Journal of Plant Biotechnology : eISSN 2384-1397 / pISSN 1229-2818

Table. 1.

Table. 1.

EFSA guidance for plant materials, cultivation conditions, crop harvest, and storage for comparative compositional analysis

Materials •GM plant/conventional counterpart/conventional comparators
- The choice of the non-GM reference should be appropriate for the chosen sites
•GM plants carrying specific traits require appropriate treatment comparisons
- Herbicide-tolerant GM plants: the GM plants exposed to the intended herbicide; the comparator and the GM plants treated with conventional herbicide management
Location •A minimum of 8 sites
•At least 6 conventional comparators
•Sites chosen to be representative of the range of likely receiving environments where the plant will be grown
•Information on important parameters, such as soil type; herbicide use; climatic, cultivation, and environmental conditions; harvest time; and conditions during storage of harvested materials
Field trial design
•A minimum of 4 replicates at one site (4 blocks)
•A minimum of 3 conventional comparators per replicate
•In trials with 2 conventional comparators – 6 replicates
•In trials with 1 conventional comparator – 8 replicates
•Completely randomized block design, balanced incomplete block design
Year •A single year or spread over multiple years
Practice •Local farming practices
Sampling and storage
•The raw agricultural commodity such as grain and forage
•Sampling according to appropriate quality standards
•Information on harvesting time, sample transportation, sample storage conditions
J Plant Biotechnol 2020;47:261-72 https://doi.org/10.5010/JPB.2020.47.4.261
© 2020 J Plant Biotechnol