1) Rice is the stable food of more than 60% world population and most of the people of S.E. Asia, about 90% of rice grown in the world is produced and consumed in Asia.(Agriculture One Liner)
2) Rice is a crop which is grown in wet tropical climate and also grown in humid regions of subtropics.
3) In India, rice occupies the first position among the cereals in respect of both area and production.
4) Rice contains less protein 6-7 % and contains 2-2.5 % fat which is lost during milling.
5) Hulling percent in rice is 66% or 2/3 of paddy.(Agriculture One Liner)
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6) In general cereal crops required about 400-500 liters of water for the production of one kg of plant dry matter. But rice consumed ten times more water i.e. 5000 liters of water to produced 1 kg rice grain
7) In rice field to prevent denitrification and leaching losses N fertilizer should be incorporated in reduced zone so that the process of nitrification is delayed.
8) Rice field submergence in 5cm deep water during the reproductive and grain formation stages is beneficial.
9) Rice grain relatively rich in lysine which is 4 % of total protein fraction.
10) The main protein in rice is: Oryzenin(Agriculture One Liner)
11) Propanil (Stam F-34) is the most widely used post emergence herbicide in rice.
12) Rice is self pollinated crop, fruit type is caryopsis.
13) The grain or caryopsis is tightly enclosed by the lema and palea called the hull.
14) Rice stem is commonly called the haulm or cu/m.
15) Inflorescence is panicle which is a group of spikelet.(Agriculture One Liner)
16) Rice is semi aquatic plant grown best under submerged condition, under these conditions the atmosphere oxygen is transported by aerenchymatous tissues of leaves.
17) First dwarf variety of rice developed in world is TN-/ in Taiwan in 1964-65.
18) First high yielding dwarf variety developed in world is IR-8, by cross between Dee -Gee -Woo -Gen x Peta. it was the first known variety to be released by International Rice Research Institute in 1966.
19) Literally meaning of Dee-gee-woo-gen is: Brown tipped short legged.
20) In 1964, the introduction of Taichung Native 1 (TN- l) in India signaled a new era in the improvement of rice yield.(Agriculture One Liner)
21) It was followed by the introduction of IR 8 in India from The IRRI, Manila (Philippines) in 1965.
22) First Indian high yielding earliest semi -dwarf variety Jaya released in 1968, evolved by Dr. Shastry, and it’s a cross between TN -I x Type 141. It’s out yielded TN -1 & IR-8 both; hence called ‘Miracle rice in India’.
23) Cuttack (odissa) evolved two varieties:Malinga & Mahsuri
24) Mutant variety of rice: Jagannath and Sattari.
25) Variety suitable for direct seeding: Bala(Agriculture One Liner)
26) BLB (bacterial leaf blight) tolerant: TKM-6
27) Salinity tolerant: IR-8, Lunishree
28) Suitable for waterlogged area: Jalmagna
29) First hybrid of basmati in world: PRH-10.
30) First hybrid of rice in India is: CORH-1 (1994)(Agriculture One Liner)
31) NPK ratio 100:60:60 is generally recommended in rice for high yielding varieties.
32) The water logged puddle soil develops two zones; the upper zone (1 to 10 mm), a thin surface layer which contains oxygen is called “oxidized zone” and immediately below the oxidized layer lies a reduced layer which contains no oxygen is called “reduced zone”.
33) Use of nitrate fertilizer in paddy field should be avoided due to more susceptibility to loss of nitrogen through leaching and denitrification.
34) Hence, the deep placement of the ammoniacal form of nitrogenous fertilizers in the reduced zone has been proved to be efficient method of nitrogen application than other methods.
35) Nitrogen use efficiency in rice: 30-40%. (Agriculture One Liner)
36) It has been estimated that the total nitrogen requirement of rice could be brought down by about 25-30 per cent through biofertilizer (algae).
37) In addition to blue green algae (BGA), the association of the water fern Azolla with the blue green algae Anabaena azollae also helps in biological nitrogen fixation.
38) Zinc deficiency is marked by the appearance of rust. coloured or brownish red coloration on the surface of the outer leaves.
39) First reported by Y.L. Nene in 1966 at Pantnagar, Uttrakhand.
40) Browning of rice: Iron toxicity in rice is known as browning of rice(Agriculture One Liner)
41) Iron toxicity is the major problem to rice production in water logged acid -sulphate soils of ultisols & oxisols soil orders.
42) The beginning of iron toxicity is characterized by the appearance of a purple coloration at the leaf tips and finally has a scorched appearance.
43) Phalguna variety is tolerance to Fe -toxicity.
44) Silicon in rice: Silicon is regarded as essential nutrient in rice production.
45) Silicon deficient plants are soft and droopy. Silicon supply mostly required during the panicle initiation stage because during this stage root activity is relatively reduced and the rate of transpiration is high. (Agriculture One Liner)
46) Sowing time of Aus/autumn rice: April- May
47) Sowing time of Boro rice: November -December
48) Rice inflorescence is known as: Panicle.
49) Rice is a type of plant: Short day plant 1 Cardinal temperature of rice is: 30-32 degree
50) Hulling % of rice is: 65%.(Agriculture One Liner)
51) Fruit of rice is known as: Caryopsis.
52) Widely used nitrogenous fertilizer in rice: Ammonium sulphate
53) Optimum pH of soil required for growing rice is: 4-6 pH.
54) Mat type nursery is related to crop: Paddy.
55) Test weight of basmati rice: 21 g.(Agriculture One Liner)
56) Maximum exporter of rice in world: Thailand.
57) Hybrid rice which is released by private sector: PHB-71.
58) Most critical stage of water for rice: Booting stage.
59) Biofertilizer for rice is: Azolla.
60) Seedling ready for transplanting in Dapog method: 12-14 days.(Agriculture One Liner)
61) Most dominant weed species in rice: Echinochloa spp.
62) White eye of rice due to: Fe deficiency.
63) The gas emits from rice field is: Methane.
64) Akiochi disease in rice due to: H2S toxicity.
65) Highest nitrogen losses in the rice crop by: Denitrification.(Agriculture One Liner)
66) Paira & Utera cropping system is closely related to: Rice
67) Parboiling of rice conserve the vitamin: Vitamin BI2
68) Seed rate in Dapog method for rice: 3-4 kg/m2
69) Area required for seedling preparation in Dapog method: 25-30 m2(Agriculture One Liner)
70) Miracle rice of India is: Jaya
71) Gene responsible for dwarfness in rice: Dee -gee -Woo -Gene
72) Spacing for rice sowing of seedling: – 20 X 10 cm
73) Khaira disease of rice is due to: Zinc deficiency
74) Reclamation disease of cereals due to: Copper deficiency
75) A rice grain is said to be extra long if it is: 7 mm or more
(Agriculture One Liner)
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