Unit 5: Crop Production Package of Practices for Kharif Fibre Crops - Practice Quiz

1 Which species of cotton is believed to have originated in Mexico?

2 Which country is one of the major producers of cotton?

3 The main economic product obtained from cotton is its:

4 Cottonseed is mainly used for obtaining:

5 Which soil is generally considered suitable for cotton cultivation?

6 Cotton requires which type of climate for good growth?

7 Which of the following is a species of cotton?

8 Which cotton species is commonly known as Egyptian cotton?

9 Cotton is generally sown as which type of crop in India?

10 The cotton boll is the fruit that contains:

11 Cotton harvesting is usually carried out when the bolls:

12 Which practice helps control weeds in a cotton field?

13 Which two genera include the main cultivated jute species?

14 Which region is especially important for jute cultivation?

15 Jute is mainly grown for its:

16 Which product is commonly made from jute fibre?

17 Jute grows best under which climatic conditions?

18 Which soil is generally suitable for jute cultivation?

19 Which species is commonly known as white jute?

20 Jute fibre is obtained mainly from the:

21 A breeder wants to combine the adaptation of an indigenous Indian cotton with the high yield potential of American upland cotton. Which pair of species should be considered?

22 Which classification correctly groups the cultivated cotton species according to their broad geographical origin?

23 A farmer plans to grow rainfed cotton on deep, moisture-retentive black soil. Which Indian production zone is most closely associated with these conditions?

24 A cotton-processing enterprise wants to obtain edible oil and protein-rich livestock feed in addition to lint. Which cotton product should it process?

25 A cotton field has vigorous vegetative growth and good boll formation, but continuous rain occurs during boll opening. What is the most likely consequence?

26 Which field is most suitable for cotton when all fields receive adequate fertilizer?

27 A textile mill requires extra-long, fine fibres for producing high-quality yarn. Which cultivated cotton species is the most appropriate source?

28 Cotton is planted at a spacing of cm. Assuming one plant is retained at each hill, what is the approximate plant population per hectare?

29 A cotton crop experiences moisture stress at flowering and boll development. Which management decision is most appropriate when only limited irrigation water is available?

30 A seed-cotton sample weighs 2,500 kg and produces 875 kg of lint after ginning. What is its ginning outturn?

31 A germplasm collection contains Corchorus capsularis and Corchorus olitorius. Which statement best describes their commonly accepted centres of origin?

32 Why is the lower Gangetic alluvial region particularly important for commercial jute cultivation?

33 A fibre-processing company wants to establish a collection centre near India's largest concentration of jute cultivation. Which state is the most suitable choice?

34 A jute grower wants to use both the fibre and the woody material remaining after fibre extraction. Which combination is most appropriate?

35 Which seasonal condition is most favourable for rapid vegetative growth and high biomass production in jute?

36 Two fields are available for jute: Field X has fertile, well-drained new alluvium, while Field Y has coarse infertile sand with poor moisture retention. Why is Field X preferable?

37 A low-lying field is likely to experience temporary water stagnation during the growing season. Which jute species is generally better adapted to this condition?

38 A farmer has a well-drained upland field and wants finer, stronger jute fibre. Which species is generally preferred under these conditions?

39 A dense jute stand is producing thin, weak plants because thinning was delayed. Which explanation best accounts for this result?

40 A jute crop is harvested at about the early flowering stage rather than after full seed maturity. What is the main production advantage of this timing?

41 Which pairing of cultivated cotton species with their generally accepted primary centres of origin is correct?

42 A farmer in a drought-prone rainfed tract requires a cotton type with relatively strong adaptation to moisture stress and tolerance of several sucking pests, even at the cost of lower fibre quality. Which species is most appropriate?

43 A cotton lot produces of seed cotton and has a ginning out-turn of . Ignoring processing losses, what are the expected lint and cottonseed yields?

44 Two cotton regions receive the same seasonal rainfall and heat units. Region X has frequent rain and high humidity during boll opening, while Region Y is dry and sunny during boll opening. What is the most likely result?

45 Which field condition is most suitable for rainfed cotton when all fields receive comparable rainfall?

46 A breeder wants to use a historically important Indian interspecific hybrid combining the yield potential of upland cotton with the fibre quality of Egyptian cotton. Which hybrid and parentage fit this objective?

47 Cotton is planted at with one plant intended per hill. If only of the hills retain a plant after thinning, what is the approximate final population per hectare?

48 A cotton recommendation calls for and per hectare. If all phosphorus is supplied through DAP containing N and , and the remaining N through urea containing N, which combination is closest to the requirement?

49 Only two irrigations are available after crop establishment. Assuming the soil profile is adequate before squaring, which allocation is most likely to protect cotton yield?

50 Three cotton pickings yield , and of seed cotton. The first two have recoverable lint, but rain damage reduces the third to . What is the total marketable lint yield?

51 Which statement correctly distinguishes the generally accepted origins of the two principal cultivated jute species?

52 Why is the lower Gangetic alluvial region particularly favourable for the concentration of jute cultivation and processing?

53 A jute field produces of harvested green plants. If dry fibre recovery is of green weight, what fibre yield should be recorded?

54 A farm has one low-lying field subject to temporary inundation and one well-drained upland loam. Which species allocation best matches their relative adaptation?

55 Which weather sequence is most favourable for high jute biomass followed by efficient fibre extraction?

56 Which variety–species pairing is correct?

57 A jute recommendation requires of pure viable seed. A seed lot has germination and physical purity. What quantity of the commercial seed lot should be sown?

58 A line-sown jute crop is thinned to one plant at . If of these plants survive until harvest, what is the approximate harvest population per hectare?

59 A grower can harvest jute at pre-flowering, approximately flowering, or after advanced pod formation. Which timing normally provides the best compromise between fibre yield and fibre quality?

60 During jute retting, clean water is at a suitable temperature, but bundles float and their upper portions remain exposed. Retting becomes uneven and fibre stripping is difficult. What is the best correction?