of a given modality from April-May to October, followed by five susceptible lettuces from November to February.

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BMC Plant Biology

ISSN: 1471-2229

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