Purpose of field visits: To confirm details on the application forms including correct location of the seed field. To check for off-types and/ or volunteer plants. Timed in such a way that at the time of inspections, varietal off-types and other crop and weed contamination are easily detected The number of off-types in a crop should not exceed the maximum permitted in each class (foundation, certified). To check on crop husbandry. Crop to show evidence of good husbandry. To check on diseases. Crop to be free or within the tolerance of seed-borne diseases as laid down for each class of seed. E.g. In wheat the seed tolerance levels for smut is 0.2% smut cover and for sugar-beans it is 0.1% bacterial wilt and anthracnose (levels are as at final inspection). Check on emasculation, planting pattern, harvesting of male lines etc; check on pollen control there any pollination sources within the prescribed isolation distances? –are Example: Field inspection for hybrid maize: Minimum of five inspections On average 12-16 inspections. Once before pollination Once during pollination - to check on thoroughness of detasseling of the female lines(seed or parent plants); roguing of off-type plants; At pre-harvest of the seed/parent plants check on complete harvesting of male parent and to authorize harvesting of the seed parent. Male parents to be harvested by end of May. Seed parent crop should not contain > 0.1% off-type plants at the final field inspection. At least one inspection of the harvested ears of the seed parent plants. (cob diseases, insect damage, off-type colour seed etc. At least one inspection of the seed harvested from the ears check for grading take samples for quality and germination tests Note: At each visit, the seed crop must comply with the field standards.
Purpose of field visits: To confirm details on the application forms including correct location of the seed field. To check for off-types and/ or volunteer plants. Timed in such a way that at the time of inspections, varietal off-types and other crop and weed contamination are easily detected The number of off-types in a crop should not exceed the maximum permitted in each class (foundation, certified). To check on crop husbandry. Crop to show evidence of good husbandry. To check on diseases. Crop to be free or within the tolerance of seed-borne diseases as laid down for each class of seed. E.g. In wheat the seed tolerance levels for smut is 0.2% smut cover and for sugar-beans it is 0.1% bacterial wilt and anthracnose (levels are as at final inspection). Check on emasculation, planting pattern, harvesting of male lines etc; check on pollen control –are there any pollination sources within the prescribed isolation distances? Example: Field inspection for hybrid maize: Minimum of five inspections On average 12-16 inspections. Once before pollination Once during pollination - to check on thoroughness of detasseling of the female lines(seed or parent plants); roguing of off-type plants; At pre-harvest of the seed/parent plants check on complete harvesting of male parent and to authorize harvesting of the seed parent. Male parents to be harvested by end of May. Seed parent crop should not contain > 0.1% off-type plants at the final field inspection. At least one inspection of the harvested ears of the seed parent plants. (cob diseases, insect damage, off-type colour seed etc. At least one inspection of the seed harvested from the ears check for grading take samples for quality and germination tests Note: At each visit, the seed crop must comply with the field standards.