GeographyISC Class 12 · Agriculture

Conditions of Growth and Leading States of the Syllabus Crops (ISC Class 12 Geography)

Updated 17 October 2026 · Fact-checked

For each of rice, wheat, jowar, bajra, ragi, pulses, coffee, tea, cotton, sugarcane, jute, groundnut and coconut, ISC expects soil, temperature, rainfall, season, main areas and leading states. For instance rice needs 20-30 deg C and 100-200 cm of rain on clayey alluvium, tea needs 150-300 cm in frost-free slopes with Assam leading, and groundnut is led by Gujarat, not Rajasthan.

Notice that dry-land millets, wheat, pulses, cotton and groundnut sit at low rainfall, while tea, coffee and jute need the heaviest rain.

Illustration drawn for QuestionBuddy.

Understand Conditions of Growth and Leading States of the Thirteen Syllabus Crops

Food grains

Rice (mainly kharif): 20 to 30 deg C (above 25 ideal) with high humidity; 100 to 200 cm of rain or more, irrigation below 100 cm; clayey alluvium that holds water and deltaic soils. Main areas: Ganga and Brahmaputra plains, coastal plains and deltas, irrigated Punjab and Haryana. Leading states include West Bengal, Uttar Pradesh, Telangana and Punjab, with the top place rotating in recent years.
Wheat (rabi): cool growing season, 10 to 15 deg C at sowing and 20 to 25 deg C with sunshine at ripening; frost and hail are harmful; 50 to 75 cm of rain, irrigation essential where less; well-drained loam and clayey loam, also black soil. Main areas: north-west, Ganga plain, Madhya Pradesh plateau. Leading states: Uttar Pradesh, Madhya Pradesh, Punjab, Haryana.
Jowar (sorghum; kharif and rabi): 27 to 32 deg C; 30 to 100 cm, a dry-farming crop; black soil and alluvium, tolerant of poor soils. Leading states: Maharashtra (first), Karnataka.
Bajra (pearl millet; kharif): 25 to 35 deg C; 40 to 50 cm, very drought-resistant; sandy and light soils. Leading states: Rajasthan (first), Uttar Pradesh, Haryana, Gujarat.
Ragi (finger millet; kharif): 20 to 30 deg C; 50 to 100 cm; red, black and sandy loams, grows on hill slopes. Leading state: Karnataka (first), also Tamil Nadu and Uttarakhand.
Pulses (gram and lentils in rabi; tur, moong and urad in kharif): 20 to 27 deg C; 25 to 60 cm; sandy loam and black soil; legumes fix nitrogen and suit rotation. Leading states: Madhya Pradesh (first), Rajasthan, Maharashtra.

Commercial and industrial crops

Coffee (plantation): 15 to 28 deg C, no frost or strong sun (grown under shade trees); 150 to 250 cm, well distributed; well-drained rich loam on hill slopes of 600 to 1,600 m. Leading state: Karnataka (about 70 per cent of output), then Kerala and Tamil Nadu.
Tea (plantation): 20 to 30 deg C, frost-free; 150 to 300 cm, well distributed; deep, well-drained, slightly acidic humus-rich loam on slopes without waterlogging. Leading states: Assam (first), West Bengal (Darjeeling, Dooars), also Tamil Nadu and Kerala.
Cotton (kharif): 20 to 32 deg C with at least 200 frost-free days and bright sunshine at picking; 50 to 100 cm (up to about 150 cm in places), irrigation in dry areas; black (regur) soil of the Deccan, also alluvium in Punjab and Haryana. Leading states: Gujarat, Maharashtra, Telangana.
Sugarcane: 21 to 27 deg C, hot and humid, frost harmful; 75 to 150 cm, irrigation where less; deep rich loamy alluvium and black soil. Leading states: Uttar Pradesh (first), Maharashtra, Karnataka.
Jute: 24 to 35 deg C, humid; 150 to 250 cm with plenty of water for retting; fertile well-drained deltaic alluvium renewed by floods. Leading state: West Bengal (first), then Bihar and Assam.
Groundnut (mainly kharif): 20 to 30 deg C; 50 to 75 cm, frost and waterlogging harmful; light sandy well-drained loam, since pods develop underground. Leading state: Gujarat (first), then Rajasthan, Tamil Nadu and Andhra Pradesh.
Coconut: 25 to 30 deg C with little variation, humid, frost and drought harmful; 100 to 250 cm, well distributed; sandy well-drained coastal soils, laterite and alluvium. Leading states: Kerala, Karnataka and Tamil Nadu, which are close to one another; in recent estimates Karnataka and Tamil Nadu have matched or overtaken Kerala.

