Effects of Moisture Conditions on the Physiological Indexes of Young-fruit Stage Loquat in North Marginal Area Effects of Moisture Conditions on the Physiological Indexes of Young-fruit Stage Loquat in North Marginal Area Dynamic Change of Hormones in the Different Tissue of Almond during the Physiological Fruit Drop and Its Effect on Fruit Drop Effects of simulated acid rain on polyamine contents in young fruits of longan