This set of Agriculture Multiple Choice Questions & Answers (MCQs) focuses on “Crop Production – Rice”.
1. Chromosome no (2n) of rice is _______
a) 12
b) 11
c) 24
d) 22
View Answer
Explanation: Rice is a kharif season crop with diploid chromosome no i.e. 2n no of 24. Oryzasativa has 24 species, out of which only two are cultivated (Oryzasativa & Oryzaglaberrima).
2. Which of the following is not a type of rice cultivated in India?
a) Autumn
b) Winter
c) Summer
d) Spring
View Answer
Explanation: There are three types of rice cultivation in India autumn rice, winter rice, summer rice. All three are grown in their respective seasons.
3. The rice grown in pre monsoon season is known as _____________
a) Autumn rice
b) Kharif rice
c) Summer rice
d) Winter rice
View Answer
Explanation: The rice grown in pre moonsoon season is known as autumn rice or Aus rice. ‘Aus’ is derived from a Sanskrit word meaning quick or early. It is harvested in August-September.
4. Aman rice is the other name for ________
a) Kharif rice
b) Boro rice
c) Autumn rice
d) Rainy rice
View Answer
Explanation: Aman rice is another name for Kharif rice also known as winter rice. Aman is derived from Arabic word means safety which indicates stability of crop. Aman rice is harvsted in winter.
5. Summer Rice is also known as ________
a) Boro
b) Khoro
c) Auro
d) Moro
View Answer
Explanation: Boro refers to rice grown in submerged land lower in elevation, grown during January-February to April-May, also called summer as summer crop called boro rice is harvested in summer season.
6. Which of the following is not the property of Oryzasativa Indica variety?
a) Groen in tropical region
b) Awnless or short awn
c) Late in maturity
d) Short stem
View Answer
Explanation: Oryzasativa Indica varierty is grown in India. It consists of long stem rather than short stem. It shows late maturity.
7. Which of the following variety of rice is most responsive to nitrogenous fertilizer?
a) Indica
b) Japonica
c) Javanica
d) Sativaecae
View Answer
Explanation: The variety of Rice which is most responsive to nitrogenous fertilizer is japonica.
8. Which of the followning is not a property of Japonica rice?
a) Temperate and subtropical rice
b) Mainly grown in japan
c) Late maturity
d) Photosynthetically very active
View Answer
Explanation: Japonica variety of rice is an early maturity type rather than late maturity and it shows no lodging, mainly confined to temperate and subtropical regions.
9. Test weight of rice is _____
a) 20g
b) 50g
c) 10g
d) 25g
View Answer
Explanation: Test weight is the weight of 1000 grains. In case of rice test weight is 25 gram.
10. Cardinal temperature for rice is (in degree celcius).
a) 30-32
b) 33-40
c) Upto 50
d) Less than 20
View Answer
Explanation: Cardinal temperature is the temperature range between which the growth and development in plants is maximum. For rice cardinal temperature is 30-32°C.
Sanfoundry Global Education & Learning Series – Agriculture.
To practice all areas of Agriculture, here is complete set of Multiple Choice Questions and Answers.
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