Description : Optimum temperature for potato tuber formation is a. 20-22°C b. 25-30°C c. 22-25°C d. All of these
Last Answer : 20-22°C
Description : The optimum cardinal temparature point for germination of rice seeds is– 1) 20°C – 25°C 2) 18°C – 22°C 3) 30°C – 32°C 4) 37°C – 39°C
Last Answer : 1) 20°C – 25°C
Description : Optimum temperature for cool season vegetables is: a. 25-30°C b. 25-27°C c. 18-24°C d. 15-20°C
Last Answer : 18-24°C
Description : Optimum temperature for maximum crop development in wheat is (a) 10-15°C(b) 20-25°C (c) 25-30°C (d) 30-35°C
Last Answer : (b) 20-25°C
Description : The wet and 'dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be __________ °C. (A) 25 (B) > 25 (C) < 25 (D) - 25
Last Answer : (B) > 25
Description : Exposure of seed to low temperature before germination is termed as : a. Scarification b. Stratification c. Vernalization d. All of above
Last Answer : Stratification
Description : Dormancy of seed is a biological mechanisms that provides protection against ______: a. Seed spoilage b. Embryo abortion c. Pre mature germination d. Dehydration
Last Answer : Pre mature germination
Description : Guava seed before germination requires: a. Fungicide treatment b. Chemical treatment c. Commercial grade H2SO4 treatment d. All of above
Last Answer : Commercial grade H2SO4 treatment
Description : Seed germination percentage of rough lemon is: a. 50-60% b. 60-70% c. 70-80% d. 80-90%
Last Answer : 60-70%
Description : The germination of seed in which cotyledons come above ground is a. Epigeal b. Hypogeal c. Epigynous d. Epipetalous
Last Answer : Epigeal
Description : Tetrazolium test to check seed viability is a. Chemical test b. Enzyme test c. Germination test d. a & c
Last Answer : a & c
Description : Stage at which seed achieves it maximum dry weight and has maximum germination potential and vigor is: a. Physiological maturity b. Edible maturity c. Harvest maturity d. None of above
Last Answer : Physiological maturity
Description : A mixture of 10% C6H6 vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C. (A) 21.7 (B) 20 (C) 27.3 (D) 18.7
Last Answer : (D) 18.7
Description : In Pakistan, yield of potato range between : a. 10-15 ton b. 15-20 ton c. 20-25 ton d. 25-30 ton
Last Answer : 20-25 ton
Description : The heat flux (from outside to inside) across an insulating wall with thermal conductivity, K = 0.04 W/m.°K and thickness 0.16m is 10 W/m2 . The temperature of the inside wall is - 5°C. The outside wall temperature is (A) 25°C (B) 30°C (C) 35°C (D) 40°C
Last Answer : (C) 35°C
Description : Which of the following are optimum temperature conditions for making benzenediazonium chloride from aniline? (a) 0°C to 10°C (b) 20°C to 25°C (c) 30°C to 40°C (d) 45°C to 50°C
Last Answer : 0°C to 10°C
Description : A thin, flat & square plate measuring 2 m 2 m is freely hanging in ambient air at 25°C. It is exposed to the solar radiation falling on one side of the plate at the rate of 500 W/m2. The plate temperature will ... heat transfer co-efficient is __________ W/m2 °C. (A) 50 (B) 100 (C) 150 (D) 200
Last Answer : (B) 100
Description : Volatile oil are those oil which can evaporate at : a. 25°C b. 40°C c. 50°C d. 65°C
Last Answer : 25°C
Description : Germination of undeveloped seeds is favored by: a. Warm temperature (>20°C) b. Gibberallic acid c. Low temperature (
Last Answer : a & b
Description : Process conditions in fermentator used for production of penicillin is (A) 25°C, 2 atm (B) 50°C, l0 atm (C) 30°C, 200 mm Hg (absolute) (D) 90°C, 45 atm
Last Answer : (A) 25°C, 2 atm
Description : Lemons are usually degreened at: a. 6°C b. 16°C c. 26°C d. 30°C
Last Answer : 16°C
Description : Causes of misshapen and angularity in cucumber fruit under tunnel is due to a. Poor pollination b. Poor fertilization c. Proper pollination d. None
Last Answer : Poor pollination
Description : Recommended cucumber cultivars under tunnel production technology are: a. Monoecious b. Gynoecious c. Andromonoecious d. Gynomonoecious
Last Answer : Gynoecious
Description : What is the optimum temperature requirement for Germination in rice? a. 25-30 o C b. 30-35 o C c. 20-35 o C d. 15-20 o C
