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Esimerkit

• The testa develops from the tissue, the integument, originally surrounding the ovule.
• The seeds are furnished with a reticulated testa, very much in appearance like that of the seeds of two closely-allied pericarps in the cabinet of my friend Mr. Ward, of Wellclose-square, the names of which I have been unable to obtain, but which present strong evidence of belonging to the Malvaceæ.
• In tests with the Lincoln and Virginia varieties of cowpea, Crowley (1959) found that, in plants infected with bean southern mosaic virus before blossoming, the virus was present in nearly 100% of the testae and endosperms of seeds of both varieties, but could not be detected in the embryos.
• Thus, two conditions must be satisfied for the testas to have this effect: contact between the testas and the radicle, and the presence of at least half of the testas.
• A.[Aphelenchoides] arachidis is a parasite of pods, testae, roots and hypocotyls, but not the cotyledons, embryos or other parts of the plant (Bos, 1977a; Bridge et al., 1977).
• One of the most remarkable features of cultivated beans is the enormous range of testa colours and patterns which can be found.