2021 General Horticultural Plant Breeding(Northwest A&F University) 最新满分章节测试答案

本答案对应课程为:点我自动跳转查看
本课程起止时间为:2021-01-05到2021-03-31
本篇答案更新状态:已完结

Chapter 2 Breeding objective and approaches 第二单元测试

1、 问题:The output per unit area is the product of these structural characteristics of output.
选项：
A:正确
B:错误
答案: 【正确】

2、 问题:Under different natural and production conditions, the group structure and composition factors of various varieties to obtain high yield can be different. 
选项：
A:正确
B:错误
答案: 【正确】

3、 问题:The yield structural traits are mutually restrictive and often have a certain degree of positive correlation.
选项：
A:正确
B:错误
答案: 【错误】

4、 问题:Varieties with high photosynthetic efficiency are mainly shown to have a stronger ability to synthesize sugars and other nutrients, and use them more for the formation of economic output. 
选项：
A:正确
B:错误
答案: 【正确】

5、 问题:A new variety must have resistance to one or more adverse environmental factors, so that it can adapt to a certain cultivation area, so as to achieve disaster resistance and stable production.
选项：
A:正确
B:错误
答案: 【正确】

6、 问题:In recent years, breeders have begun to reduce and even eliminate certain harmful ingredients in fruit and vegetable products, such as oxalic acid and nitrate in cabbage, bitter cucurbitacin in cucumber and melon, and glucosinolates in spinach leaves.
选项：
A:正确
B:错误
答案: 【错误】

7、 问题:With the adjustment of China’s rural industrial structure and the transfer of rural labor force, plant production will inevitably develop towards a higher degree of mechanization, which requires the cultivation of new varieties suitable for mechanized management.
选项：
A:正确
B:错误
答案: 【正确】

8、 问题:Due to the regional limitation of apple production, it is bound to withstand the test of transportation in trade. Therefore, there is an urgent need for new varieties with excellent storage and transportation capacity in the apple trade.
选项：
A:正确
B:错误
答案: 【正确】

9、 问题:Modern rootstock breeding should pay full attention to the absorption characteristics of rootstock root system. 
选项：
A:正确
B:错误
答案: 【正确】

10、 问题:Formulating breeding goals should not only focus on reality and development needs in the near future, but also take into account the needs of long-term development as much as possible. 
选项：
A:正确
B:错误
答案: 【正确】

11、 问题:Different ecological areas and different production periods of the same area will have different requirements for new varieties due to differences and changes in natural and cultivation conditions.
选项：
A:正确
B:错误
答案: 【正确】

12、 问题:Breeding practice has proved that it is very easy to breed a "genius" variety that can fully meet various production needs. 
选项：
A:正确
B:错误
答案: 【错误】

13、 问题:The breeding goal is the requirement for the breed to be bred, which means that under certain ecological and production conditions, it should have a series of (                 ) requirements for the breed to be bred.
答案: 【good traits】

14、 问题:General breeding goals are also called common goals, including (                    ), strong resistance, wide market and convenient management.
答案: 【high productivity】

15、 问题:Special breeding goals refer to the target traits that a specific plant should have to achieve (             ), high quality, and high benefits.
答案: 【high yield】

16、 问题:Facility cultivation generally needs high-temperature, low-temperature, high-humidity, low-light, multi-disease-resistant, and high-quality (                    ) high-yield varieties.
答案: 【early maturity】

17、 问题:An apple variety that resists low temperatures in winter must have: (                        ), late exercise release time is late, and middle and late winter must have strong resistance.
答案: 【low temperature exercise occurs early】

18、 问题:The fundamental way to achieve the diversity of breeding goals is to strengthen research in two areas: resource discovery and evaluation ()
答案: 【breeding technology】

Chapter 3 Germplasm Resources 第三单元测试

1、 问题:A DNA sequence in the apple genome cannot be counted as an apple germplasm resource. 
选项：
A:正确
B:错误
答案: 【错误】

2、 问题:The giant pumpkin produced by space mutagenesis is no longer a pumpkin germplasm resource. 
选项：
A:正确
B:错误
答案: 【错误】