Using the data. Leading states shift slightly from year to year; the states above are consistently at or near the top. Examiners warn against omitting temperature and rainfall ranges and against naming the wrong state, for example Rajasthan for groundnut or Andhra Pradesh for bajra.

Conditions of Growth and Leading States of the Thirteen Syllabus Crops: key facts

Rice: 20-30 deg C
100-200 cm
clayey alluvium
kharif
West Bengal, Uttar Pradesh, Telangana, Punjab
Wheat: 10-15 deg C at sowing, 20-25 deg C at ripening
50-75 cm
loam
rabi
Uttar Pradesh, Madhya Pradesh, Punjab, Haryana
Millets and pulses: Jowar Maharashtra
Bajra Rajasthan
Ragi Karnataka
Pulses Madhya Pradesh
Plantation crops: $C o f f ee : 150 - 250 c m, K a r na t ak a ∣ T e a : 150 - 300 c m, A ss am$
Commercial crops: Cotton Gujarat
Sugarcane Uttar Pradesh
Jute West Bengal
Groundnut Gujarat
Coconut Kerala, Karnataka, Tamil Nadu

Jowar	Maharashtra
Bajra	Rajasthan
Ragi	Karnataka
Pulses	Madhya Pradesh

Cotton	Gujarat
Sugarcane	Uttar Pradesh
Jute	West Bengal
Groundnut	Gujarat
Coconut	Kerala, Karnataka, Tamil Nadu

How to answer Conditions of Growth and Leading States of the Thirteen Syllabus Crops questions

For a crop question, answer in five fixed headings.

1Soil: type and drainage.
2Temperature: range in degrees Celsius.
3Rainfall: range in centimetres and distribution.
4Season: kharif, rabi or plantation year.
5Areas and leading states: main regions and the first state, with reasons for the concentration.

Conditions of Growth and Leading States of the Thirteen Syllabus Crops in real life

The idea, met in an everyday situation. Answer the question in your own words, then compare with the model answer. The one-line hook is what to remember.

Which crop for this field?

Suppose a farmer in a hot, semi-arid region has light sandy soil and about 45 cm of rain, and wants a hardy kharif cereal.

Name the crop that fits best and give the leading state.

Try it first, then show the solutionSolution

Light sandy soil, 40-50 cm and 25-35 deg C match bajra.
The leading state of bajra is Rajasthan.

Answer: Bajra; Rajasthan leads.

Memory hook: Bajra thrives where little else does.

Why tea is grown on slopes

Suppose a planter tries to start a tea garden on a flat low field that stays waterlogged after rains.

Say why the plan fails using the conditions of growth.

Try it first, then show the solutionSolution

Tea needs deep, well-drained soil on slopes.
Waterlogging harms tea, so the flat field is unsuitable.

Answer: Tea needs well-drained slopes; a waterlogged flat field harms it.

Memory hook: Tea likes rain but hates wet feet.

Tricks to remember Conditions of Growth and Leading States of the Thirteen Syllabus Crops

Short memory aids. Say each one aloud once, then use it on a question the same day.

