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Abstract Pelargonium Net Vein Agent (PNVA) and Pelargonium Petal Streak Agent (PPSA) have been shown to be graft-transmissable, singly and together, to both ivy-leaf and zonal pelargoniums. In zonal pelargoniums, PNVA symptoms are seasonal; PPSA results in petal curling in some cultivars and in most petal streaking is absent or only on the lower petal surface. PNVA symptoms were stable in the ivy-leaf cultivars studied, as were those of PPSA. There was no interaction between PPSA and PNVA, doubly-infected ivy-leaf cultivars showing both symptom types. Symptoms induced by PNVA and PPSA were eliminated by meristem culture. The commercial potential for the exploitation of PPSA and PNVA is discussed.
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citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 4 | |
popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |