Dynamic Variation and Correlation of Pericarp Tenderness and Component Contents of Super Sweet Corn(sh_(2))in Kernel Development  

作　　者：Shilong ZHANG Xiaoqin LI Zhenghua HE Yiqin HUANG 

机构地区：[1]Institute of Food Crops,Hubei Academy of Agriculture Sciences,Wuhan 430064,China [2]Hubei Key Laboratory of Germplasm Innovation and Genetic Improvement of Grain Crops,Wuhan 430000,China [3]State Key Laboratory for Conservation and Utilization of Subtropical Agrobioresources/South China Agricultural University,Guangzhou 510000,China [4]Hubei Collaborative Innovation Center for Grain Industry,Yangtze University,Jingzhou 434000,China

出　　处：《Agricultural Biotechnology》2022年第4期26-31,35,共7页农业生物技术（英文版）

基　　金：The Open Project of the State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources(SKL-CUSAb-2013-03)。

摘　　要：Data on the mechanism of how pericarp components in fresh sweet corn affect pericarp tenderness are scarce.This study explored variation and correlation of pericarp tenderness and components over time in three inbred lines of sweet corn that were selected for their differences in pericarp tenderness.The three lines presented a curvilinear increase in pericarp tenderness(puncture reading)from 12 to 24 d after pollination(DAP)across two environments,with the means at each time point always in the same order:S33205>T105>PE10.Pericarp tenderness difference at each same time point in two environments over time varied similarly in each of the three inbred lines:increasing first,then dropping after peak,and insignificant at the end.Of the main pericarp components,mean contents were in the order:hemicellulose>cellulose>lignin in both environments at each time point for the three inbred lines.As the pericarp developed,hemicellulose content increased gradually,lignin content varied along a single-peak curve,cellulose content fluctuated around 24%,and pectin and ash contents changed slightly and irregularly.The pericarp of PE10,with the most tender pericarp,accumulated hemicellulose faster than other two lines.Hemicellulose and lignin contents were significantly correlated with pericarp tenderness,and the main components affected pericarp tenderness.

关 键 词：Super sweet corn Pericarp tenderness Main ingredients Growth curve Interrelation 

分 类 号：S513[农业科学—作物学]