Botany Sesame

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flower of s. indicum


sesame annual plant growing 50 100 cm (1.6 3.3 ft) tall, opposite leaves 4 14 cm (1.6 5.5 in) long entire margin; broad lanceolate, 5 cm (2 in) broad, @ base of plant, narrowing 1 cm (0.4 in) broad on flowering stem. flowers yellow, tubular, 3 5 cm (1.2 2.0 in) long, four-lobed mouth. flowers may vary in colour, being white, blue, or purple.


sesame seeds occur in many colours depending on cultivar. traded variety of sesame off-white coloured. other common colours buff, tan, gold, brown, reddish, gray, , black. colour same hull , fruit.



capsule


sesame fruit capsule, pubescent, rectangular in section, , typically grooved short, triangular beak. length of fruit capsule varies 2 8 cm, width varies between 0.5 , 2 cm, , number of loculi varies 4 12. fruit naturally splits open (dehisces) release seeds splitting along septa top bottom or means of 2 apical pores, depending on varietal cultivar. degree of dehiscence of importance in breeding mechanised harvesting, insertion height of first capsule.


sesame seeds small. size, form, , colours vary thousands of varieties known. typically, seeds 3 4 mm long 2 mm wide , 1 mm thick. seeds ovate, flattened, , thinner @ eye of seed (hilum) @ opposite end. weight of seeds between 20 , 40 mg. seed coat (testa) may smooth or ribbed.








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