Development of novel peanut germplasm with resistance to late leaf spot and elite yield and plant-type characteristics

doi:10.19802/j.issn.1007-9084.2021316

Abstract

Abstract:

Linkage between late leaf spot resistance and poor yield and plant type traits of peanut makes it difficult to find out elite comprehensive materials in China. In this study, the parents and the recombinant inbreed lines （RILs） population derived from Zhonghua 5 × ICGV 86699 were assessed for their resistance to late leaf spot, and also yield and plant-type traits. Results revealed that the late leaf spot disease scores were investigated in 4 environments, and a total of 18 stable highly resistant and 26 resistant lines were identified. In 2 environments, 38 lines were selected with elite traits of hundred pod weight （≥180.0 g） and pods per plant （≥20.0）. Similarly, a total of 54 lines were selected with moderate main stem height （30-60 cm） and total number of branches （≤20.0） in the 2 environments. By comprehensive analysis of late leaf spot disease scores, yield-related and plant-type related traits, 4 novel germplasm were found. Among them, one had high resistance to late spot disease with high yield and elite plant type related traits, 3 had moderate resistance with high yield and elite plant type related traits.

Key words: peanut, late leaf spot, yield, plant type, novel germplasm

CLC Number:

S565.2

Peng-xia GUO, Yu YOU, Bo-lun YU, Jian-bin GUO, Huai-yong LUO, Li HUANG, Nian LIU, Wei-gang CHEN, Yong LEI, Bo-shou LIAO, Li-ying YAN, Hui-fang JIANG, Xiao-jing ZHOU. Development of novel peanut germplasm with resistance to late leaf spot and elite yield and plant-type characteristics[J]. CHINESE JOURNAL OF OIL CROP SCIENCES, 2023, 45(1): 95-101.

Figures/Tables 7

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Table 1

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株系 Line	E1	E2	E3	E4
XA003	1.3	2.3	2.2	3.0
XA026	3.0	4.3	3.0	3.0
XA036	2.7	3.0	2.0	2.3
XA053	2.7	5.3	1.7	3.0
XA056	2.0	3.0	2.5	3.0
XA073	2.0	3.0	3.0	2.7
XA079	2.7	3.0	2.5	3.0
XA083	2.3	3.0	3.0	2.0
XA086	2.0	2.7	1.8	3.0
XA099	2.7	3.0	1.9	2.3
XA124	3.0	3.0	3.0	2.0
XA125	2.0	3.0	3.0	2.0
XA128	1.3	2.0	2.2	4.0
XA132	3.0	3.0	3.0	3.0
XA133	3.0	3.0	2.2	3.0
XA134	3.0	3.0	2.0	2.7
XA137	2.0	1.3	2.4	2.3
XA138	1.3	2.7	6.0	2.0
中花5号Zhonghua 5	8.3	8.0	8.1	8.0
ICGV 86699	1.3	1.3	2.3	2.0

株系 Line	百果重 HPW /g		单株果数 NPP		株系 Line	百果重 HPW /g		单株果数 NPP
株系 Line	E2	E3	Line	E4	株系 Line	E2	E3	E2	E4
XA004	265.0	240.0	20.9	22.0	XA056	188.0	191.3	21.9	22.0
XA005	181.8	189.2	28.8	22.5	XA057	202.0	192.6	22.2	21.5
XA006	200.4	222.2	32.1	21.5	XA061	218.8	216.6	30.0	22.8
XA013	216.8	202.2	31.9	21.0	XA064	232.6	203.0	28.5	24.8
XA017	250.8	209.5	26.5	25.5	XA068	186.6	192.4	27.7	25.0
XA026	193.6	215.9	27.3	24.2	XA069	224.8	212.2	28.2	27.0
XA028	305.5	249.8	21.7	24.5	XA072	254.8	214.6	25.2	20.8
XA030	258.4	208.3	22.5	22.5	XA073	185.2	190.5	26.6	22.0
XA031	250.0	218.2	26.0	24.5	XA094	212.4	210.6	22.5	21.5
XA033	251.5	221.9	20.0	25.3	XA102	225.4	202.2	23.9	25.0
XA034	242.5	225.5	27.1	22.0	XA108	246.0	225.3	26.2	20.0
XA037	234.4	222.5	21.6	23.0	XA125	186.2	211.9	28.2	22.8
XA038	205.5	196.5	20.6	22.5	XA127	264.6	213.8	28.3	24.5
XA044	227.0	194.4	22.2	22.5	XA131	254.4	205.6	24.5	21.3
XA045	252.0	200.0	22.7	20.3	XA145	246.8	200.3	22.0	25.0
XA046	214.4	180.8	22.6	23.5	XA147	227.0	201.4	22.3	22.5
XA047	192.4	193.0	26.0	21.7	XA149	192.8	187.5	24.6	24.8
XA050	228.0	187.0	27.1	24.0	XA164	225.2	215.2	20.5	27.0
XA054	275.4	212.0	24.1	20.3	XA166	241.2	212.2	22.2	24.0

