6%寡糖·链蛋白对不同定植期和密度下番茄黄化曲叶病毒病防控效果的研究

doi:10.16178/j.issn.0528-9017.20230906

摘要/Abstract

摘要：

为探究不同定植期和不同密度对日光温室番茄病毒病的防控效果,以期为秋茬番茄高效利用光热资源和茬口安排提供理论依据。本研究进行了不同定植期和密度试验。结果表明,T3和T4处理番茄病毒病发病率和病情指数显著降低,防控效果达74.57%和92.75%。T2处理病毒病发病率较T1处理低25.52百分点,T4处理病毒病发病率较T3处理低13.33百分点。SPAD值、氮含量及净光合速率以T4处理较高。产量以T4处理最高,且显著高于其他处理,T2、T3、T4处理分别较T1处理增产47.05%、63.50%、76.34%。所以新疆和田地区避开8月高温干旱时期定植可有效降低病毒病的发生,为保证秋冬茬番茄能在12月底采收完成,应减少留果数,增加密度,以达到增产的目的。

关键词: 番茄, 定植期, 种植密度, 病毒病, 防控效果

Abstract:

In order to explore the effect of different planting periods and different densities on the prevention and control of tomato virus disease in solar greenhouse, and provide a theoretical basis for the efficient use of light and heat resources and stubble arrangement of autumn tomato, different planting period and density tests were designed. The results showed that the incidence and disease index of tomato virus disease in T3 and T4 treatments were significantly reduced, and the prevention and control effects were 74.57% and 92.75%, respectively. The incidence of viral disease in T2 treatment was 25.52 percentage points lower than that in T1 treatment, and the incidence of viral disease in T4 treatment was 13.33 percentage points lower than that in T3 treatment. SPAD value, nitrogen content and net photosynthetic rate were higher in T4 treatment. The yield of T4 treatment was significantly higher than that of other treatments, and the yield of T2, T3 and T4 was 47.05%, 63.50% and 76.34% higher than that of T1 treatment, respectively. Therefore, planting in Hotan Area of Xinjiang to avoid the high temperature and drought period in August can effectively reduce the occurrence of virus disease. In order to ensure that tomatoes in autumn and winter can be harvested in December, the number of remaining fruits should be reduced and the density should be increased to achieve the purpose of increasing yield.

Key words: tomato, planting period, planting density, virus disease, prevention and control effect

中图分类号:

S641.2

闫曼曼, 郑剑超. 6%寡糖·链蛋白对不同定植期和密度下番茄黄化曲叶病毒病防控效果的研究[J]. 浙江农业科学, 2024, 65(12): 2964-2967.

YAN Manman, ZHENG Jianchao. Study on the prevention and control effect of 6% oligosaccharides·β chain protein on tomato yellow leaf curl virus disease under different planting periods and densities[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(12): 2964-2967.

图/表 5

参考文献 9

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处理	发病率/%	病情指数	防控效果/%
T1	73.35	18.03	0
T2	47.83	13.32	34.79
T3	18.65	7.63	74.57
T4	5.32	0.98	92.75

处理	发病率/%	病情指数	防控效果/%
T1	73.35	18.03	0
T2	47.83	13.32	34.79
T3	18.65	7.63	74.57
T4	5.32	0.98	92.75

处理	株高/m	茎粗/cm	叶片数	果穗数
T1	78.72±9.02 c	1.25±0.04 b	13.26±2.03 a	3.93±0.06 a
T2	108.23±10.33 a	1.34±0.03 a	15.46±1.97 a	4.34±0.05 a
T3	86.23±7.05 b	1.26±0.01 b	14.02±0.86 b	3.63±0.01 b
T4	104.42±4.16 a	1.30±0.01 a	14.52±0.06 b	3.74±0.01 b

处理	株高/m	茎粗/cm	叶片数	果穗数
T1	78.72±9.02 c	1.25±0.04 b	13.26±2.03 a	3.93±0.06 a
T2	108.23±10.33 a	1.34±0.03 a	15.46±1.97 a	4.34±0.05 a
T3	86.23±7.05 b	1.26±0.01 b	14.02±0.86 b	3.63±0.01 b
T4	104.42±4.16 a	1.30±0.01 a	14.52±0.06 b	3.74±0.01 b

处理	SAPD值	氮含量/ (mg·g^-1)	P_n/ (μmol·m^-2·s^-1)
T1	26.73±1.83 c	2.13±0.02 c	16.09±1.34 b
T2	31.23±2.03 b	2.64±0.03 b	18.52±2.09 b
T3	42.56±1.03 a	2.97±0.02 a	22.61±1.97 a
T4	45.52±3.32 a	3.24±0.03 a	24.53±2.16 a