Pest damage is a significant factor that cuts agricultural production, and cultivation of pest-resistant varieties is the most economic and effective approach of controlling pest damage. Plant pest resistance includes...Pest damage is a significant factor that cuts agricultural production, and cultivation of pest-resistant varieties is the most economic and effective approach of controlling pest damage. Plant pest resistance includes antixenosis, antibiosis, and tolerance. Current popular methods for the genetic improvement of crop pest resistance are traditional breeding method, transgenic breeding, and molecular mark-assisted breeding. This paper introduced major mechanisms and genetic bases of plant pest resistance, ＂and reviewed research progress of domestic and international genetic improvement of plant pest resistance, analyzed the problems and its de- velopment prospects.展开更多
The experimental study of the interaction between Amphidinium carterae Hulburt and Krenia mikim otoi Hansen is carried in ecological conditions..The results showed tha in single culture system,A.carterae and K.mikimot...The experimental study of the interaction between Amphidinium carterae Hulburt and Krenia mikim otoi Hansen is carried in ecological conditions..The results showed tha in single culture system,A.carterae and K.mikimotoi growth curves Karen Logistic growth model,different initial density ratio could have a significant impact on the growth of two microalgae:With the initial density increases,the exponential phase and stationary phase is due to come earlier,and instantaneous population growth rate(r)and environmental carrying capacity(K)decreased.展开更多
基金Sponsored by Special Fund for Modern Agricultural Industry Technology System(CARS-09)Jiangsu Provincial Scientific and Technological Support Program(BE2013305)Program of Nantong Scientific and Technological Bureau(H2012014)
文摘Pest damage is a significant factor that cuts agricultural production, and cultivation of pest-resistant varieties is the most economic and effective approach of controlling pest damage. Plant pest resistance includes antixenosis, antibiosis, and tolerance. Current popular methods for the genetic improvement of crop pest resistance are traditional breeding method, transgenic breeding, and molecular mark-assisted breeding. This paper introduced major mechanisms and genetic bases of plant pest resistance, ＂and reviewed research progress of domestic and international genetic improvement of plant pest resistance, analyzed the problems and its de- velopment prospects.
文摘The experimental study of the interaction between Amphidinium carterae Hulburt and Krenia mikim otoi Hansen is carried in ecological conditions..The results showed tha in single culture system,A.carterae and K.mikimotoi growth curves Karen Logistic growth model,different initial density ratio could have a significant impact on the growth of two microalgae:With the initial density increases,the exponential phase and stationary phase is due to come earlier,and instantaneous population growth rate(r)and environmental carrying capacity(K)decreased.
