Unit 6 - Practice Quiz

1 Which plant bio-regulator is commercially used to induce rooting in hard-to-root cuttings?

2 Which method of irrigation has the highest water use efficiency?

3 The application of fertilizers along with irrigation water is known as:

4 Which plant hormone is primarily responsible for fruit ripening?

5 In the context of fertilizer application, what is 'Top Dressing'?

6 Which of the following is a major disadvantage of sprinkler irrigation?

7 Gibberellic Acid () is extensively used in grape cultivation to:

8 Which irrigation method is most suitable for fruit orchards planted in a square system?

9 Which nutrient is most commonly applied through foliar spray due to its rapid fixation in the soil?

10 Which growth retardant is commonly used in mango to induce flowering and control vegetative growth?

11 Which bio-fertilizer is symbiotic and associates with leguminous crops?

12 What is the primary stress hormone in plants that induces stomatal closure during drought?

13 The 'Ring method' of fertilizer application is specifically recommended for:

14 Which of the following is a drawback of surface irrigation methods like flooding?

15 What is the Nitrogen content in Urea?

16 Which method of fertilizer application involves placing fertilizers in narrow bands beneath and to the side of crop rows?

17 Which synthetic auxin is used as a herbicide at higher concentrations?

18 Which irrigation system mimics natural rainfall?

19 Green manuring involves:

20 Which plant hormone is known as the 'anti-aging' hormone because it delays senescence?

21 Which of the following is a Nitrogen-fixing bacteria found freely in the soil (non-symbiotic)?

22 The main disadvantage of the Drip Irrigation system is:

23 Starter solutions are generally used for:

24 Which form of manure is produced by the activity of earthworms?

25 Which type of irrigation is most suitable for uneven or undulating topography?

26 In horticulture, 'Parthenocarpy' (seedless fruit development) can be induced by:

27 Broadcasting of fertilizer refers to:

28 Which element is considered a primary macronutrient?

29 Which fertilizer application method reduces the fixation of Phosphorus in the soil?

30 A tensiometer is used to measure:

31 Maleic Hydrazide (MH) is generally used in onion and potato to:

32 Which of the following is an example of a concentrated organic manure?

33 Sub-surface irrigation is beneficial because:

34 The 'Check Basin' method of irrigation is most suitable for:

35 Single Super Phosphate (SSP) contains which secondary nutrient in significant quantity?

36 Which plant bio-regulator is used to prevent pre-harvest fruit drop in citrus and apples?

37 Deep placement of fertilizers is essential for which type of fertilizer to prevent volatilization losses?

38 Which irrigation method is best suited for row crops like potato and maize?

39 Biofertilizers mainly supplement nutrients by:

40 For rapid correction of Iron chlorosis in crops, the preferred method is:

41 The ratio of Carbon to Nitrogen (C:N ratio) is a critical factor in:

42 Ethephon is a commercial formulation that releases:

43 Which of the following is a limitation of Green Manuring?

44 Diammonium Phosphate (DAP) contains:

45 Which irrigation method is known as 'Trickle Irrigation'?

46 The localized placement of fertilizer near the seed is generally done to:

47 Which nutrient is essential for cell wall structure and prevents 'Blossom End Rot' in tomatoes?

48 What is the primary merit of using organic manures over chemical fertilizers?

49 Apical dominance (suppression of lateral buds by the terminal bud) is primarily controlled by:

50 Which method involves applying fertilizer in holes made around the plant base?