1970
DOI: 10.1303/aez.5.145
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Mechanisms of Brown Planthopper Resistance in Mudgo Variety of Rice (Hemiptera : Delphacidae)

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Cited by 127 publications
(79 citation statements)
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“…Similar observations have also been recorded in rice varieties to brown planthopper and green leafhopper (Sogawa and Pathak 1970;Cheng and Pathak 1972;Karim 1975;Reddy and Kalode 1985;Heinrichs et al 1985;Khan and Saxena 1985b). Histology of fed tissue showed that there were no physical or mechanical barriers to prevent the insect feeding on resistant varieties where majority of the stylet sheaths reached vascular bundles (table 4).…”
Section: Feeding Behavioursupporting
confidence: 79%
See 1 more Smart Citation
“…Similar observations have also been recorded in rice varieties to brown planthopper and green leafhopper (Sogawa and Pathak 1970;Cheng and Pathak 1972;Karim 1975;Reddy and Kalode 1985;Heinrichs et al 1985;Khan and Saxena 1985b). Histology of fed tissue showed that there were no physical or mechanical barriers to prevent the insect feeding on resistant varieties where majority of the stylet sheaths reached vascular bundles (table 4).…”
Section: Feeding Behavioursupporting
confidence: 79%
“…Histology of fed tissue showed that there were no physical or mechanical barriers to prevent the insect feeding on resistant varieties where majority of the stylet sheaths reached vascular bundles (table 4). Sogawa and Pathak (1970) also did not find any mechanical barrier to feeding by N. lugens in the resistant variety, Mudgo. Cheng and Pathak (1972) concluded that resistance to N. uirescens cannot be attributed to mechanical factors.…”
Section: Feeding Behaviourmentioning
confidence: 72%
“…The application concentrations of fipronil were: 12.5 mg/l, 25 mg/l, 37.5 mg/l, 50 mg/l, 62.5 mg/l, respectively; therefore, the quantities of fipronil applied to the BPH were: 2.50ϫ10 Ϫ3 mg, 5.00ϫ10 Ϫ3 mg, 7.50ϫ10 Ϫ3 mg, 1.00ϫ10 Ϫ2 mg, 1.25ϫ10 Ϫ2 mg. Previous studies (Sogawa and Pathak, 1970) indicated a positive relationship between ingestion and honeydew excretion by BPH so in our experiments the quantity of honeydew excretion was used as an indicator of the feeding rate of the hopper. A Parafilm sachet was hung on a rice stem about 5 cm above the water surface.…”
Section: Methodsmentioning
confidence: 94%
“…In the past, researchers considered that it might be governed by the presence of chemicals confined to the phloem (Sogawa and Pathak, 1970). Bph1 was the first BPH resistance gene identified and is associated with the production of flavonoids, including SA; amino acids, such as Asp, Glu, Ala, Ser, Leu, Asn, and Val; and organic acids, such as succinic acid, malic acid, oxalic acid, and transaconitic acid (Sogawa and Pathak, 1970;Sogawa, 1976). There is now considerable evidence to suggest that induced defenses are effective and have low fitness costs.…”
Section: Discussionmentioning
confidence: 99%