大学MOOC General Horticultural Plant Breeding(Northwest A&F University)1461604172 最新慕课完整章节测试答案
Chapter 3 Germplasm Resources
文章目录
第三单元测试
1、判断题：
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、判断题：
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、判断题：
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、判断题：
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、判断题：
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、判断题：
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、判断题：
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、判断题：
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、判断题：
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、判断题：
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、填空题：
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、填空题：
The work content of horticultural plant germplasm resources includes ( ), sorting, preservation and utilization of germplasm resources.
答案: 【 collection】
13、填空题：
The methods of collecting horticultural plant germplasm resources mainly include ( ), solicitation, exchange and referral.
答案: 【 direct inspection and collection】
14、填空题：
The methods of conserving horticultural plant germplasm resources mainly include ( ), ex situ conservation, ex vivo preservation, etc.
答案: 【 in situ conservation】
15、填空题：
When the germplasm resources of horticultural plants are excellent, they can be used directly as cultivars, ( ), ornamental plants, etc.
答案: 【 grafted rootstock】
16、填空题：
The methods of preservation of horticultural plant germplasm resources mainly include planting preservation, ( ), pollen preservation, vegetative preservation, meristem preservation, etc.
答案: 【 seed preservation】
Chapter 2 Breeding objective and approaches
第二单元测试
1、判断题：
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、判断题：
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、判断题：
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、判断题：
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、判断题：
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、判断题：
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、判断题：
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、判断题：
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、判断题：
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、判断题：
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、判断题：
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、判断题：
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、填空题：
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、填空题：
General breeding goals are also called common goals, including ( ), strong resistance, wide market and convenient management.
答案: 【 high productivity】
15、填空题：
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、填空题：
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、填空题：
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 resistan