Author: Withya BuajarernPublisher:
ISBN:
Category :
Languages : en
Pages : 88
Book Description
A Study of Greenbug Resistance in Sorghum Sorghum Bicolor (L.) Moench
Author: Withya BuajarernEvaluation of Greenbug Resistance in F2 Progenies of Sorghum Bicolor (L.) Moench
Author: Kenneth D. KofoidGreenhouse and Field Performance of Sorghum, Sorghum Bicolor (L.) Moench, Resistance to Biotype E Greenbugs, Schizaphis Graminum (Rondani)
Author: Ahmad DimyatiPublisher:
ISBN:
Category : Greenbug
Languages : en
Pages : 268
Book Description
Mechanisms and Inheritance of Resistance to Greenbug (Schizaphis Graminum (Rondani)), Biotype E, in Sorghum (Sorghum Bicolor (L.) Moench)
Author: Alfred Gilbert Olonjubeh DixonPublisher:
ISBN:
Category :
Languages : en
Pages : 340
Book Description
A Study of Greenbug Resistance in Sorghum
Author: Joseph Neal LegakoA Study of Greenbug Resistance in a Progeny from "bloomless" Sorghum
Author: Iraj AminiAssessment of Damage by Greenbug (Homoptera:Aphididae) to Mixtures of Resistant and Susceptible Sorghum, Sorghum Bicolor (L.) Moench, Hybrids as Affected by Natural Enemies
Author: Klint Gilbert StewartPublisher:
ISBN:
Category :
Languages : en
Pages : 162
Book Description
Characterization of Schizaphis Graminum (Rondani) (Homoptera: Aphididae) Biotype Evolution Via Virulence and Fitness on Sorghum Bicolor (L.) Moench and Sorghum Halepense (L.) Persoon
Author: Roberto Luis GorenaPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Greenbug is one of two key insect pests of sorghum, and biotype evolution hinders the long-term usefulness of resistant sorghums. The current study sought to identify plant resistance mechanisms, plant damage characteristics, and greenbug fitness in sorghum/greenbug interactions. Choice tests were conducted to elucidate resistance mechanisms displayed by four sorghum genotypes towards several greenbug biotypes and isolates. Results indicated all three resistance modalities (antibiosis, antixenosis, tolerance) were identified in sorghums, with some genotypes displaying two or more modalities towards some biotypes. This suggests some sorghum genotypes do not select for greenbug biotypes, and the sorghum genotypes cultivated may have relatively long-term resistance. Non-choice tests were used to determine plant damage associated with greenbug feeding. Four sorghum genotype, Johnson grass, and five greenbug biotype combinations were used to elucidate plant characteristics associated with visible plant damage. Fluid loss and plant stunting were significantly associated with visible plant damage, and were also observed in some plants not incurring heavy visible damage. Additionally, some biotypes avirulent to cultivated sorghum caused significant damage to Johnson grass. These results suggest visible plant damage, routinely used in damage studies, reflects underlying causes that could lead to poor agronomic performance. Additionally, Johnson grass may harbor greenbug biotypes not commonly found in sorghum fields. Greenbug colony and individual fitness were determined by reproduction rates of five biotypes on four sorghum genotypes and Johnson grass in non-choice tests. Generally, colony and individual fitness estimates were not different within genotype/biotype combinations. Also, biotypes did best on more susceptible and worst on more resistant sorghum genotypes. Colonies and individuals of all biotypes had lowest fitness on Johnson grass. These results suggest virulent biotypes may have a fitness advantage over avirulent ones, at least in the presence of the cultivated host. The results presented herein reflect the diversity of sorghum/greenbug interactions, and underscore the need for further understanding of the nature of greenbug biotypes, and how they interact with cultivated and non-cultivated host plants.
Study of Traits for Drought Resistance in Sorghum Bicolor (L.) Moench
Author: Jorge Manuel Santamaria-FernandezPublisher:
ISBN:
Category : Osmoregulation
Languages : en
Pages : 168
Book Description
Grain Mold Resistance in Sorghum [Sorghum Bicolor (L.) Moench]
![Grain Mold Resistance in Sorghum [Sorghum Bicolor (L.) Moench] PDF](https://books.google.com/books/content/images/frontcover/pr9nNwAACAAJ?fife=w80-h100)
Author: Raul Rodriguez-HerreraPublisher:
ISBN:
Category :
Languages : en
Pages : 310
Book Description