Two-way effect of pesticides on zeatin riboside content in both rice leaves and roots

Qiu, Zheng-Hua; Wu, Jin-Cai; Dong, Bi‐Cheng; Dong-hu, LI; Gu, Hainan

doi:10.1016/j.cropro.2004.04.005

Cited by 22 publications

(12 citation statements)

References 17 publications

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“…The present study demonstrated that triazophos and chlorantraniliprole treatments reduced the content of oxalic acid of two rice cultivars but the content of soluble sugar markedly increased, which is favorable to the feeding of N. lugens. These results confirm the theory of two-way effect of pesticide on rice and on N. lugens proposed by Wu et al (2001Wu et al ( , 2004 and Qiu et al (2004).…”

Section: Discussionsupporting

confidence: 92%

Effects of Pesticide Applications on the Biochemical Properties of Transgenic cry 2A Rice and the Life History Parameters of Nilaparvata lugens Stål (Homptera: Delphacidae)

Shi

Yang

et al. 2013

Journal of Integrative Agriculture

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Effects of transgenic Bt rice on non-target pests following pesticides applications play an important role in evaluating the ecological safety of transgenic rice. Changes of the life history parameters of laboratory population of Nilaparvata lugens feeding on transgenic Bt rice T2A-1 and its parental line cv. MH63 as the control, and the contents of oxalic acid and soluble sugar following three pesticides (triazophos, jinggangmycin and chlorantraniliprole) treatments were investigated in this paper. Results showed that the population parameters of N. lugens and the physiological and biochemical parameters of rice did not differ significantly between T2A-1 and MH63 without pesticide application.. But, the ER (emergence rate), the NN (nymphal number of next generation), and the IP (index of population trend) on T2A-1 treated with 10 ppm of triazophos were significantly higher than those on MH63, respectively, while the HB (hatchability) on T2A-1 treated with the three pesticides were lower obviously than those on MH 63 (Table 1-3). Furthermore, the content of oxalic acid in MH63 treated with 20 ppm triazophos and, 40 and 80 ppm chlorantraniliprole was significantly higher than that in T2A-1, while the content of soluble sugar in T2A-1 treated with 400 ppm jinggangmycin was significantly higher than that in MH63, The results above indicated that triazophos in a low dose could cause a more favor of T2A-1 to population growth of N. lugens compared with MH 63.

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Section: Discussionsupporting

confidence: 92%

Effects of Pesticide Applications on the Biochemical Properties of Transgenic cry 2A Rice and the Life History Parameters of Nilaparvata lugens Stål (Homptera: Delphacidae)

Shi

Yang

et al. 2013

Journal of Integrative Agriculture

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“…Previous studies indicated that foliar sprays of imidacloprid, buprofezin, and triazophos reduced the photosynthetic rate of rice leaves and also produced several other physiological and biochemical changes in rice plants (Luo et al 2002;Qiu et al 2004;Wu et al 2001Wu et al , 2003. These alterations in rice plants resulting from pesticide applications indirectly induced changes in reproductive rates of N. lugens and Tryporyza incertulas (Walker) (Lepidoptera: Pyralidae) (Wang et al 2005;Wu et al 2001).…”

Section: Discussionmentioning

confidence: 97%

Effects of imidacloprid on the orientation behavior and parasitizing capacity of Anagrus nilaparvatae, an egg parasitoid of Nilaparvata lugens

