Seedlynx Technical Sheet

Experimental Background:-
A thesis published in the early sixties suggested that it could be worthwhile to develop a fast growing variety of Tagetes suitable for cultivation in temperate zones. Using this premise to guide the breeding program, Fysicon was able to produce a new variety that actually exceeded the expectations initially proposed. The new variety was based on a thorough study on the Meloidogyne species of the temperate, the sub tropical and tropical zones.
Fysicon formulated a number of objectives for the breeding program, the principal of which were:-
1) A deep rooting system so that the lower levels of soil also benefit from the nematocidal effect. This helps ensure that any deep cultivation in the future does not unearth untreated layers from lower down in the soil profile.
2) A plant with high dry matter content.
3) A system that would reduce the need for nitrogen fertiliser in the subsequent crop combined with a buffering effect spreading nitrogen release over the growing season.

Successful establishment of Polynema depends on the correct sowing techniques and strict weed control in the initial period of emergence and growth. But given sufficient attention to detail at these initial stages, a 97% reduction in the number of nematodes can be achieved.
With the target of optimising nematode reduction using an environmentally friendly approach, Fysicon enlisted the help of a number of growers to ensure that Polynema would become part of a robust and field-tested regime. Specialist support also aided in the determination of what methods would give the best establishment and the greatest eventual reduction in chemical plant protection products.

The guidelines identified by this approach are as follows:-
· The area to be sowed needs to be kept wet for 4 days (germination).
· The plants need around 3 months growing dated from the two true leaf stage before they can be processed.
· The best method for processing the plants is to chop them finely enough to enable easy incorporation into the soil.
· After chopping the material should be allowed to dry for about 10 days.
· After drying, the dry matter can be easily ploughed under.

The positive effect of growing Tagetes Polynema will be at its greatest around a year after sowing. As the nematocidal effect declines over subsequent years, nematode suppression will steadily decrease, evidenced by greater nematode damage on the crop. Using Polynema again becomes worthwhile after about three years. Experienced growers will usually be able to judge how much effect the nematodes are having and adjust the frequency of use accordingly.
It is worthwhile noting that although the nematodes have a direct influence on the crop, they can also be responsible for introducing bacterial, viral and fungal infection into the crop.

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CULTIVATION

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