Matching Sentences: [ Sen. 8, subscore: 2.00 ]: Similarly , under no-choice conditions , planthoppers laid 29% fewer eggs in D518 than in IR64 , but they oviposited more in D1131 and TN1 . Honeydew excretion was greater on D1131 seedlings but slightly lower on D518 than on IR64 . Nymphal survival and adult female weight did not differ among rice cultivars . D518 showed higher tolerance of N lugens infestations than IR64 . Genetic analysis of the F1 , F2 , and F3 populations derived from D518 x IR64 revealed that resistance in D518 is dominant and controlled by a single gene . Despite the variation in resistance to N lugens , both mutants and IR64 performed similarly in the field . The mutant D518 is a new source of durable resistance to N lugens , mainly due to enhanced antixenosis to female hoppers for settling and oviposition . [ Sen. 3, subscore: 1.00 ]: Varietal mutants can be useful for developing durable resistance , understanding categories of resistance , and identifying candidate genes involved in defense responses . We used mutants of rice IR64 to isolate new sources of resistance to the planthopper Nilaparvata lugens ( Stal ) ( Hemiptera : Delphacidae ) . We compared two mutants that showed a gain and loss of resistance to N lugens , to determine the categories of resistance to this pest Under choice tests , female planthoppers avoided settling and laid fewer eggs on the resistant mutant D518 than on the susceptible mutant D1131 , susceptible check TN1 , and wild-type IR64 , indicating that antixenosis was the resistance category . Similarly , under no-choice conditions , planthoppers laid 29% fewer eggs in D518 than in IR64 , but they oviposited more in D1131 and TN1 . Honeydew excretion was greater on D1131 seedlings but slightly lower on D518 than on IR64 . Nymphal survival and adult female weight did not differ among rice cultivars . D518 showed higher tolerance of N lugens infestations than IR64 . [ Sen. 4, subscore: 1.00 ]: Varietal mutants can be useful for developing durable resistance , understanding categories of resistance , and identifying candidate genes involved in defense responses . We used mutants of rice IR64 to isolate new sources of resistance to the planthopper Nilaparvata lugens ( Stal ) ( Hemiptera : Delphacidae ) . We compared two mutants that showed a gain and loss of resistance to N lugens , to determine the categories of resistance to this pest Under choice tests , female planthoppers avoided settling and laid fewer eggs on the resistant mutant D518 than on the susceptible mutant D1131 , susceptible check TN1 , and wild-type IR64 , indicating that antixenosis was the resistance category . Similarly , under no-choice conditions , planthoppers laid 29% fewer eggs in D518 than in IR64 , but they oviposited more in D1131 and TN1 . Honeydew excretion was greater on D1131 seedlings but slightly lower on D518 than on IR64 . Nymphal survival and adult female weight did not differ among rice cultivars . D518 showed higher tolerance of N lugens infestations than IR64 . Genetic analysis of the F1 , F2 , and F3 populations derived from D518 x IR64 revealed that resistance in D518 is dominant and controlled by a single gene . [ Sen. 5, subscore: 1.00 ]: Varietal mutants can be useful for developing durable resistance , understanding categories of resistance , and identifying candidate genes involved in defense responses . We used mutants of rice IR64 to isolate new sources of resistance to the planthopper Nilaparvata lugens ( Stal ) ( Hemiptera : Delphacidae ) . We compared two mutants that showed a gain and loss of resistance to N lugens , to determine the categories of resistance to this pest Under choice tests , female planthoppers avoided settling and laid fewer eggs on the resistant mutant D518 than on the susceptible mutant D1131 , susceptible check TN1 , and wild-type IR64 , indicating that antixenosis was the resistance category . Similarly , under no-choice conditions , planthoppers laid 29% fewer eggs in D518 than in IR64 , but they oviposited more in D1131 and TN1 . Honeydew excretion was greater on D1131 seedlings but slightly lower on D518 than on IR64 . Nymphal survival and adult female weight did not differ among rice cultivars . D518 showed higher tolerance of N lugens infestations than IR64 . Genetic analysis of the F1 , F2 , and F3 populations derived from D518 x IR64 revealed that resistance in D518 is dominant and controlled by a single gene . Despite the variation in resistance to N lugens , both mutants and IR64 performed similarly in the field . [ Sen. 7, subscore: 1.00 ]: We compared two mutants that showed a gain and loss of resistance to N lugens , to determine the categories of resistance to this pest Under choice tests , female planthoppers avoided settling and laid fewer eggs on the resistant mutant D518 than on the susceptible mutant D1131 , susceptible check TN1 , and wild-type IR64 , indicating that antixenosis was the resistance category . Similarly , under no-choice conditions , planthoppers laid 29% fewer eggs in D518 than in IR64 , but they oviposited more in D1131 and TN1 . Honeydew excretion was greater on D1131 seedlings but slightly lower on D518 than on IR64 . Nymphal survival and adult female weight did not differ among rice cultivars . D518 showed higher tolerance of N lugens infestations than IR64 . Genetic analysis of the F1 , F2 , and F3 populations derived from D518 x IR64 revealed that resistance in D518 is dominant and controlled by a single gene . Despite the variation in resistance to N lugens , both mutants and IR64 performed similarly in the field . The mutant D518 is a new source of durable resistance to N lugens , mainly due to enhanced antixenosis to female hoppers for settling and oviposition . [ Sen. 10, subscore: 1.00 ]: Nymphal survival and adult female weight did not differ among rice cultivars . D518 showed higher tolerance of N lugens infestations than IR64 . Genetic analysis of the F1 , F2 , and F3 populations derived from D518 x IR64 revealed that resistance in D518 is dominant and controlled by a single gene . Despite the variation in resistance to N lugens , both mutants and IR64 performed similarly in the field . The mutant D518 is a new source of durable resistance to N lugens , mainly due to enhanced antixenosis to female hoppers for settling and oviposition .
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