我国部分常用玉米种质资源对镰孢菌病害的抗性评价

doi:10.3864/j.issn.0578-1752.2019.17.005

Abstract

Abstract:

【Objective】 Maize ear rot, stalk rot and sheath rot are the three common Fusarium diseases in maize producing areas in China, and there is a trend of serious mixing occurrence in recent years. The main pathogens of the three major diseases are F. verticillioides, F. graminearum and F. proliferatum. Planting resistant varieties is the most economical and effective method to control this kind of diseases. The objective of this study is to screen out the maize resistant germplasms to ear rot, stalk rot and sheath rot, and to provide references for scientific breeding and rational layout of maize varieties.【Method】 Sixteen common inbred lines of maize including B73, B37, Zheng 58, Chang 7-2, Qi 319 and so on were selected to inoculate F. verticillioides, F. graminearum, and F. proliferatum on maize ears, stalks and sheaths, respectively. The suspension spores of F. verticillioides were injected into healthy maize ears along the filament channel with a continuous syringe at silk stage. The stem of the first aboveground segment of healthy maize was pinned and then injected with the suspension spores of F. graminearum. The suspension spores of F. proliferatum were injected into the sheath of the aboveground 2-5 internodes along the base of healthy maize sheath. Sterile water was used as control. In 2016 and 2018, experiments were conducted in fields to evaluate the disease index of ear rot, sheath rot and the lesion areas of stalk rot, so as to evaluate the resistance level to the ear rot, stalk rot and sheath rot.【Result】 The tested inbred lines Ji 853, OH43 and X178 were moderate resistance to ear rot, 13 of the tested inbred lines such as B73, B37, PH6WC, Ye 478, Zheng 58, 9058, Chang 7-2, Xun 928, Mo17, A619, PH4CV, Qi 319 and 13-1077 were sensitivity or high sensitivity to ear rot; 8 of the tested inbred lines including Qi 319, PH4CV, Mo17, 9058, B37, B73, Chang 7-2 and 13-1077 were moderate resistance and high resistance to stalk rot, 7 of the tested inbred lines such as Zheng 58, Ye 478, PH6WC, Xun 928, Ji 853, A619 and OH43 were sensitivity or high sensitivity to stalk rot; 15 of the tested inbred lines such as B73, B37, Zheng 58, Ye 478, PH6WC, 9058, Chang 7-2, Ji 853, Xun 928, Mo17, A619, PH4CV, OH43, Qi 319 and 13-1077 were moderate resistance or resistance to sheath rot. According to the population of 16 inbred lines, Reid group was susceptible to ear rot. Lancaster group and Tangsipingtou group were resistant to sheath rot. The resistant levels of other groups to Fusarium diseases dispersed to a large extent, and there was no obvious regularity.【Conclusion】 The tested inbred lines Ji 853 and OH43 showed moderate resistance or resistance to sheath rot and ear rot, 8 of the tested inbred lines including Qi 319, PH4CV, Mo17, 9058, B37, B73, Chang 7-2 and 13-1077 showed moderate resistance, resistance or high resistance to sheath rot and stalk rot, but the materials with good resistance to all three diseases had not yet been screened, and other germplasm resources needed to be further screened.

Key words: maize germplasm resource, ear rot, stalk rot, sheath rot, resistance evaluation, Fusarium spp.

QU Qing,LI LiNa,LIU Jun,WANG ShaoXin,CAO ZhiYan,DONG JinGao. Resistance Evaluation of Some Commonly Used Maize Germplasm Resources to Fusarium Diseases in China[J].Scientia Agricultura Sinica, 2019, 52(17): 2962-2971.

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References 32

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自交系 Inbred line	类群划分 Population	平均病情指数 Average disease index	抗性评价 Resistance evaluation
B73	瑞德Reid	7.60	HS
B37	瑞德Reid	7.60	HS
郑58 Zheng 58	瑞德Reid	7.20	S
掖478 Ye 478	瑞德Reid	6.60	S
PH6WC	瑞德Reid	16.80	HS
9058	瑞德Reid	6.40	S
昌7-2 Chang 7-2	唐四平头Tangsipingtou	13.20	HS
吉853 Ji 853	唐四平头Tangsipingtou	5.20	MR
浚928 Xun 928	唐四平头Tangsipingtou	8.40	HS
Mo17	兰卡斯特Lancaster	14.00	HS
A619	兰卡斯特Lancaster	9.60	HS
PH4CV	兰卡斯特Lancaster	9.40	HS
OH43	兰卡斯特Lancaster	5.20	MR
X178	P78599	5.40	MR
齐319 Qi 319	P78599	8.00	HS
13-1077	—	10.40	HS

自交系 Inbred line	类群划分 Population	平均病情指数 Average disease index	抗性评价 Resistance evaluation
B73	瑞德Reid	22.29	MR
B37	瑞德Reid	18.66	MR
郑58 Zheng 58	瑞德Reid	58.46	HS
掖478 Ye 478	瑞德Reid	93.41	HS
PH6WC	瑞德Reid	78.00	HS
9058	瑞德Reid	22.90	MR
昌7-2 Chang 7-2	唐四平头Tangsipingtou	26.82	MR
吉853 Ji 853	唐四平头Tangsipingtou	91.66	HS
浚928 Xun 928	唐四平头Tangsipingtou	66.27	HS
Mo17	兰卡斯特Lancaster	10.59	MR
A619	兰卡斯特Lancaster	42.07	HS
PH4CV	兰卡斯特Lancaster	12.66	MR
OH43	兰卡斯特Lancaster	37.22	S
齐319 Qi 319	P78599	2.82	HR
13-1077	—	23.40	MR

自交系 Inbred line	类群划分 Population	平均病情指数 Average disease index		抗性评价 Resistance evaluation
自交系 Inbred line	类群划分 Population	2016	2018	抗性评价 Resistance evaluation
B73	瑞德Reid	45.60	40.74	R
B37	瑞德Reid	57.78	28.89	R
郑58 Zheng 58	瑞德Reid	55.56	33.89	R
掖478 Ye 478	瑞德Reid	24.69	51.11	MR
PH6WC	瑞德Reid	—	55.56	MR
9058	瑞德Reid	—	26.67	R
昌7-2 Chang 7-2	唐四平头Tangsipingtou	55.56	27.78	R
吉853 Ji 853	唐四平头Tangsipingtou	20.31	23.08	R
浚928 Xun 928	唐四平头Tangsipingtou	—	30.00	R
Mo17	兰卡斯特Lancaster	24.69	23.33	R
A619	兰卡斯特Lancaster	—	27.78	R
PH4CV	兰卡斯特Lancaster	—	26.67	R
OH43	兰卡斯特Lancaster	—	34.44	R
齐319	P78599	22.84	26.67	R
13-1077	—	—	32.22	R

Resistance Evaluation of Some Commonly Used Maize Germplasm Resources to Fusarium Diseases in China

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