What does the term "Cereal Yield" refer to ? 1. The amount of cereal crops produced per unit area of harvested land 2. The total production of cereal crops in a given country Select the correct answer from the codes given below :
- (a)Both 1 and 2
- (b)Neither 1 nor 2
- (c)Only 1
- (d)Only 2
Correct — C, Only statement 1. Yield is a ratio, not a total. The standard international definition, used by the FAO and carried in the World Bank's World Development Indicators as the series 'Cereal yield (kg per hectare)', reads: 'Cereal yield, measured as kilograms per hectare of harvested land, includes wheat, rice, maize, barley, oats, rye, millet, sorghum, buckwheat, and mixed grains.' Every element of statement 1 is in that sentence — an amount of cereal, divided by a unit of harvested land. Statement 2 describes a different variable altogether: total production, or output, which is what a country grows in aggregate and is reported in tonnes, not in tonnes per hectare. The two are linked by a simple identity — production = yield × area harvested — and that identity is exactly why they cannot be the same thing. A country can raise production without raising yield merely by sowing more land, and a country with a small cropped area can have the world's highest yields while producing very little in total. India makes the point domestically: Uttar Pradesh is the largest wheat-producing State by total output because of its sheer cropped area, while Punjab and Haryana return the higher wheat yields per hectare. One further detail worth carrying: the FAO counts only crops harvested for dry grain, excluding cereals cut for hay, green fodder or grazing, and it assigns a harvest to the calendar year in which most of it was gathered.
- (a)Both 1 and 2 — Accepting statement 2 collapses two distinct agricultural statistics into one. Yield is measured in kilograms or tonnes per hectare and describes the productivity of land; total production is measured in tonnes and describes the size of the harvest. Reporting agencies publish them as separate columns precisely because a rise in one does not imply a rise in the other.
- (b)Neither 1 nor 2 — Statement 1 is the textbook definition, reproduced almost word for word in the FAO and World Bank indicator note, so it cannot be rejected. This option is chosen only by a candidate who suspects the phrasing 'per unit area of harvested land' of being a trap; in fact 'harvested land' is the technically precise wording, because area sown and area actually harvested differ when a crop fails.
- (d)Only 2 — This is the exact inversion of the definition — it hands the name 'yield' to total production. It is the most tempting wrong answer because in everyday Indian usage 'a good yield' loosely means 'a big harvest'; in statistics it always means output per hectare. Total cereal production is simply called production or output.
Agricultural performance is reported through three different quantities that beginners routinely merge. Area is the land under a crop, measured in hectares. Production (output) is the total quantity harvested, measured in tonnes. Yield (productivity) is production divided by area, measured in kilograms or tonnes per hectare — it is the intensive measure, and the one that tells you how efficiently land, water, seed and fertiliser are being used. Because production = yield × area, growth in output can come from extending cultivation or from raising yield, and only the second is available to a country like India where cultivable land has stopped expanding.
The question is a pure definition check and needs no data at all, but it rewards a habit of reading units. Anything expressed 'per unit area', 'per hectare' or 'kg/ha' is a yield; anything expressed as a national or State total in tonnes is production. Notice too that the two statements are contradictory as definitions of one term, so the answer had to be 'Only 1' or 'Only 2' — 'Both' was never available. The confusion this item punishes has real exam consequences: India is among the world's largest producers of rice, wheat and total cereals, and candidates slide from that into assuming India is also among the most productive. It is not. Chinese rice and wheat yields per hectare run well above India's, which is why UPSC in 2023 marked as false the statement that average productivity per hectare in Indian agriculture is higher than in China. Learn to say 'largest producer' and 'highest yield' as two separate claims.
- World Bank / FAO indicator definition: 'Cereal yield, measured as kilograms per hectare of harvested land, includes wheat, rice, maize, barley, oats, rye, millet, sorghum, buckwheat, and mixed grains.'
- Production = yield × area harvested. Output can rise from more land or from higher productivity per hectare; yield isolates the second.
- FAO cereal production data cover crops harvested for dry grain only — cereals cut for hay, green fodder or grazing are excluded — and a harvest is credited to the calendar year in which most of it was gathered.
- India ranks among the world's largest producers of rice and wheat by total output, yet its average cereal yields per hectare are lower than China's — the distinction between production and productivity in one sentence.
- Within India, Uttar Pradesh leads in total wheat output because of its large cropped area, while Punjab and Haryana record higher wheat yields per hectare — the same production-versus-yield contrast at State level.
- Reading 'yield' as total harvest. In statistics yield is always output per unit area; the total is called production or output.
- Confusing land productivity (per hectare) with labour productivity (per worker). India's yields and its output per agricultural worker are two separate weaknesses.
- Mixing units — 1 quintal per hectare equals 100 kg per hectare, and Indian sources often quote quintals or tonnes per hectare where international sources quote kilograms per hectare.
- Using area sown instead of area harvested. When a crop fails on part of the sown area, the two diverge and the yield figure changes with the denominator.
UPPSC asks this as a bare definition or as an assertion-reason contrasting a State's large output with its low productivity; UPSC prefers the comparative form — India versus China on arable area, irrigated share and productivity per hectare — where the whole question turns on keeping production and yield apart.
Consider the following statements: 1. India has more arable area than China. 2. The proportion of irrigated area is more in India as compared to China. 3. The average productivity per hectare in Indian agriculture is higher than that in China. How many of the above statements are correct?
- (a) Only one
- (b) Only two
- (c) All three
- (d) None
Answer(a) Only one
The same distinction applied comparatively — India's larger arable area does not make its productivity per hectare higher than China's, which is precisely why yield and total production must be treated as different quantities.
Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R). Assertion (A) : Sugarcane and sugar production in U.P. is more than Maharashtra but productivity is less. Reason (R) : Most of the sugar factories in Maharashtra are in cooperative sector. Codes :
- (a) Both (A) and (R) are true and (R) is the correct explanation of (A)
- (b) Both (A) and (R) are true, but (R) is not the correct explanation of (A)
- (c) (A) is true, but (R) is false
- (d) (A) is false, but (R) is true
Answer(b) Both (A) and (R) are true, but (R) is not the correct explanation of (A)
UPPSC's own earlier use of the production-versus-productivity distinction — Uttar Pradesh out-produces Maharashtra in cane and sugar while yielding less per hectare, the exact gap between statement 2 and statement 1 here.
- practice — not a real PYQ
In a given year a country's total cereal production rises by 5 per cent while the area harvested rises by 10 per cent. What has happened to its cereal yield?
- (a)It has risen by 5 per cent
- (b)It has fallen
- (c)It has remained unchanged
- (d)It cannot be determined from the information given
Answer(b) It has fallen — yield equals production divided by area harvested, so when the denominator grows faster than the numerator the ratio must decline, even though total output has gone up.
- practice — not a real PYQ
In FAO and World Bank datasets, cereal yield is conventionally expressed in which unit?
- (a)Tonnes per year
- (b)Kilograms per hectare of harvested land
- (c)Rupees per quintal
- (d)Kilograms per agricultural worker
Answer(b) Kilograms per hectare of harvested land — the World Development Indicators series 'Cereal yield' is defined in exactly these terms and covers wheat, rice, maize, barley, oats, rye, millet, sorghum, buckwheat and mixed grains.