Maize Varieties with Different Genotypes: Study on Yield, Drought Resistance and Water Use Efficiency

doi:10.11924/j.issn.1000-6850.casb20191100878

Abstract

Abstract:

To enhance crop drought resistance and water use efficiency, the most effective and easy technical measure is choosing new varieties, which can solve the problems of varieties used blindly and passive resistance to drought. Under the arid field of Jinzhong Basin in Shanxi Province, eleven different genotype maize varieties, which were widely applied in production, were selected as materials, three different water treatments were set up at maize jointing stage, and the differences of yield, drought resistance and water use efficiency among the test varieties were studied. The results showed that: the rank of yield and drought resistance of the varieties changed under different water treatments, ‘Dafeng30’ and ‘DikaM753’ were the best varieties that had high and stable yield and drought resistance. Under normal water supply, the yield could reach 13634 kg/hm² and 14478 kg/hm², respectively, and the drought resistance index could reach 0.999 and 1.029, respectively. After analyzing water use efficiency and water production efficiency, the results showed that irrigating 45 mm at jointing stage not only obtained higher water use efficiency, but also got the highest water production efficiency, which were 29.77 kg/(mm·hm²) and 30.92 kg/(mm·hm²), respectively. Thus, ‘Dafeng30’ and ‘DikaM753’ can be used as main varieties in production, and the use of deficit irrigation could be significant for water resources protection and the development of organic agriculture in this region.

Key words: maize, varieties, Genotypes, yield, drought resistance, water use efficiency

CLC Number:

S314

Liu Huatao, Huang Xuefang, Huang Mingjing, Zhang Dongmei, Zhang Wei, Zhao Cong. Maize Varieties with Different Genotypes: Study on Yield, Drought Resistance and Water Use Efficiency[J]. Chinese Agricultural Science Bulletin, 2020, 36(33): 12-18.

Figures/Tables 8

References 25

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品种	穗行数/行	行粒数/粒	穗粒数/粒	百粒重/g	理论产量/(kg/hm²)	显著水平
品种	穗行数/行	行粒数/粒	穗粒数/粒	百粒重/g	理论产量/(kg/hm²)	P<0.05	P<0.01
康地4574	16	38	593	30.16	10725	bcd	ABC
先玉696	17	35	589	28.25	9940	cd	ABC
京科968	16	37	585	31.52	11108	abcd	ABC
迪卡M753	20	35	699	24.28	12787	ab	AB
美锋335	16	36	553	27.88	9302	d	C
东单119	14	33	484	35.10	10179	cd	ABC
利单818	18	37	656	35.07	13811	a	A
晋单73	17	40	687	27.05	11211	abcd	ABC
屯玉4911	16	32	500	32.51	9812	cd	ABC
潞玉36	16	37	577	27.75	9643	d	BC
大丰30	16	37	606	33.38	12225	abcd	ABC

品种	穗行数/行	行粒数/粒	穗粒数/粒	百粒重/g	理论产量/(kg/hm²)	显著水平
品种	穗行数/行	行粒数/粒	穗粒数/粒	百粒重/g	理论产量/(kg/hm²)	P<0.05	P<0.01
康地4574	16	38	593	30.16	10725	bcd	ABC
先玉696	17	35	589	28.25	9940	cd	ABC
京科968	16	37	585	31.52	11108	abcd	ABC
迪卡M753	20	35	699	24.28	12787	ab	AB
美锋335	16	36	553	27.88	9302	d	C
东单119	14	33	484	35.10	10179	cd	ABC
利单818	18	37	656	35.07	13811	a	A
晋单73	17	40	687	27.05	11211	abcd	ABC
屯玉4911	16	32	500	32.51	9812	cd	ABC
潞玉36	16	37	577	27.75	9643	d	BC
大丰30	16	37	606	33.38	12225	abcd	ABC

品种	穗行数/行	行粒数/粒	穗粒数/粒	百粒重/g	理论产量/(kg/hm²)	显著水平
品种	穗行数/行	行粒数/粒	穗粒数/粒	百粒重/g	理论产量/(kg/hm²)	P<0.05	P<0.01
康地4574	16	38	590	32.73	11578	cd	BC
先玉696	17	37	631	31.96	12103	bcd	BC
京科968	16	38	613	32.20	11850	bcd	BC
迪卡M753	20	35	699	23.95	12563	bcd	BC
美锋335	16	42	684	29.73	12203	bcd	BC
东单119	15	36	532	35.83	11392	cd	BC
利单818	18	35	632	34.44	13072	bc	ABC
晋单73	18	45	809	28.35	13750	a	A
屯玉4911	16	33	528	33.82	10719	d	C
潞玉36	16	41	662	32.24	12810	bc	BC
大丰30	17	38	642	34.17	13159	bc	ABC

品种	穗行数/行	行粒数/粒	穗粒数/粒	百粒重/g	理论产量/(kg/hm²)	显著水平
品种	穗行数/行	行粒数/粒	穗粒数/粒	百粒重/g	理论产量/(kg/hm²)	P<0.05	P<0.01
康地4574	16	38	590	32.73	11578	cd	BC
先玉696	17	37	631	31.96	12103	bcd	BC
京科968	16	38	613	32.20	11850	bcd	BC
迪卡M753	20	35	699	23.95	12563	bcd	BC
美锋335	16	42	684	29.73	12203	bcd	BC
东单119	15	36	532	35.83	11392	cd	BC
利单818	18	35	632	34.44	13072	bc	ABC
晋单73	18	45	809	28.35	13750	a	A
屯玉4911	16	33	528	33.82	10719	d	C
潞玉36	16	41	662	32.24	12810	bc	BC
大丰30	17	38	642	34.17	13159	bc	ABC

品种	穗行数/行	行粒数/粒	穗粒数/粒	百粒重/g	理论产量/(kg/hm²)	显著水平
品种	穗行数/行	行粒数/粒	穗粒数/粒	百粒重/g	理论产量/(kg/hm²)	P<0.05	P<0.01
康地4574	16	41	640	32.55	12488	bcd	ABC
先玉696	18	38	664	33.12	13198	abcd	ABC
京科968	16	38	623	33.19	12455	bcd	ABC
迪卡M753	20	36	728	26.54	14478	a	A
美锋335	16	40	639	27.83	10691	d	C
东单119	15	36	538	35.59	11524	cd	BC
利单818	18	33	586	34.39	12068	bcd	ABC
晋单73	18	44	784	27.52	12930	abcd	ABC
屯玉4911	16	37	578	34.42	11923	cd	ABC
潞玉36	16	41	652	31.79	12446	bcd	ABC
大丰30	16	39	638	35.59	13634	abc	ABC