Leading state pairs
Jowar-Maharashtra, Bajra-Rajasthan, Ragi-Karnataka, Pulses-Madhya Pradesh, Groundnut-Gujarat, Jute-West Bengal, Sugarcane-Uttar Pradesh, Tea-Assam, Coffee-Karnataka.
Use it when: State recall.
Dry-land crops
Bajra 40-50 cm, pulses 25-60 cm, jowar 30-100 cm, groundnut 50-75 cm: the dry-farming crops.
Use it when: Rainfall ranges.
Wet-land crops
Tea 150-300, jute 150-250, coffee 150-250, rice 100-200, coconut 100-250 cm.
Use it when: High rainfall crops.

Conditions of Growth and Leading States of the Thirteen Syllabus Crops: solved examples

Ordered from board level to HOTS. Try each one before you open the solution.

Example 1: Leading states · 2 marks · Short answerBoard level

Name the leading producing state of (a) tea, (b) jute, (c) groundnut, (d) bajra.

Try it first, then show the solutionSolution

(a) Assam.
(b) West Bengal.
(c) Gujarat.
(d) Rajasthan.

Answer: (a) Assam (b) West Bengal (c) Gujarat (d) Rajasthan.

Example 2: Wheat conditions · 3 marks · Short answerBoard level

State the temperature, rainfall and soil required for wheat, and name its sowing season.

Try it first, then show the solutionSolution

Temperature: 10-15 deg C at sowing and 20-25 deg C with sunshine at ripening; frost and hail are harmful.
Rainfall: 50-75 cm; irrigation where less.
Soil: well-drained loam and clayey loam. Season: rabi.

Answer: 10-15 deg C sowing, 20-25 deg C ripening; 50-75 cm; loam; rabi.

Example 3: Cotton · 4 marks · Long answerHarder board level

Describe the conditions required for cotton and name its three leading states.

Try it first, then show the solutionSolution

Temperature 20-32 deg C with at least 200 frost-free days and bright sunshine at picking.
Rainfall 50-100 cm, with irrigation in dry areas.
Black (regur) soil of the Deccan and alluvium in Punjab and Haryana; kharif crop.
Leading states: Gujarat, Maharashtra and Telangana.

Answer: 20-32 deg C, 200 frost-free days, 50-100 cm, black soil; Gujarat, Maharashtra, Telangana.

Example 4: Identify the plantation crop · 4 marks · Long answerHarder board level

A crop needs 15-28 deg C, 150-250 cm of well-distributed rain, shade trees and hill slopes of 600-1,600 m. (a) Name it. (b) Name the leading state. (c) Give two ways in which its conditions differ from tea.

Try it first, then show the solutionSolution

(a) Coffee.
(b) Karnataka (about 70 per cent of output).
(c) Coffee needs shade and no strong sun and a slightly lower temperature range of 15-28 deg C; tea needs 20-30 deg C, up to 300 cm and acidic humus-rich loam.

Answer: (a) Coffee (b) Karnataka (c) coffee is shade-grown and cooler and needs less rain than tea.

Example 5: Suitability analysis · 5 marks · Long answerHOTS / competency

Case (invented): A region has 45 cm of rain, light sandy soil and 28-35 deg C in summer. (a) Name two suitable crops from the syllabus list. (b) Name a crop that would fail, with the reason. (c) Suggest a crop that could be grown if canals were built, and a state that leads in it.

Try it first, then show the solutionSolution

(a) Bajra (40-50 cm, sandy soil, drought-resistant) and pulses (25-60 cm) are suitable; jowar (30-100 cm) also fits, but groundnut (50-75 cm) is marginal.
(b) Tea or jute would fail because they need 150 cm or more of rain.
(c) With canals, wheat (rabi, 50-75 cm with irrigation) could be grown; leading states include Uttar Pradesh and Punjab.

Answer: (a) Bajra, pulses (b) tea or jute need heavy rain (c) wheat with irrigation; Uttar Pradesh or Punjab lead.

Where students lose marks in Conditions of Growth and Leading States of the Thirteen Syllabus Crops

The slips examiners see most often, and what to write instead.

