. Cirtus fruits under irragation. Citrus fruits; Fruit-culture. 38 CITRUS FRUITS UNDER IRRIGATION § 23 requiring from 10 days to 2 weeks to produce the desired color, the drop- ping of the stems is considerably less than when the coloring takes place more rapidly, even though the conditions of temperature and humidity in the two sets of conditions seem to be approximately alike. It is observed that as long as the lemons remain green there are no signs of the loosen- ing of the stems, but when the change of color begins to take place, especially if this happens rapidly, the loosening begins to
. Cirtus fruits under irragation. Citrus fruits; Fruit-culture. 38 CITRUS FRUITS UNDER IRRIGATION § 23 requiring from 10 days to 2 weeks to produce the desired color, the drop- ping of the stems is considerably less than when the coloring takes place more rapidly, even though the conditions of temperature and humidity in the two sets of conditions seem to be approximately alike. It is observed that as long as the lemons remain green there are no signs of the loosen- ing of the stems, but when the change of color begins to take place, especially if this happens rapidly, the loosening begins to be noticeable. This would seem to indicate that other factors than those mentioned play a r61e in this matter. In order to obtain more information as to the cause of the loss of stems, a number of experiments were made, having for their object the determination of the part played by humidity and the nature of other possible influences. It was considered feasible to combine this work with the experiments on coloring which have already been described. * * * *. The results of the experiments conducted seem to show that other factors than humidity play an important part in the loss of stems. They not only indicate clearly that an elimination of humidity will not prevent the stems from loosening, but they show equally well that if those factors which color fruit rapidly are withheld, the continued application of heat and humidity will not necessarily cause the stems to loosen. Thus they indicate a striking relationship between the coloring of the lemons and the loss of stems. The rapidity of the former change to a considerable degree measures the extent of the latter. This view is corroborated by practical observations in operating sweat rooms. It must not be understood that htunidity has no influence whatever in this matter. There is little doubt that excessive moisture has a tendency to remove the stems, at least under certain conditions. It is equally certain, however, that humi
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