英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:



安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Plant breeding - Wikipedia
    Plant breeding can be performed using many different techniques, ranging from the selection of the most desirable plants for propagation, to methods that make use of knowledge of genetics and chromosomes, to more complex molecular techniques
  • Plant breeding | History, Applications, Methods | Britannica
    Plant breeding, application of genetic principles to produce plants that are more useful to humans Plant breeding dates to the very beginnings of agriculture, though scientific plant breeding began only in the early 20th century Learn more about the uses and methods of plant breeding
  • Plant Breeding | Home - USDA
    Plant breeding is human-aided development of new plant materials with needed characteristics Plant breeding plays a key role in addressing long-term climate-change mitigation and resilience, and in nutrition security
  • What is Plant Breeding? | National Association of Plant Breeders (NAPB)
    Plant breeding is the science driven creative process of developing new plant varieties that goes by various names including cultivar development, crop improvement, and seed improvement
  • 14. 4 Plant Breeding – The Science of Plants - Open Textbook Library
    Understand how to get started breeding two common ornamental and food species Know the purpose of emasculation when making hybridizations (crosses) between parents Recognize the difference that propagation method makes in a plant breeding program This lesson presents examples of plant breeding of two common garden plants, rose and tomato
  • plantbreeding - What Is Plant Breeding? - UC Davis
    What is Plant Breeding? Plant breeders develop new varieties that are productive, nutritious, and adapted to a changing climate By combining field-based evaluation and selection with the latest genomics technologies, plant breeders provide the world with better food, feed, fiber, and renewable fuel, and contribute to sustainable landscapes
  • 1. 1: Basic Principles of Plant Breeding - Biology LibreTexts
    Plant breeding objectives will depend on geographical adaptation, prevalent biotic and abiotic factors that influence production, uses of a cultivar, crop reproductive system (for example, pureline or hybrid), and factors that are important to farmers, and end-users
  • Plant Breeding - National Institute of Food and Agriculture
    Plant breeding — the science of maximizing plants’ positive genetic traits to produce desirable effects — continues to open new frontiers in agricultural production Advancements in plant genetics and genomics, when used in breeding, help support higher production and cultivation of crops resistant to pests, pathogens, and drought
  • Plant Breeding – Introduction, History, Objective, Methods
    Plant breeding is the science and practice of altering the genetic composition of plants to improve their characteristics for human use It is fundamentally a genetic endeavor aimed at developing new plant varieties that exhibit desirable traits, such as higher yields, disease resistance, or improved nutritional content
  • Plant Breeding Methods – How to Cross Two Plants - Pepper Geek
    Plant breeding methods There are several methods of plant breeding, each with different potential outcomes and difficulty Mass selection Mass selection, or selective breeding, is a basic form of plant breeding It involves visual selection of individual crops or fruits that appear to be superior





中文字典-英文字典  2005-2009