《作物育种学总论》习题（Exercises in general introduction of crop breeding）.docVIP

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《作物育种学总论》习题（Exercises in general introduction of crop breeding）.doc

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《作物育种学总论》习题（Exercises in general introduction of crop breeding）

《作物育种学总论》习题（Exercises in general introduction of crop breeding） Exercises in general introduction of crop breeding Chapter 1 breeding objectives 1. terms: breeding objectives, biological yield, economic yield, harvest index, plant breeding, breeding for high photosynthetic efficiency 2. what are the basic requirements of modern agriculture for crop varieties? 3. what are the principles for formulating breeding objectives? 4. what are the main objectives of crop breeding? 5., how can we correctly formulate a practical breeding target? 6., why can crop yield increase through dwarf breeding? 7., formulate a breeding target for a particular crop for a region you are familiar with and explain why. The second chapter is the breeding mode and varieties of crops Floral structure and flowering habits of the wheat, corn, cotton, soybeans and other crops. What are the floral structure and flowering habits conducive to cross pollination? What are the floral structure and flowering habits conducive to self pollination? Combining the specific crops, the genetic effects of selfing and outcrossing were briefly described. What are the types of crops and what are the basic characteristics of them? What are the breeding characteristics of different types of populations? The third chapter, Germplasm Resources 1. concepts: germplasm resources, origin centers, primary centers, secondary centers, native crops, secondary crops, genetic diversity centers, gene banks, primary gene pools, secondary gene pools, and three gene pools 2. briefly describe the role of germplasm in crop breeding. 3. briefly describe the characteristics and utilization value of local germplasm resources. 4. briefly describe the characteristics and utilization value of foreign germplasm resources. What is the role of the theory of 5.Vavilov origin center in crop breeding? 6. how to differentiate between primary and secondary centers? 7. the main contents and identification methods of crop germplasm resources are discu