The shock-absorbing packing material has a pair of first grooves each formed in a portion of the interior face of the first wall in connection with the interior face of the second wall, and a pair of second grooves each formed in a portion of the interior face of the first wall in connection with the interior face of the third wall. First anatomical and functional image data sets are acquired, and form a first co-registered composite image data set. The invention further relates to seeds and plants produced by such crossing.