3、 问题: Local pepper varieties are a type of germplasm resources that have not undergone artificial genetic improvement. 
选项：
A:正确
B:错误
答案: 【正确】

4、 问题:The main varieties of peach in a certain area only refer to the excellent varieties of peach bred in the area. 
选项：
A:正确
B:错误
答案: 【错误】

5、 问题:There is no barrier to hybridization between the germplasm resources in the secondary gene pool of chrysanthemum.
选项：
A:正确
B:错误
答案: 【错误】

6、 问题:When collecting a particularly precious grape germplasm resource, you can not phytosanitary. 
选项：
A:正确
B:错误
答案: 【错误】

7、 问题:When arranging the germplasm resources of horticultural plants, it is necessary to merge the same species with different names.
选项：
A:正确
B:错误
答案: 【正确】

8、 问题:The advantage of in situ conservation of horticultural plant germplasm resources is easy management and investigation.
选项：
A:正确
B:错误
答案: 【错误】

9、 问题:For horticultural plant germplasm resources with low cultivation value but ornamental value, it can be directly used as ornamental plants to beautify the environment
选项：
A:正确
B:错误
答案: 【正确】

10、 问题:For wild resources of horticultural plants that have excellent traits such as disease resistance and stress resistance, but cannot be directly used in production, they can be used indirectly through technical means such as cross-breeding.
选项：
A:正确
B:错误
答案: 【正确】

11、 问题:As a horticultural plant germplasm resource for preservation and utilization, it can be not only a horticultural plant group, but also a single plant, a seed, a pollen, a tissue, or even (                                        ).
答案: 【DNA inserted into a cloning vector Fragment】

12、 问题:The work content of horticultural plant germplasm resources includes (                  ), sorting, preservation and utilization of germplasm resources.
答案: 【collection】

13、 问题:The methods of collecting horticultural plant germplasm resources mainly include (                                    ), solicitation, exchange and referral.
答案: 【direct inspection and collection】

14、 问题:The methods of conserving horticultural plant germplasm resources mainly include (                        ), ex situ conservation, ex vivo preservation, etc.
答案: 【in situ conservation】

15、 问题:When the germplasm resources of horticultural plants are excellent, they can be used directly as cultivars, (                  ), ornamental plants, etc.
答案: 【grafted rootstock】

16、 问题:The methods of preservation of horticultural plant germplasm resources mainly include planting preservation, (                ), pollen preservation, vegetative preservation, meristem preservation, etc.
答案: 【seed preservation】

【作业】Chapter 3 Germplasm Resources 第一周作业

1、 问题:What is a variety? What is the role of improved varieties in modern agricultural production?
评分规则: 【 Varieties are created by human cultivation, economic traits and agricultural biological characteristics meet production and consumption requirements. Under certain cultivation conditions, they can be distinguished from other groups according to specificities such as morphology, cytology, and chemistry. Individuals The main traits among them are relatively consistent, and an appropriate propagation method can maintain its important characteristics of a group of cultivated plants that can be used as means of production.The improved varieties have the following operations in agricultural production:1 . Increase output per unit area2 . Improve product quality3 . Improve resistance to diseases and insect pests, reduce pesticide pollution4 . Enhance adaptability and stress resistance, save energy5 . Extend product supply and utilization time6 . Adapt to intensive management and save labor
】

2、 问题:What is the breeding goal? What types are there?
评分规则: 【 The breeding goal is the requirement for the breed to be bred, which means that under certain ecological and production conditions, the breed to be bred should have a series of requirements for excellent traits.Can be divided into general goals and special goals.   The general goal is also called the common goal, including high productivity, strong resistance, broad market and convenient management. The special goal refers to the target traits for a specific plant to achieve high yield, high quality and high benefit.
】

3、 问题:What are the principles for formulating breeding goals?
评分规则: 【 The principles for breeding goals are:1. To meet the needs of current production and future development2. Formulate breeding goals according to local natural conditions and cultivation conditions3. Highlight the main contradictions4. Implemented to specific traits5. Consider reasonable varieties6. Consider the possibility of breeding goals