光周期对糜子生长发育及叶片内源激素的调控效应

doi:10.3864/j.issn.0578-1752.2021.02.005

Abstract

Abstract:

【Objective】In this study, the variation law of photoperiod on physiology and ecology index of broomcorn millet were observed, which would facilitate to develop the genetic regulation network and map related genes of photoperiod.【Method】The experiments were conducted using 3 broomcorn millet varieties (N1-light insensitive-Neimi 1, N2-light middle-Neimi 2, and N3-light sensitive-Ningmi 14) with different light insensitive degree and with four photoperiod treatments in the pot. The phenological period was investigated. The endogenous hormone content at heading stage, plant height and grain protein content at mature period, and net photosynthetic rate of light insensitive variety after heading were measured.【Result】The growth period and plant height of broomcorn millet were significantly increase by long day compared with short day, which in light sensitive material N3 was 62.07% and 104.24% higher than that of short day, and light insensitive material N1 was 3.51% and 33.35%, respectively. The net photosynthetic rate of leaves after heading showed a significant difference with the development of the growth process, the net photosynthetic rate increased significantly with the prolonged light for accumulating more dry matter. Different photosensitive materials had different regulating mechanisms of endogenous hormones under different photoperiod treatments. The accumulation of IAA content to a certain concentration could promote the plant heading. IAA was significantly positively correlated with GA and ZR, with correlation coefficients of 0.51 and 0.40, respectively, while it was significantly negatively correlated with ABA, with the value of -0.62. The ABA content was negatively correlated with GA and ZR, with the value of -0.70 and -0.39, respectively, and the GA content was positively correlated with ZR, with the values of 0.47. The grain protein content of different light-sensitive materials under the short day in the whole growth period was significantly higher than that of other treatments. The grain protein content of N1, N2 and N3 under short day in the whole growth period were 18.89%, 80.50% and 61.23% higher than those of long day in the whole growth period, respectively, indicating that the light-sensitive material was more susceptible to short-day sunshine than the light-insensitive material.【Conclusion】The photoperiod significantly affected the growth and endogenous hormone content in different photosensitivity materials. Long day significantly prolonged the growth period, increased plant height and enhanced leaf net photosynthetic rate, but decreased the grain protein content in broomcorn millet. IAA content to a certain concentration could promote the transformation of broomcorn millet from vegetative to reproductive growth.

Key words: photoperiod, broomcorn millet, endogenous hormones, plant height, net photosynthetic rate, grain protein content

WANG JunJie,TIAN Xiang,QIN HuiBin,WANG HaiGang,CAO XiaoNing,CHEN Ling,LIU SiChen,QIAO ZhiJun. Regulation Effects of Photoperiod on Growth and Leaf Endogenous Hormones in Broomcorn Millet[J].Scientia Agricultura Sinica, 2021, 54(2): 286-295.

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References 38

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处理 Treatment	3叶期—抽穗期 Three leaf stage-Heading	抽穗期—成熟期 Heading-Maturity
1	短日照Short day	长日照Long day
2	短日照Short day	短日照Short day
3	长日照Long day	短日照Short day
4	长日照Long day	长日照Long day

处理 Treatment	播种期 Sowing (M-D)	出苗期 Seeding (M-D)	遮光期 Shading (M-D)	抽穗期 Heading (M-D)	成熟期 Maturity (M-D)	生育期 Growth (d)
N1-1	06-22	06-26	07-09	07-17	08-21	57
N1-2	06-22	06-26	07-09	07-17	08-21	57
N1-3	06-22	06-26	07-09	07-18	08-22	58
N1-4	06-22	06-26	07-09	07-18	08-22	58
N2-1	06-22	06-26	07-09	07-24	08-23	59
N2-2	06-22	06-26	07-09	07-24	08-23	59
N2-3	06-22	06-26	07-09	07-31	09-14	81
N2-4	06-22	06-26	07-09	07-31	09-15	82
N3-1	06-22	06-26	07-09	07-24	08-23	59
N3-2	06-22	06-26	07-09	07-24	08-23	59
N3-3	06-22	06-26	07-09	08-11	09-26	93
N3-4	06-22	06-26	07-09	08-11	09-26	94

品种 Variety	日期 Date (M-D)	处理 Treatment	IAA (μmol·g^-1)	ABA (ng·g^-1)	GA (pmol·g^-1)	ZR (pmol·g^-1)
N1	07-17	N1-1	0.146a	366.179b	936.204b	1.773b
		N1-2	0.141a	361.254b	901.379b	1.707b
		N1-3	0.119b	394.325a	1055.169a	2.405a
		N1-4	0.123b	400.729a	1105.248a	2.443a
	07-18	N1-1	0.136b	378.133b	1105.301b	1.458b
		N1-2	0.133b	374.726b	1095.450b	1.449b
		N1-3	0.156a	402.441a	1192.990a	2.179a
		N1-4	0.158a	405.573a	1205.837a	2.191a
N2	07-24	N2-1	0.145a	229.246b	1049.532b	1.900b
		N2-2	0.146a	230.404b	1051.654b	1.901b
		N2-3	0.117b	437.253a	1186.729a	2.162a
		N2-4	0.116b	435.032a	1183.353a	2.161a
	07-31	N2-1	0.147b	426.998b	1161.5817a	1.544c
		N2-2	0.112c	443.066a	1150.518a	1.342d
		N2-3	0.166a	394.863c	916.029c	1.611b
		N2-4	0.164a	319.486d	1067.358b	1.912a
N3	07-24	N3-1	0.132a	385.278a	992.634b	2.108b
		N3-2	0.131a	384.230a	990.623b	2.103c
		N3-3	0.114b	342.536b	1198.439a	2.348a
		N3-4	0.112b	339.571b	1192.276a	2.346a
	08-11	N3-1	0.102b	507.101a	1080.563a	1.747a
		N3-2	0.113b	399.116c	898.540b	1.755a
		N3-3	0.141a	442.357b	821.805c	1.756a
		N3-4	0.121ab	472.366b	743.642d	1.745a

