Thus far, this kit has been successfully used for amplification from dried leaves of Arabidopsis, bean, lemon, maize, rice, sugarcane, tobacco, Eucalyptus, birch, rice and tomato (amongst others). Direct amplification from dried leaves will not work for all species, such as dried grapevine leaves, but should work when extracted with the extraction buffer described in the User Guide. It will also depend on the age of the leaves and the storage conditions. Amplification from dried seed material of maize, soybean, bean, canola, wheat, linseed and pea (amongst others) has been achieved. It is recommended that for initial testing, seed material is used directly in the reaction, but that reactions using different volumes of a crude extraction preparation as template are also run. This would also depend on the testing requirements—a larger number of tests required from one seed might indicate use of the extraction buffer as the method of choice, whereas once-off testing might indicate direct PCR.