A large number of seedlings of various cucumber varieties have been tested for bitterness . In the American variety Improved Long Green one plant was encountered that was non-bitter . This form of non-bitterness is highly valuable for breeding purposes, because of the possibility to select for non-bitterness at the seedling stage . Nonbitter varieties, as occur in other Cucurbitaceae, were not encountered in the many varieties investigated . Bitterness of cucumber and melon plants seems to be controlled by one dominant gene .Plants can be judged for non-bitterness simply by tasting them, provided that the tasters have previously been tested for sufficient discriminatory power .Non-bitterness of the young seedlings can also be shown by a chemical reaction . To this end a simple method has been developed .
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