The Responses of Winter-wheat Yield to Elevated Temperature Varied with Soil Types

doi:10.11924/j.issn.1000-6850.casb20200300181

Abstract

Abstract:

The research aimed to reveal the characteristics of winter wheat yield in response to elevated temperature in different soil types. The Free Air Temperature Increased (FATI) was used to mimic elevated temperature during the whole growing season. The soil samples were Phaeozem, Burozem, Aeolian sand soil, Fluvo-aquic soil, Krasnozem and Latosol zone. Results showed that plant height, above-ground biomass, grain number per spike and yield of winter wheat increased by 11.5%, 17.7%, 12.3% and 12.8%, respectively, compared with those of the control treatment. There were different variations in plant height in response to soil types under elevated temperature. The maximal increase of plant height was found in Fluvo-aquic soil, while the minimum was in Aeolian sand soil. Elevated temperature decreased the wheat yield in Phaeozem by 33.3%, while increased that in Aeolian soil and Krasnozem by 44.7% and 43.2% compared with those of the control treatment. This study indicates that the productive potential of wheat differs in different cultivated regions, and the results could provide certain reference for wheat production adaption in different climate regions to future climate change.

Key words: winter wheat, warming, soil type, yield

CLC Number:

S512.1

Zhao Hongfei, Pan Shiqiu, Qiao Yunfa, Gao Yaxiaoling, Miao Shujie. The Responses of Winter-wheat Yield to Elevated Temperature Varied with Soil Types[J]. Chinese Agricultural Science Bulletin, 2021, 37(2): 74-79.

Figures/Tables 3

References 30

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土壤类型	增温	有效穗数/（个/株）	穗粒数/（个/株）	千粒重/g	产量/（g/盆）
黑土	CK	5.3±0.2	42.2±0.5	46.47±1.88	31.42±1.95
黑土	eT	4.4±0.4	43.3±0.4	37.15±4.63	20.97±1.94
棕壤	CK	5.1±0.4	44.5±1.0	40.92±0.77	27.82±2.59
棕壤	eT	5.2±0.4	49.3±2.1	38.74±2.00	29.81±1.70
风沙土	CK	3.4±0.4	38.2±5.0	40.41±2.69	15.47±1.13
风沙土	eT	4.2±0.4	39.3±2.9	45.54±2.00	22.39±1.24
潮土	CK	3.9±0.4	34.6±1.2	36.37±3.96	14.80±2.53
潮土	eT	4.0±0.3	43.0±1.0	38.12±2.70	19.52±1.35
红壤	CK	3.4±0.4	41.0±2.0	39.41±2.59	16.56±1.74
红壤	eT	4.2±0.5	47.2±5.0	40.70±4.23	23.72±2.42
砖红壤	CK eT	4.2±0.3	41.1±0.5	36.17±2.05	18.63±1.48
砖红壤	CK eT	3.8±0.5	49.1±2.0	43.36±2.60	24.24±3.05
LSD(0.05)		1.1	7.5	8.59	6.01
土壤类型		0.004^**	0.016^*	0.476	0.000^**
增温		0.691	0.002^**	0.703	0.031^*
土壤类型×增温		0.232	0.541	0.244	0.002^**

土壤类型	增温	有效穗数/（个/株）	穗粒数/（个/株）	千粒重/g	产量/（g/盆）
黑土	CK	5.3±0.2	42.2±0.5	46.47±1.88	31.42±1.95
黑土	eT	4.4±0.4	43.3±0.4	37.15±4.63	20.97±1.94
棕壤	CK	5.1±0.4	44.5±1.0	40.92±0.77	27.82±2.59
棕壤	eT	5.2±0.4	49.3±2.1	38.74±2.00	29.81±1.70
风沙土	CK	3.4±0.4	38.2±5.0	40.41±2.69	15.47±1.13
风沙土	eT	4.2±0.4	39.3±2.9	45.54±2.00	22.39±1.24
潮土	CK	3.9±0.4	34.6±1.2	36.37±3.96	14.80±2.53
潮土	eT	4.0±0.3	43.0±1.0	38.12±2.70	19.52±1.35
红壤	CK	3.4±0.4	41.0±2.0	39.41±2.59	16.56±1.74
红壤	eT	4.2±0.5	47.2±5.0	40.70±4.23	23.72±2.42
砖红壤	CK eT	4.2±0.3	41.1±0.5	36.17±2.05	18.63±1.48
砖红壤	CK eT	3.8±0.5	49.1±2.0	43.36±2.60	24.24±3.05
LSD(0.05)		1.1	7.5	8.59	6.01
土壤类型		0.004^**	0.016^*	0.476	0.000^**
增温		0.691	0.002^**	0.703	0.031^*
土壤类型×增温		0.232	0.541	0.244	0.002^**