Effects of Foliar Fertilizer Spraying on Black Point, Yield and Quality of Spring Wheat

doi:10.11924/j.issn.1000-6850.casb2022-0948

Abstract

Abstract:

To provide the theoretical basis for the high-quality and high-yield cultivation of the strong gluten spring wheat ‘Xinchun38’, the effect of foliar fertilizer (KH₂PO₄ and brassinolide) in different periods of filling stage on black point disease, yield and quality was studied. The results showed that two times mixed spraying of KH₂PO₄ and brassinolide increased yield by 27.9% compared with the control, 1000-kernel weight could be significantly increased, the number of sterile spikelets decreased, and the black point rate reduced from 21% to 16.8%. After a mixed spray of foliar fertilizer, the protein content, wet gluten content and precipitation values of the granules increased by 1%, 0.7% and 4.54% compared with the control, respectively. When single spraying KH₂PO₄, the dough development time and stability time increased by 0.6 and 0.7 min. The tensile curve and the stretch area increased by 22 cm² and 91 BU. The single spraying of brassinolide had no significant effect. Therefore, early mixed spraying of foliar fertilizer in wheat filling stage can effectively reduce the occurrence of black point of spring wheat ‘Xinchun38’ and improve yield and quality.

Key words: Xinchun38, foliar fertilizer, black point, quality

KONG Dezhen, SANG Wei, XU Hongjun, HAN Xinnian, NIE Yingbin, TIAN Xiaoming. Effects of Foliar Fertilizer Spraying on Black Point, Yield and Quality of Spring Wheat[J]. Chinese Agricultural Science Bulletin, 2023, 39(33): 14-18.

Figures/Tables 5

References 25

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处理	千粒重/g	小区产量/kg	小穗结实率/%	不育小穗数	处理	千粒重/g	小区产量/kg	小穗结实率/%	不育小穗数
A	57.6e	2.01d	116.2f	2.3d	G	55.5bc	2.13 f	99.2a	2.4d
B	55.3b	2.05 e	107.3bc	2.0bc	H	55.5a	2.23 g	108.5bcd	2.4d
C	56.2bc	2.14 f	114.9f	1.8b	I	58.0e	1.72 a	111.6de	2.2cd
D	55.9bc	1.92 b	114.1ef	2.0bc	J	57.0e	2.20 h	110.6cd	2.0bc
E	57.4de	2.06 e	110.1cd	2.2cd	K	55.9bc	1.92 bc	101.1a	2.9e
F	59.1f	1.95 c	106.8b	2.3d	L	56.5cd	1.94 bc	101.9a	1.4a

处理	千粒重/g	小区产量/kg	小穗结实率/%	不育小穗数	处理	千粒重/g	小区产量/kg	小穗结实率/%	不育小穗数
A	57.6e	2.01d	116.2f	2.3d	G	55.5bc	2.13 f	99.2a	2.4d
B	55.3b	2.05 e	107.3bc	2.0bc	H	55.5a	2.23 g	108.5bcd	2.4d
C	56.2bc	2.14 f	114.9f	1.8b	I	58.0e	1.72 a	111.6de	2.2cd
D	55.9bc	1.92 b	114.1ef	2.0bc	J	57.0e	2.20 h	110.6cd	2.0bc
E	57.4de	2.06 e	110.1cd	2.2cd	K	55.9bc	1.92 bc	101.1a	2.9e
F	59.1f	1.95 c	106.8b	2.3d	L	56.5cd	1.94 bc	101.9a	1.4a

处理	F	J	G	K	H	L
B	-0.894	0.998^*	0.905	-0.587	0.990	0.878
C	-0.907	0.575	0.230	-0.999^*	0.509	0.921
D	-0.693	0.961	0.995	-0.283	0.980	0.667

处理	F	J	G	K	H	L
B	-0.894	0.998^*	0.905	-0.587	0.990	0.878
C	-0.907	0.575	0.230	-0.999^*	0.509	0.921
D	-0.693	0.961	0.995	-0.283	0.980	0.667

处理	粗蛋白质含量/%	湿面筋含量/%	面筋指数/%	沉降值/mL	处理	粗蛋白质含量/%	湿面筋含量%	面筋指数/%	沉降值/mL
A	14.85	32.61	65.33	34	G	15.3	33.05	64.90	33.5
B	15.05	33.15	65.94	33.5	H	15.1	33.51	65.90	35
C	15.05	32.77	64.64	33.5	I	14.85	32.90	65.88	32.5
D	14.85	32.70	65.38	33	J	14.9	33.34	65.90	33
E	15.15	33.46	64.70	33.5	K	15.05	32.47	65.32	34
F	15.3	33.88	63.68	35	L	15.05	33.82	65.80	34