Rice most important Objective Questions 1

Question 1 of 40

1. Question

1 points

Which of the following crop has the highest cultivated area in the world

Rice
Wheat
Barley
Bajra

Question 2 of 40

2. Question

1 points

Rice is originated in

SW Asia
Europe
South America
India & Burma

Question 3 of 40

3. Question

1 points

India has the largest area in rice cultivation in the world, which is about

26 mha
36 mha
45 mha
50 mha

Question 4 of 40

4. Question

1 points

Productivity of rice is highest in

Haryana
Punjab
West Bengal
UP

Question 5 of 40

5. Question

1 points

The genus Oryza includes

14 species
22 species
24 species
30 species

Question 6 of 40

6. Question

1 points

The varieties which belong to species Oryza glaberrima are found are in

Europe
Asia
America
Africa

Question 7 of 40

7. Question

1 points

The rice varieties grown in India belongs to

Indica
Japonica
Javanica
Asiatica

Question 8 of 40

8. Question

1 points

Rice grown in Indonesia belongs to

O. glaberrima
O. sativa indica
O. sativa japonica
O. sativa javanica

Question 9 of 40

9. Question

1 points

Non traditional areas of rice cultivation include

Punjab and Haryana
UP and Bihar
West Bengal and Orissa
Tamil Nadu and Andhra Pradesh

Question 10 of 40

10. Question

1 points

The rice inflorescence is known as

Panicle
Spikelets
Ear
Siliqua

Question 11 of 40

11. Question

1 points

The dehulled rice grain is known as

White rice
Brown rice
Red rice
Grey rice

Question 12 of 40

12. Question

1 points

Rice crop needs

Warm and Humid climate
Hot and Humid climate
Dry and Hot conditions
Cold and dry climate

Question 13 of 40

13. Question

1 points

For ripening of rice, temperature should lie between

21-37 Degree C.
26.5-29.5 Degree C.
20-25 Degree C.
15-20 Degree C.

Question 14 of 40

14. Question

1 points

Photoperiodically, Rice is a type of ……………. Plant

Long day
Short day
Day neutral
Intermediate

Question 15 of 40

15. Question

1 points

The sowing time of Aus rice is

Nov.-Dec.
June-July
May-June
March-April

Question 16 of 40

16. Question

1 points

The sowing time of boro or dalua rice is

Nov.-Dec.
June-July
May-June
March-April

Question 17 of 40

17. Question

1 points

The optimum pH of soil for rice cultivation varies in range

4 - 6
5 - 6.5
6 - 7
7 - 9

Question 18 of 40

18. Question

1 points

IR-8 Variety of rice is introduced in India from

Taiwan
Philippines
Indonesia
USA

Question 19 of 40

19. Question

1 points

Which of the following variety is a dwarf mutant ?

IR-8
Jaya
Pusa-2-21
Jagannath

Question 20 of 40

20. Question

1 points

The seed rate of rice cultivation in broadcasting and drilling method, respectively should be

100, 60 kg/ha
60, 100 kg/ha
45, 100 kg/ha
100, 45 kg/ha

Question 21 of 40

21. Question

1 points

Which of the following is abiotic stress hormone?

Phaseic acid
Abscisic acid
Gibberellic acid
Napthalic acetic acid

Question 22 of 40

22. Question

1 points

Identify the element associated with nitrate reduction.

Zn
K
Mo
Ca

Question 23 of 40

23. Question

1 points

Which of the following in a pentose sugar?

Erythrose phosphate
Fructose phosphate
Xylulose phosphate
Sedoheptulose phosphate

Question 24 of 40

24. Question

1 points

Identify the substrate if the respiratory quotient is 1.

Oleic acid
Casein
Citric acid
Glucose

Question 25 of 40

25. Question

1 points

Who proposed the chemiosmotic theory of ATP synthesis?

Hans Kreb
Mitchell
Calvin
Huber

Question 26 of 40

26. Question

1 points

Which pigment in involved in flowering of plants?

Cytochrome
Plastochrome
Phytochrome
Photochrome

Question 27 of 40

27. Question

1 points

Which cell organelle is not involved in photorespiratory process directly?

Chloroplast
Peroxisome
Mitochondria
Ribosome

Question 28 of 40

28. Question

1 points

The CO2 concentration in the atmosphere presently is around?

0.37%
0.037%
0.0037%
0.00037%

Question 29 of 40

29. Question

1 points

Which of the following is non climacteric fruit?

Banana
Jack fruit
Apple
Grapes

Question 30 of 40

30. Question

1 points

Acid growth theory explains the mechanism of action of :

Auxin
Gibberellin
Cytokinin
Ethylene

Question 31 of 40

31. Question

1 points

Which one is a sedimentary rock?

Sandstone
Basalt
Quartzite
Diorite

Question 32 of 40

32. Question

1 points

Clay mineral illite has CEC (cmol.(p+) kg-1) values ranging between

3-15
20-40
50-80
80-120

Question 33 of 40

33. Question

1 points

Among various classes of salt affected soils, the most permeable one is :

Saline
Saline sodic
Non-saline sodic
Degraded sodic

Question 34 of 40

34. Question

1 points

The chemical formula of the liming compound “dolomite” is

CaCO3
MgCO3
CaMg (CO3)2
CaO

Question 35 of 40

35. Question

1 points

Which nitrifying bacteria oxidizes nitrite (No2-) to nitrate (NO3-) in soils?

Nitrosomonas
Nitrobacter
Nitrospira
Nitroglea

Question 36 of 40

36. Question

1 points

Boron function in plants in

N-fixation
NO3- reduction
Fatty acid synthesis
Sugar translocation

Question 37 of 40

37. Question

1 points

Which phosphate compound is present in single super phosphate

CaHPO4
Ca3(PO4)2
Ca(H2PO4)2
H3PO4

Question 38 of 40

38. Question

1 points

Biuret content in urea is premissible only to an extent of :

1.5%
2.0%
3.0%
4.0%

Question 39 of 40

39. Question

1 points

Potassium is present in crop plants as

Cell wall
Cell sap
Mitochondria
Nucleus

Question 40 of 40

40. Question

1 points

Tensiometers measure soil moisture tension (bar) only upto

1.5
15.0
0.85
0.33

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