Most Important Questions For IRMA,NABARD, AFO, PHD : agri learner

1. What is the reason for the marginal leaf drying in rice?
Agrilearner
Due to the deficiency of potassium nutrient, the entire leaf margin is drying

2. Why the rice leaf color turns to yellowing?

If yellowing is occurring in old leaves, it is due to nitrogen deficiency. If it is young leaves, that may be due to iron deficiency

3. Give the symptoms of nitrogen deficiency in crops?

Chlorosis (yellowing of leaves)Stunted growth/ poor plant growthPoor tillering / branching

4. How to identify phosphorus deficiency?

Poor root growthPinkish pigmentation occurs on old leaves as well as the base of the shootStunted growth

5. What is mean by ‘Tea Yellowing’?

Yellowing of leaves in Tea is due to sulfur deficiency.

6. Give the typical examples of iron Chlorosis present in plants

sugarcane,sorghum

7. What is mean by ‘khaira’?

It is the deficiency symptoms of zinc which occurs in rice plant.

8. Which nutrient deficiency causes cooking of leaves?

Calcium

9. Fruit cracking appears due to what nutrient deficiency?

Boron

10. “Phagala Blight of sugarcane” caused by which Nutrient?

Manganese deficiency
Agrilearner
11. How to control iron chlorosis in crops?

Foliar spraying of 250-500g of ferrous sulphate dissolved in 100 lit of water.

12. Give the common symptoms of boron deficiency in crops

dearth of apical meristem followed b sprouting of lateral budsLeaves / petioles/stems may be thickened, wrinkled, curled and chlorotic.The fleshy pent may show brown flecks, necrosis, cracks or dry notReduced flower and fruit set

13. Which nutrient is essential for translocation sugar in plant system?

Boron

14. Rough skin of guava and citrus is caused by which nutrient?

Boron deficiency

15. Name the deficiency symptoms of boron in grapes?

‘Hen and chicken’ berries

16. How to control the boron deficiencies in citrus, guava and grapes?

Citrus: Foliar spray of 0.3% Boric acid (3g in 1 lit),

Guava: Foliar spray of 1% Borax (10 g in 1 lit),

Grapes: Foliar spray of 1% Borax (10 g in 1 lit)

17. How to control zinc deficiency in banana and mango?

Banana : Foliar spraying of 0.5% zinc sulphate (5g in 1 lit) or apply 30 g zinc sulphate per plant

18. Which nutrient causes button shedding in coconut?

Boron

19. ‘Whip tail’ in cauliflower is occurring by which nutrient?
agrilearner
Molybdenum deficiency

20. How to control ‘rosette’ appearance in citrus?

Foliar application of copper sulphate @ 5-10 g in 10 lit of water

21. How to correct the zinc deficiency in onion?
Agrilearner
Seed treatment with 0.01% zinc sulphate (1g zinc sulphate dissolved in 10 lit of water) or Foliar application of 0.1% zinc sulphate (1g zinc sulphate in 1 lit of water)

22. Give the remedial measures of boron deficiency in cabbage, cauliflower, tomato and chilies.

Nursery area: 40 g Borax per cent
Main field: Borax @ 0.6 kg to 1.2 kg per ha

23. Which nutrient deficiency produces “little leaf” in plant species?

Zinc deficiency

24. What are the physiological disorders occur in Mango?

Spongy tissue

Mango malformation

Biennial bearing

Fruit crop

25. Why spongy tissues occur in Mango?
Agrilearner
The activity of ripening enzymes due to high temperature and post harvest exposure to sunlight
agrilearner
26. What are the symptoms of Mango malformation?
Agrilearner
Compact mass of male flowers, greenish in color and stunted growthThickening and shortening of main and secondary rachisRelatively longer bracts, sepals and petals as compound to normal flowers

27. What are all the factors which cause mango fruit drop?

Embryo abortion,Climatic factors,Disturbed water relation,Lack of “nutrition’pest and disease attack
Agrilearner
28. Name the serious physiological disorder in mango?

