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Polyethylene glycol (PEG-6000) was used in this study to simulate water stress and comparatively analyze the differences in physi ological index and agronomic traits of two different nitrogen use efficiency hybrid rice varieties (N-efficient species De xiang4103 and N-inefficient species Yi xiang 3724) under the conditions of different nitrogen concentrations (N0, N1, N2 respectively 0, 2.5, 5 mmol/L) and different water stress (P0, P1, P2, respectively 0, 5 %, 10 %) conditions at the seeding stage. The results showed that the physiological index and agronomic traits of all varieties in no nitrogen levels were significantly lower than that of nitrogen levels, and with the increase degree of water stress, the two species of photosynthetic pigments, soluble sugar, proline, nitrogen accumulation, seedling height and Seedling thickness showed a decreasing trend. Under the nitrogen fertilizer condition, with the increase degree of water stress, to De Xiang 4103, the content of photosynthetic pigment, soluble sugar increased (In addition to N2 level decrease), the proline content first decreased and then increased, seedling height and Seedling thickness decreased, the accumulation of dry matter and nitrogen decreased in N1 level and de creased at first and then increased in N2 level; to Yi xiang 3724，Soluble sugar increased (In addition to N1 level decrease), the accumulation of dry matter and nitrogen decreased at first and then increased, the remaining indicators behaved the same with De Xiang 4103. After rehabilitation treatment, the indicators showed different degrees of increased or decreased, that is the different compensation effects; and from the water stress treatment to after rehabilitation treatment, the accumulation of total nitrogen and dry matter are positively related to certain accumulation in two rice varieties. It can be seen that different nitrogen species showed different reactions to different water and nitrogen efficiency, and different degrees of synergistic effect of water and nitrogen. N-efficient species De xiang 4103 had stronger ability to adapt nitrogen and water stress than N-inefficient species Yi xiang 3724. [ABSTRACT FROM AUTHOR]

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OBJECTIVE:To probe into the clinical efficacy of azelastine hydrochloride nasal spray combined with desloratadine in treatment of allergic rhinitis. METHODS: 80 patients with allergic rhinitis admitted into Huanggang Central Hospital from Oct. 2014 to Feb. 2016 were selected to be divided into observation group and control group via the random number table, with 40 cases in each. The control group were treated with azelastine hydrochloride nasal spray, while the observation group additionally received desloratadine based on the control group, the treatment course was 5 weeks. The clinical efficacy and complications of two groups were observed. RESULTS:After treatment, the total effective rate of observation group was 95. 00%( 38/40 ), significantly higher than that of control group [ 67. 50%(27/40 ) ], with statistically significant difference ( P <0. 05 ). During treatment, the incidence of complications in observation group was 5. 00%( 2/40 ), significantly lower than that in control group [ 30. 00%( 12/40 ) ], with statistically significant difference(P<0. 05). CONCLUSIONS:The efficacy of azelastine hydrochloride nasal spray combined with desloratadine in treatment of allergic rhinitis is significant, which can effectively reduce the risks of complications. [ABSTRACT FROM AUTHOR]