Liu¹,

Bao²,

Shi³

et al. 2010

BioControl

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Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymaridae), is an egg parasitoid of rice planthoppers, Nilaparvata lugens (Stål) (Homoptera: Delphacidae). This study evaluated effects of the insecticide imidacloprid on orientation behavior and parasitizing capacity of A. nilaparvatae. Sub-lethal concentrations of imidacloprid (LC 20 and LC 10 ) disrupted the foraging ability of A. nilaparvatae exposed to imidacloprid through contact or oral routes. Some survivors did not respond to volatiles from N. lugensinfested plants. Responsive individuals were equally attracted to volatiles from N. lugens-infested and healthy plants. Volatiles emitted from rice plants treated with a low concentration of imidacloprid were more attractive to A. nilaparvatae than those from plants treated with a high concentration of imidacloprid. Parasitism of N. lugens by A. nilaparvatae that survived contact with sub-lethal concentrations of imidacloprid did not decrease significantly. When A. nilaparvatae were fed imidacloprid-honey mixture, parasitism rates were 1.49% and 0%, respectively, significantly lower than those of the control (9.58%). Parasitism of N. lugens eggs in high concentration of imidacloprid treated rice plants by A. nilaparvatae decreased significantly. These effects involving disturbed foraging ability and reduced parasitizing capacity of A. nilaparvatae indicated that imidacloprid could decrease the performance of this parasitoid.

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“…For example, partial root zone drying reduced zeatin and zeatin riboside in roots, shoot tips, and buds by 60%, 50%, and 70%, respectively, in grapevines (Vitis vinifera) (Stoll et al, 2000). Qiu et al (2004) also demonstrated that chemical inputs such as pesticides altered zeatin riboside content in rice roots. Such information and further understanding of the molecular basis of storage root initiation will further assist in planning research studies that attempt to further identify the likely causes of unexpected or unexplained storage root variability or suboptimal yield at harvest.…”

Section: Discussionmentioning

confidence: 96%

Development of a Prototype Bayesian Network Model Representing the Relationship between Fresh Market Yield and Some Agroclimatic Variables Known to Influence Storage Root Initiation in Sweetpotato

Villordon¹,

Solis²,

LaBonte³

et al. 2010

horts

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A prototype phenology-driven Bayesian belief network (BBN) model, named BxNET, was developed to represent the relationship between fresh market yield (U.S. #1 grade) and agroclimatic variables known to influence the critical storage root initiation stages in ‘Beauregard’ sweetpotato. This data-driven model was developed from experimental data collected over 3 years of field trials in which management variables were kept as uniform as possible. The BBN was developed assuming that soil moisture measured at the 15-cm depth was not a limiting variable during the first 20 days after transplanting, during which the onset of storage root initiation determined the majority of storage root yield at harvest. The absence of influence from weeds, disease, insect pests, and chemical injury was also assumed. Accuracy of the fully parameterized working prototype was estimated through leave-one-out cross-validation (14% error rate), validation on an independent test data set (20% error rate), and area under the receiving operator characteristic curve (0.59) analysis. As a result of its empirical nature, BxNET is only applicable to the cultivar, location, and the limited set of environmental (air temperature, soil temperature, relative humidity, solar radiation) and management variables as defined in the 3-year study. This beta-level model can serve as a foundation for the development of a final working model through further testing and validation. Additional validation data may require revision of the current model structure and conditional probabilities. These validation studies will also allow the model to be used in other locations. BxNET can be expanded to include other causal variables such as weed incidence, disease presence, insects, and chemical injury. Such an expansion can lead to the development of a model-based decision support system for sweetpotato production. Such a system can help model alternative management scenarios and determine the most reasonable management interventions to achieve optimum yield outcomes under different agroclimatic conditions.

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Two-way effect of pesticides on zeatin riboside content in both rice leaves and roots

Cited by 22 publications

References 17 publications

Effects of Pesticide Applications on the Biochemical Properties of Transgenic cry 2A Rice and the Life History Parameters of Nilaparvata lugens Stål (Homptera: Delphacidae)

Effects of Pesticide Applications on the Biochemical Properties of Transgenic cry 2A Rice and the Life History Parameters of Nilaparvata lugens Stål (Homptera: Delphacidae)

Effects of imidacloprid on the orientation behavior and parasitizing capacity of Anagrus nilaparvatae, an egg parasitoid of Nilaparvata lugens

Development of a Prototype Bayesian Network Model Representing the Relationship between Fresh Market Yield and Some Agroclimatic Variables Known to Influence Storage Root Initiation in Sweetpotato

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