武汉市春季鲜食甜玉米产量和可溶性糖含量的气象影响因子研究

为探讨气象条件对武汉市春季鲜食甜玉米产量和可溶性糖含量的影响，本文开展了分期播种试验，分析了春季鲜食甜玉米产量和可溶性糖含量随播期推移的变化，研究了不同播期处理各生育阶段的气象要素敏感性，通过数据统计、相关分析及偏相关分析等方法，分析了鲜食甜玉米产量及可溶性糖含量的气象影响因子。结果表明：春季鲜食甜玉米生育期在100 d左右，全生育期随播期的推迟而缩短；甜玉米产量与平均气温、有效积温、降水量和日照均有关系，可溶性糖含量主要与平均气温和降水量有关。

Exploration of layered water temperature prediction Modelbased on back propagation Neural network in Wuhan city

In order to explore the effect of meteorological conditions on the yield and soluble sugar content of fresh corn in spring in Wuhan, this paper carried out staged sowing experiments, summarized the changes of yield and soluble sugar content of sweet corn in spring with the time of sowing, and studied the sensitivity of meteorological factors at different growth stages of different sowing dates. Meteorological factors affecting yield and soluble sugar content of fresh corn were analyzed by data statistics, correlation analysis and partial correlation analysis. The results showed that the growth period of fresh maize in spring was about 100 days, which was shortened with the delay of sowing date. The yield of sweet corn was related to average temperature, effective accumulated temperature, precipitation and sunshine, while soluble sugar content was mainly related to average temperature and precipitation.