Mistake: Omitting the temperature or rainfall ranges
Only soil and states are written.
Do this: Use the five headings for each crop.
Usually costs: 1 to 2 marks.
Mistake: Naming Rajasthan for groundnut or Andhra Pradesh for bajra
Wrong leading states.
Wrong working
Groundnut: Rajasthan; Bajra: Andhra Pradesh
Right working
Groundnut: Gujarat; Bajra: Rajasthan
Do this: Learn the state pairs.
Usually costs: 1 mark.
Mistake: Writing a single value instead of a range
Conditions are asked as ranges.
Do this: Write low to high values with units.
Usually costs: 1 mark.
Mistake: Mixing plantation crops
Tea and coffee conditions are swapped.
Do this: Coffee: shade and slopes at 600-1,600 m; tea: acidic humus loam and up to 300 cm.
Usually costs: 1 to 2 marks.

Exam tips

Write each crop in five headings: soil, temperature, rainfall, season, states.
Give units for temperature and rainfall.
Name one reason for each concentration of a crop.
Do not mention crops outside the syllabus list.

Practice questions on Conditions of Growth and Leading States of the Thirteen Syllabus Crops

Write each answer on paper first. Open the hint only if you are stuck, and the answer only when you have finished.

Q1 · 1 mark · MCQBoard level
The leading state for groundnut production is:
(a) Rajasthan
(b) Gujarat
(c) Kerala
(d) Assam
Hint
Not Rajasthan.
Answer
(b) Gujarat.
Q2 · 4 marks · Long answerHarder board level
Give the conditions of growth of rice: temperature, rainfall, soil and main areas.
Hint
Four headings.
Answer
Temperature 20-30 deg C with high humidity; rainfall 100-200 cm or more (irrigation below 100 cm); clayey alluvium and deltaic soils; main areas: Ganga and Brahmaputra plains, coastal plains and deltas, irrigated Punjab and Haryana.
Q3 · 3 marks · Short answerHarder board level
Explain why jute is concentrated in West Bengal.
Hint
Deltaic alluvium, heat, water for retting.
Answer
Jute needs 24-35 deg C, humidity, 150-250 cm of rain and plenty of water for retting, and fertile alluvium renewed by floods. The Ganga delta of West Bengal offers all of these.
Q4 · 3 marks · Short answerHarder board level
Distinguish between jowar and bajra on rainfall, soil and leading state.
Hint
30-100 cm versus 40-50 cm.
Answer
Jowar: 30-100 cm, black soil and alluvium, led by Maharashtra. Bajra: 40-50 cm, sandy and light soils, led by Rajasthan.
Q5 · 4 marks · Long answerHOTS / competency
Case: A report says the leading coconut state is changing. (a) Name the three states usually listed. (b) State the temperature and rainfall for coconut. (c) Explain why coconut is a coastal crop.
Hint
Humid, little variation, sandy soils.
Answer
(a) Kerala, Karnataka and Tamil Nadu. (b) 25-30 deg C and 100-250 cm. (c) It needs humid, equable conditions with little variation in temperature, and sandy, well-drained coastal soils, with frost and drought harmful.

Test your recall

Answer in your head or on paper first, then open the card. Pulling an answer out of memory makes it stick far better than re-reading.

1.Leading state for ragi?Show answer
Karnataka.
2.Rainfall range for tea?Show answer
150-300 cm.
3.Soil of the Deccan cotton area?Show answer
Black (regur) soil.
4.Leading state for sugarcane?Show answer
Uttar Pradesh.
5.Which crop is led by Madhya Pradesh?Show answer
Pulses.

Conditions of Growth and Leading States of the Thirteen Syllabus Crops: frequently asked questions

Why is wheat a rabi crop?

It needs a cool growing season, with frost and hail harmful at the wrong stage.

Why do groundnut pods need light soil?

They develop underground.

Which crops are plantation crops here?

Coffee and tea.

Do leading states change?

Slightly from year to year; the states listed are consistently near the top.