Results 21 to 30 of about 13,959 (275)

Levels of genetic polymorphism: marker loci versus quantitative traits [PDF]

open access: yes, 1998
Species are the units used to measure ecological diversity and alleles are the units of genetic diversity. Genetic variation within and among species has been documented most extensively using allozyme electrophoresis.
Butlin R. K.   +9 more
core   +3 more sources

EFEKTIVITAS LIMBAH TEMBAKAU TERHADAP WERENG COKLAT DAN PENGARUHNYA TERHADAP LABA-LABA PREDATOR

open access: yesCaraka Tani: Journal of Sustainable Agriculture, 2017
Nilaparvata lugens Stal.is one of plant pest which damages rice field. The waste of tobacco contains nicotine which can use as botanical insecticide. This research was aimed to find out the effectiveness of tobacco waste in controlling brown planthopper ...
Harlina Kusuma Tuti   +2 more
doaj   +1 more source

Take-off time of the first generation of the overwintering small brown planthopper, Laodelphax striatellus in the temperate zone in East Asia. [PDF]

open access: yesPLoS ONE, 2015
Overseas migration of the small brown planthopper, Laodelphax striatellus (Fallén), occurs during the winter wheat harvest season in East Asia. Knowing the take-off time of emigrating L.
Sachiyo Sanada-Morimura   +6 more
doaj   +1 more source

Oxalic Acid Inhibits Feeding Behavior of the Brown Planthopper via Binding to Gustatory Receptor Gr23a

open access: yesCells, 2023
Plants produce diverse secondary compounds as natural protection against microbial and insect attack. Most of these compounds, including bitters and acids, are sensed by insect gustatory receptors (Grs).
Kui Kang   +10 more
doaj   +1 more source

Planthopper-Secreted Salivary Calmodulin Acts as an Effector for Defense Responses in Rice

open access: yesFrontiers in Plant Science, 2022
The brown planthopper (Nilaparvata lugens, BPH) and small brown planthopper (Laodelphax striatellus, SBPH) are major pests of rice (Oryza sativa) in Asia. These piercing-sucking insects secrete saliva into the host during feeding.
Jianmei Fu   +12 more
doaj   +1 more source

Dynamical modeling of the control of brown planthoppers by Beauveria bassiana and Cyrtorhinus lividipennis

open access: yesAdvances in Difference Equations, 2019
In this work, the control of brown planthopper, a major pest of rice, when a biological control agent (Cyrtorhinus lividipennis) and a pathogen (Beauveria bassiana) are utilized is investigated mathematically.
Chontita Rattanakul
doaj   +1 more source

Pyramiding insect and disease resistance in an elite indica rice cultivar ASD16

open access: yesBiologia Plantarum, 2020
Pyramiding transgenes of interest is one of the strategies to engineer multiple stress resistance in crop plants. Transgenic plants which stably express different genes can be hybridized to bring these genes together in one plant.
T. RAJESH   +8 more
doaj   +1 more source

Description of the immature stages of the planthopper Lacertinella australis (Hemiptera: Delphacidae) [PDF]

open access: yes, 2014
The five immature stages of the planthopper Lacertinella australis(Remes Lenicov and Rossi Batiz) (Hemiptera: Delphacidae: Saccharosydnini) are described and illustrated. The main characters that al-lowed us to distinguish the various
Marino, Ana Maria   +1 more
core   +2 more sources

Adaptation by the Brown Planthopper to Resistant Rice: A Test of Female-Derived Virulence and the Role of Yeast-like Symbionts

open access: yesInsects, 2021
The adaptation by planthoppers to feed and develop on resistant rice is a challenge for pest management in Asia. We conducted a series of manipulative experiments with the brown planthopper (Nilaparvata lugens (Stål)) on the resistant rice variety IR62 ...
Finbarr G. Horgan   +4 more
doaj   +1 more source

Classification of rice planthoppers based on shape descriptors

open access: yesThe Journal of Engineering, 2019
Here, classification of rice planthopper (RPH) based on shape descriptors was addressed to solve the low semantics problem of shape features in traditional RPH (mainly including the whiteback planthopper (Sogatella furcifera (Horváth)), the brown ...
Saihua Zhu   +3 more
doaj   +1 more source

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