设施栽培辣椒果实品质及形态变化规律的研究

为研究冬春反季节设施栽培辣椒果实绿熟到转色阶段的品质及形态指标在发育过程中的变化规律，以4个辣椒品种和2个甜椒品种为研究对象，对授粉后果实不同生长发育阶段辣椒果实单果重、果长、果肩宽等形态指标及可溶性糖含量和维生素C等品质指标进行检测分析。结果表明，辣椒授粉后7~27 d为辣椒果实快速增长期，辣椒果实开花后37~42 d为最佳采收期，此时水分含量较高，维生素C、可溶性糖和可溶性固形物含量及单果重基本都达到了整个生长发育阶段的峰值。相关性分析表明，果实形态指标与单果重均呈显著正相关关系；维生素C含量、果实可溶性固形物含量、可溶性总糖含量与单果重及大部分果实形态指标均呈显著正相关关系，但与果实含水量均呈极显著负相关关系；可溶性固形物含量与维生素C含量、可溶性糖含量均呈极显著正相关关系。

Study on Fruit Quality and Morphological Changes of Pepper in Greenhouse

In order to study the changes of quality and morphological indexes of off-season greenhouse pepper during the development of fruit from green maturity to color change in winter and spring, 4 hot pepper varieties and 2 sweet pepper varieties were selected as the research materials. The single fruit weight, fruit length, fruit shoulder width and other morphological indexes of pepper fruit at different growth and development stages after pollination, as well as the soluble sugar content, Vc content and other quality indexes were detected and analyzed. The results showed that 7-27 days after pollination was the period of rapid growth of pepper fruit, and 37-42 days after flowering was the best harvest time of pepper fruit. At this time, the water content was high, and the Vc, soluble sugar and soluble solids content and single fruit weight basically reached the peak value of the whole growth and development. The results of correlation analysis showed that the fruit morphological indexes were significantly positively correlated with single weight fruit. The content of Vc, soluble solids and total soluble sugar were significantly positively correlated with single fruit weight and most of the fruit morphological indexes, but significantly negatively correlated with fruit water content. And the content of soluble solids was significantly positively correlated with Vc content and soluble sugar content.