敖祁普熟漏惮隙垒龄广开朵呛
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起止时间:2021-04-13到2021-06-27
更新状态:每5天更新一次
Chapter 1 General introduction Chapter 1 Week 1 Unit test
1、 The objective of crop cultivation are
A:A. The relationship between crops and the environment
B:B. The relationship between crops and management
C:C. The relationship between crops, environment and management
D:D. The relationship between environment and management
答案: C. The relationship between crops, environment and management
2、 The diversity of plants combined with environmental and socio-economic conditions constitute the characteristics of crop cultivation.
A:A. Seasonal
B:B. Regional
C:C. Complexity
D:D. Volatility
答案: C. Complexity
3、 The general process of crop growth, follow a
A:A, S-shaped curve
B:B, bell-shaped curve
C:C, parabola
D:D, dumbbell-shaped curve
答案: A, S-shaped curve
4、 The leaf area index can be defined as the
A:A, green leaf area/yellow leaf area
B:B, land area/leaf area
C:C. Total green leaf area/land area
D:D, yellow leaf area/green leaf area
答案: C. Total green leaf area/land area
5、 The following are long-day crops
A:A, soybean
B:B, late rice
C:C, tobacco
D:D, rapeseed
答案: D, rapeseed
6、 The spring wheat varieties are supposed to introduced from southern of China to northern China, and which phenomenon will often occurs.
A: A. Early heading or freezing damage
B:B. Early heading or no heading
C:C. Late heading or freezing damage
D:D. Late heading or no heading
答案: A. Early heading or freezing damage
7、 Wheat grains are called caryopsis in botany, and they are composed of embryo, and endosperm.
A:A seed coat
B:B cortex
C:C fruit skin
D:D aleurone layer
答案: B cortex
8、 The three base points of temperature refer to
A:A, the lowest, optimal and the ceiling temperatures
B:B, the lowest, the second lowest and the ceiling temperatures
C:C, the lowest sub-high and t the ceiling temperatures
D:D, the lowest, the ceiling, and the average temperatures
答案: A, the lowest, optimal and the ceiling temperatures
9、 The adaptation temperature range of crops usually showing that
A:A. Maintain life＞growth＞development
B:B. Maintain life＞development＞growth
C:C. Growth＞Development＞Maintain life
D:D.Maintain life＞Growth=development
答案: A. Maintain life＞growth＞development
10、 Which of the following soil structures is most conducive to crop growth?
A:A. Microaggregate structure
B:B. Agglomerate structure
C:C. Block structure
D:D. Sheet structure
答案: B. Agglomerate structure
11、 Among the following crops, which one is the short-day crop
A:A. Rape
B:B. Rice
C:C. Sugarcane
D:D. Buckwheat
答案: B. Rice
12、 Which crops belongs to monocots plants.
A:A. Wheat, rice, corn, barley
B:B. Cotton, rice, wheat, rape
C:C. Tobacco, ramie, rape, cotton
D:D. Sugar cane, oats, soybeans, peanuts
答案: A. Wheat, rice, corn, barley
13、 The crop growth analysis is a method according to the law of .
A:A. Spike differentiation and flower bud differentiation
B:B. Dry matter accumulation and leaf area formation
C:C. Quality formation
D:D. Yield formation
答案: B. Dry matter accumulation and leaf area formation
14、 Late-maturing varieties have fewer leaves than early-maturing varieties.
A:正确
B:错误
答案: 错误
15、 The minimum temperature for seed germination for both wheat and rice have the same requirements.
A:正确
B:错误
答案: 错误
16、 The influence of crops on the soil is dual, that is, it consumes soil nutrients on the one hand and destroys the soil structure on the other.
A:正确
B:错误
答案: 错误
17、 Dormancy is an adaptation of crops to a stress environment.
A:正确
B:错误
答案: 正确
18、 The assimilation transportation capacity of C4 crop is higher than that of C3 crop.
A:正确
B:错误
答案: 正确
19、 Leaves are the only organ for photosynthesis.
A:正确
B:错误
答案: 错误
20、 Cereal crops generally have tillering characteristics.
A:正确
B:错误
答案: 错误
21、 Maintaining a high root-shoot ratio throughout the life history of crops is the basis for high yield and quality.
A:正确
B:错误
答案: 正确
22、 The high-yielding crop population structure requires the larger storage capacity.
A:正确
B:错误
答案: 错误
Chapter 2 Plant growth development and regulations Chapter 2 Week 2 Unit test
1、 Which process belongs to the development of crops
A:A. Root growth
B:B. Stem growth
C:C. Leaf growth
D:D.Young spike differentiation
答案: D.Young spike differentiation
2、 The following is not a necessary condition for seed germination is
A:A, light
B:B, temperature
C:C, moisture
D:D, oxygen
答案: A, light
3、 The general process of crop growth, follow a
A:A, S-shaped curve
B:B, bell-shaped curve
C:C, parabola
D:D, dumbbell-shaped curve
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