指标Index	IAA	ABA	GA	ZR
IAA	1.00
ABA	-0.62**	1.00
GA	0.51**	-0.70**	1.00
ZR	0.40**	-0.39**	0.47**	1.00

Regulation Effects of Photoperiod on Growth and Leaf Endogenous Hormones in Broomcorn Millet

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[3]	GAO ZhiYuan,XU JiLi,LIU Shuo,TIAN Hui,WANG ZhaoHui. Variations of Winter Wheat Nitrogen Harvest Index in Field Wheat Population [J]. Scientia Agricultura Sinica, 2021, 54(3): 583-595.
[4]	GUO ShuQing,SONG Hui,YANG QingHua,GAO JinFeng,GAO XiaoLi,FENG BaiLi,YANG Pu. Analyzing Genetic Effects for Plant Height and Panicle Traits by Means of the Mixed Inheritance Model of Major Gene Plus Polygene in Foxtail Millet [J]. Scientia Agricultura Sinica, 2021, 54(24): 5177-5193.
[5]	CHEN Yang,WANG Lei,BAI YouLu,LU YanLi,NI Lu,WANG YuHong,XU MengZe. Quantitative Relationship Between Effective Accumulated Temperature and Plant Height & Leaf Area Index of Summer Maize Under Different Nitrogen, Phosphorus and Potassium Levels [J]. Scientia Agricultura Sinica, 2021, 54(22): 4761-4777.
[6]	LI YanLin,SHAHID Iqbal,SHI Ting,SONG Juan,NI ZhaoJun,GAO ZhiHong. Isolation of PmARF17 and Its Regulation Pattern of Endogenous Hormones During Flower Development in Prunus mume [J]. Scientia Agricultura Sinica, 2021, 54(13): 2843-2857.
[7]	HOU JiaMin,LUO Ning,WANG Su,MENG QingFeng,WANG Pu. Effects of Increasing Planting Density on Grain Yield, Leaf Area Index and Photosynthetic Rate of Maize in China [J]. Scientia Agricultura Sinica, 2021, 54(12): 2538-2546.
[8]	LIU HaiYing,FENG BiDe,RU ZhenGang,CHEN XiangDong,HUANG PeiXin,XING ChenTao,PAN YinYin,ZHEN JunQi. Relationship Between Phytohormones and Male Sterility of BNS and BNS366 in Wheat [J]. Scientia Agricultura Sinica, 2021, 54(1): 1-18.
[9]	Ming DONG,YanMiao JIANG,HaiQuan LI,LingLing GENG,JianYe LIU,ZhiHong QIAO,GuoQing LIU. Effects of Photoperiod Changes on Morphological Characters and Young Panicle Development in Proso Millet (Panicum Miliaceum L.) [J]. Scientia Agricultura Sinica, 2020, 53(6): 1118-1125.
[10]	WANG JunJie,WANG HaiGang,CAO XiaoNing,CHEN Ling,LIU SiChen,TIAN Xiang,QIN HuiBin,QIAO ZhiJun. Comprehensive Evaluation of Photoperiod Sensitivity Based on Different Traits of Broomcorn Millet [J]. Scientia Agricultura Sinica, 2020, 53(3): 474-485.
[11]	XIA ShuFeng,WANG Fan,WANG LongJun,ZHOU Qin,CAI Jian,WANG Xiao,HUANG Mei,DAI TingBo,JIANG Dong. Study on the Adaptability of Wheat Reaching the Protein Content Standard of Soft Wheat in Jiangsu Province [J]. Scientia Agricultura Sinica, 2020, 53(24): 4992-5004.
[12]	HAO YanRong,DU Wei,HOU SiYu,WANG DongHang,FENG HongMei,HAN YuanHuai,ZHOU MeiLiang,ZHANG KaiXuan,LIU LongLong,WANG JunZhen,LI HongYing,SUN ZhaoXia. Identification of ARF Gene Family and Expression Pattern Induced by Auxin in Fagopyrum tataricum [J]. Scientia Agricultura Sinica, 2020, 53(23): 4738-4749.
[13]	CHEN Ling,WANG JunJie,WANG HaiGang,CAO XiaoNing,LIU SiChen,TIAN Xiang,QIN HuiBin,QIAO ZhiJun. Screening of Broomcorn Millet Varieties Tolerant to Low Nitrogen Stress and the Comprehensive Evaluation of Their Agronomic Traits [J]. Scientia Agricultura Sinica, 2020, 53(16): 3214-3224.
[14]	ZOU JianQiu. New Research Progress on Sorghum Breeding and Cultivation Techniques [J]. Scientia Agricultura Sinica, 2020, 53(14): 2769-2773.
[15]	ZOU JianQiu,WANG YanQiu,LI JinHong,ZHU Kai. Dwarfing Effect and Molecular Mechanism of An Elite Sorghum Male Sterile Line 01-26A in Its Hybrids [J]. Scientia Agricultura Sinica, 2020, 53(14): 2814-2827.