DPC<sup>+</sup>化学封顶对不同施氮量下棉花叶片光合生理特性的影响

DPC⁺化学封顶对不同施氮量下棉花叶片光合生理特性的影响

时晓娟, 韩焕勇, 王方永, 郝先哲, 高宏云, 罗宏海

Effects of chemical topping with fortified mepiquat chloride on photosynthetic characteristics of cotton leaves under different nitrogen rates

Xiao-Juan SHI, Huan-Yong HAN, Fang-Yong WANG, Xian-Zhe HAO, Hong-Yun GAO, Hong-Hai LUO

表6 不同时期测定参数与单株地上部和生殖器官干物质重的相关参数

Table 6 Correlation coefficients between the measured parameters and shoot and reproductive parts dry mass in different periods

生育时期 Growth stage	参数 Parameter	SDM		RODM	LA	Chl	P_n		T_r	G_s	F_v/F_m	Ф_{PS II}	ETR	NPQ
盛花期 Full flowering	SDM	1
	RODM	0.882^**		1
	LA	0.901^**		0.838^**	1
	Chl	0.788^**		0.894^**	0.713^**	1
	P_n	0.941^**		0.887^**	0.764^**	0.877^**	1
	T_r	0.353		0.536	0.113	0.602^*	0.617^*		1
	G_s	0.837^**		0.857^**	0.638^*	0.851^**	0.955^**		0.769^**	1
	F_v/F_m	0.300		0.346	0.101	0.248	0.273		0.122	0.236	1
	Ф_{PS II}	0.649^*		0.827^**	0.499	0.870^**	0.806^**		0.718^**	0.808^**	0.333	1
	ETR	0.427		0.584^*	0.262	0.614^*	0.620^*		0.824^**	0.742^**	-0.004	0.685^*	1
	NPQ	-0.687^*		-0.884^**	-0.581*	-0.879^**	-0.821^**		-0.811^**	-0.872^**	-0.316	-0.869^**	-0.782^**	1
盛铃期 Full boll	SDM	1
	RODM	0.643^*		1
	LA	0.903^**		0.552	1
	Chl	0.506		0.693^*	0.316	1
	P_n	0.583^*		0.834^**	0.453	0.734^**	1
	T_r	0.173		0.711^**	0.122	0.647^*	0.665^*		1
	G_s	0.568		0.885^**	0.521	0.719^**	0.933^**		0.607^*	1
	F_v/F_m	0.138		-0.181	0.210	-0.359	-0.308		-0.326	-0.350	1
	Ф_{PS II}	0.344		0.786^**	0.267	0.857^**	0.640^*		0.826^**	0.683^*	-0.313	1
	ETR	0.060		0.303	0.014	0.666^*	0.419		0.681^*	0.330	-0.137	0.667^*	1
生育时期 Growth stage	参数 Parameter		SDM	RODM	LA	Chl		P_n	T_r	G_s	F_v/F_m	Ф_{PS II}	ETR	NPQ
盛铃期 Full boll	NPQ		-0.471	-0.828^**	-0.372	-0.912^**		-0.788^**	-0.847^**	-0.797^**	0.246	-0.933^**	-0.683^*	1
吐絮期 Boll opening	SDM		1
	RODM		0.809^**	1
	LA		0.864^**	0.464	1
	Chl		0.707^*	0.888^**	0.393	1
	P_n		0.682^*	0.806^**	0.354	0.930^**		1
	T_r		0.373	0.714^**	0.011	0.878^**		0.782^**	1
	G_s		0.684^*	0.954^**	0.325	0.926^**		0.863^**	0.799^**	1
	F_v/F_m		-0.083	0.163	-0.379	0.324		0.292	0.476	0.219	1
	Ф_{PS II}		0.605^*	0.735^**	0.445	0.690^*		0.514	0.571	0.692^*	-0.224	1
	ETR		0.224	0.641^*	-0.113	0.772^**		0.682^*	0.916^**	0.719^**	0.376	0.520	1
	NPQ		-0.546	-0.866^**	-0.231	-0.888^**		-0.777^**	-0.825^**	-0.872^**	-0.233	-0.716^**	-0.888^**	1