Black tip in a serious disorder, particularly in the cultivar Dahemi.

29. Mention the symptoms of mango black tip?

The damage to the fruits gets initiated right at marble stage and finally black. At this stage/ further growth and development of the fruit is retarded and black ring at the tip extends towards the upper https://ativanshop.com part of the fruit.
agrilearner
30. How to control the mango physiological disorders?
Agrilearner
Spongy tissue
Mulching
Post harvest exposure to low temperature b/w 10-15c for 10-18 hrs.agrilearner

Malformation
Spraying of Plano fix (200mglit ppm) during first week of October followed by deblossming at bud burst stage.

Biennial bearing
Deblossoming during ‘On’ year
Soil application of paclobutrazol @ 4g/tree in the month of September

Fruit crops
Foliar application of alar 2 100 ppm (100 mg /lit) or NAA 200 ppm (planofix 200mg /lit) at pea stage of fruit.

Black tip

Spraying of Borax @ 1% (10g ;ot) at or pea stage followed by two more sprang at 15 days intervalcaustic soda@ 0.8% (8g/lit) or washing soda @ 0.5% (5g/lit)Planting of mango on Chan in North-south direction and 5-6 km away from the brick kiln

31. What is mean by blossom end rot?
It is the physiological orders which occurs in tomato due to calcium deficiency

Remedies

Maintain uniform soil moisture during dry weather through mulchingAvoid over fertilizing with nitrogenFoliar application of calcium sulphate @ 1% (10 g/lit) Agrilearner

32. List out the physiological disorders present in grapes and give the connection measures.

Berry shrivel,Shattering,Water berry

Berry shrivel

after inspiring begins, berries become flaccid and suckerCause in unknown. But application of gibberellin’s @ 16g/acre will reduce shrivel by 50 to 70% compare to the untreated.
agrilearne

Shattering

shatter refers to loose berries Grinding at grunt set to increase berries weight and incurrence the strength of being attachment to the capstem and may reduces the shatter potential Basing the clusters reduces the shatter during packing

Water berry

There is no known control. However, it is recommended to avoid over fertilization with nitrogen’Foliar nutrient spray of nitrogen should be avoided in water berry-pore vineyard.Ammonium (or) Urea fertilizers should not be applied via drip irrigation near the beginning (or) during fruit ripening33. Give the symptoms about bitter bit of apple. Agrilearner

Small brown lessons develop in the flesh of the fruit
Tissue below the skin becomes dark
Water soaked spots on the skin rear the calyx. These spots turn darker and become more sunken than the surrounding skin and are filling developed after one to two month in storage.

Correction measure

Calcium chloride and calcium nitrate spray during summer
Post harvest dipping
Drenching with calcium chloride (2-3%)

34. How to control internal browning (or) brown heart in apple?

Avoid harvesting of ova nature fruit
agrilearner
Maintain Co2 concentration below 1% in controlled atmosphere storage and win storey. Agrilearner

Proper temperature management and good ventilation

Avoid heavy wax coating and thoroughly and rapidly cool fruit after waxing and packaging. Agrilearner

35. Mention the physiological disorders occur in pears?

Core breakdown,Watery Breakdown, Flesh spot Decay, Internal browsing, Senescent scald agrilearner
agrilearnerapp
36. List out the physiological disorders found in tomatoes
Agrilearner
Blossom drop fruit cracks Blossom end rot Cat facing Sunscald Puffiness

37. Give the symptom of blossom end not

brown (or) black spot develops on the blossom end of the fruit Secondary organisms invade the affected tissue and cause the fruit to rot. AGRILEARNER

38. What is the reason for fruit cracking in tomato?
AGRILEARNER

Heavy rain fall (or) irrigation followed by long dry periodFruit exposed to direct sun lightAlso due to boron deficiency
AGRILEARNER
Control measures:

Mulching during dry weather to maintain uniform soil moisture Growing resistant Varieties.