株系 Line	主茎高 HMS /cm		总分枝数 TBN		株系 Line	主茎高 HMS /cm		总分枝数 TBN
株系 Line	E2	E3	E2	E3	株系 Line	E2	E3	E2	E3
XA005	42.0	48.6	9.0	10.0	XA065	30.6	46.4	14.6	15.5
XA006	52.3	50.7	9.2	6.8	XA068	30.0	49.5	16.2	10.8
XA008	45.0	57.4	18.0	14.7	XA069	38.6	38.6	9.6	11.8
XA013	34.6	50.5	11.2	14.7	XA070	41.0	39.3	11.2	12.9
XA016	37.8	44.5	11.0	11.7	XA071	36.0	43.4	10.8	11.2
XA018	36.2	49.3	16.2	19.2	XA072	34.6	38.8	10.8	10.9
XA019	30.0	37.9	9.4	15.0	XA084	31.4	47.3	11.0	8.6
XA026	56.6	60.0	13.0	13.3	XA091	30.4	55.9	12.2	17.4
XA027	35.4	55.9	12.0	16.2	XA092	34.8	45.7	9.4	16.8
XA030	33.6	39.5	8.6	17.0	XA095	34.0	50.8	10.0	15.6
XA031	38.0	41.8	11.4	18.6	XA098	36.8	46.3	9.0	12.0
XA037	35.8	38.1	9.4	16.2	XA102	33.2	56.2	9.8	13.6
XA039	40.0	41.7	11.6	18.0	XA103	34.6	46.3	10.4	16.8
XA041	42.6	53.3	16.2	11.1	XA108	39.8	45.6	9.8	14.4
XA042	35.0	38.8	10.4	15.2	XA109	41.0	40.2	15.4	17.2
XA043	33.2	38.6	10.2	12.8	XA111	39.0	45.3	10.4	19.8
XA044	35.8	38.7	9.0	11.5	XA113	42.6	56.8	19.0	18.2
XA045	36.8	49.4	11.2	15.4	XA114	39.6	42.8	9.2	8.1
XA051	40.0	44.7	9.0	16.0	XA127	38.6	43.8	13.0	16.6
XA052	38.8	47.9	11.8	10.8	XA131	38.0	41.5	10.2	14.4
XA054	42.0	39.4	10.6	9.9	XA144	30.0	48.8	10.2	12.0
XA055	40.4	39.6	11.0	14.4	XA145	31.8	47.4	10.0	12.6
XA057	49.8	50.1	13.1	12.1	XA149	39.0	56.4	18.4	17.4
XA058	36.6	33.1	10.6	10.6	XA150	40.4	58.8	11.2	12.5
XA059	44.4	57.4	10.6	17.5	XA151	30.0	58.9	15.6	15.9
XA061	37.0	47.9	18.6	16.1	XA162	38.6	58.1	10.4	16.9
XA064	40.4	44.0	10.4	10.3	XA164	37.8	51.1	8.8	15.2

	晚斑病 LLS	百果重 HPW	单株结果数 NPP	主茎高 HMS	总分枝数 TBN
LLS	1	0.606**	0.152*	-0.528**	-0.578**
HPW		1	-0.078	-0.345**	-0.536**
NPP			1	-0.211**	-0.014
HMS				1	0.379**
TBN					1

株系 Line	晚斑病				百果重		单株结果数		主茎高		总分枝数
	LLS				HPW /g		NPP		HMS /cm		TBN
	E1	E2	E3	E4	E2	E3	E2	E4	E2	E3	E2	E3
XA005	4.0	5.0	4.5	4.3	181.8	189.2	28.8	22.0	42.0	48.6	9.0	10.1
XA006	2.0	3.0	3.8	4.7	200.4	222.2	32.1	21.5	52.3	50.7	9.2	6.8
XA026	3.0	4.3	3.0	3.0	193.6	215.9	27.3	24.2	56.6	60.0	13.0	13.3
XA057	4.0	4.0	3.9	3.7	202.0	192.6	22.2	21.5	49.8	50.1	13.1	12.1