Key;
Laboratory;
of;
Crop;
Biology;
Agronomy;
College;
Shandong;
Agricultural;
University;
Tai;
'an;
271018;
P.R.;
China;
Sweetpotato;
Research;
Center/Sweetpotato;
Research;
Institute;
Chinese;
Academy;
of;
Agricultural;
Sciences;
Xuzhou;
221121;
P.R.;
China;
程序性细胞死亡; 一氧化氮含量; 小麦叶片; 氮素水平; 硝酸还原酶活性; 籽粒蛋白质含量; NO含量; NR活性;