Last Answer : c. 20-35 o C
Description : To preserve the germination ability of most seeds, store them in a: a. Warm, dry environment b. Cool, dry environment c. Cool environment after scarification d. Warm, moist environment after stratificatio
Last Answer : Cool, dry environment
Description : Germination percentage in sour orange rootstock is: a. 50-60% b. 61-70% c. 71-80% d. 81-90%
Last Answer : 50-60%
Description : The temperature at which highest percentage of seed germination occurs in short period of time
Last Answer : Ans. Optimum temperature
Description : Which vegetable is self pollinated a. Peas b. Cucumber c. Watermelon d. Sponge gourd
Last Answer : Peas
Description : Which vegetables is transplanted without earthen ball a. Cucumber, b. Watermelon c. Cauliflower d. None of above
Last Answer : Cauliflower
Description : These vegetables are mainly raised through nursery : a. Tomato, Chillies b. Cucumber, watermelon c. Radish, turnip d. None of above
Last Answer : Tomato, Chillies
Description : Vegetables which grow during summer a. Turnip, Raddish b. Cucumber, watermelon c. Cauliflower, Cabbage d. None of abov
Last Answer : Cucumber, watermelon
Description : Family solanaceae consist of these crops. a. Potato, Tomato, eggplant etc. b. Water melon, muskmelon, cucumber c. Turnip, Raddish, Carrot etc. d. None of above
Last Answer : Potato, Tomato, eggplant etc
Description : Parthenocarpic cucumber develops due to: a. After pollination b. Without pollination c. None of above d. a & b
Last Answer : Without pollination
Description : Maleness in cucumber is induced by : a. GA b. ABA c. IBA d. None of above
Last Answer : GA
Description : Femaleness in cucumber is induced by : a. GA b. ABA c. IBA d. None of above
Last Answer : None of above
Description : Hybrid varieties of cucumber grown in tunnels are: a. Parthenocarpic b. Zygotic c. Both types d. None of these
Last Answer : Parthenocarpic
Description : Which of the following crop has lowest water contents: b. Cucumber c. Watermelon d. Bottle gourd e. Cauliflower
Description : Which vegetable cannot be grown as an off season vegetable: a. Tomato b. Potato c. Chillies d. Cucumber
Last Answer : Potato
Description : Most of the hybrid watermelon and cucumber are: a. Triproid b. Diploids c. Aneuploids d. Colchiploids
Last Answer : Colchiploids
Description : In Joule's experiment, an insulated container contains 20 kg of waterinitially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated ... temperature of water (in °C) is (A) 40.5 (B) 34.4 (C) 26.8 (D) 25
Last Answer : (B) 34.4
Description : Shrubs fall in the category of a. 7-15 feet high b. 25 feet high c. More than 25 feet d. None of these
Last Answer : 7-15 feet high
Description : Tip burn of lettuce occurs at high air temperature when the soil is _______: a. Cool b. Dry c. Hot d. Wet
Last Answer : Cool
Description : The most important seed component affecting seed /viability during storage is: a. Temperature b. Humidity c. Moisture d. Food reserves
Last Answer : Temperature
Description : The temperature condition for storage of drug products under cold temperature is given as : (A) temperature between 8°C and 25°C (B) temperature below 20 C (C) temperature at 0°C (D) temperature between 2c C and S: C
Last Answer : (D) temperature between 2c C and S: C
Description : Chilling injury in plants occurs at a temperature: a.
Last Answer :
Description : The optimum temperature for the germination of soybean is: (a) 11 OC (b) 20 OC(c) 15 OC (d) 22 OC
Last Answer : (d) 22 OC
Description : Walls of a cubical oven are of thickness l, and they are made of material of thermal conductivity k. The temperature inside the oven is 100°C and the inside heat transfer co-efficient is 3k/l'. If the wall temperature ... wall temperature in degree centigrade? (A) 35.5 (B) 43.75 (C) 81.25 (D) 48.25
Last Answer : (C) 81.25
Description : A standard steel tape of length 30 m and cross-section 15 1.0 mm was standardised at 25°C and at 30 kg pull. While measuring a base line at the same temperature, the pull applied was 40 kg. If the modulus of elasticity of ... (A) - 0.000909 m (B) + 0.0909 m (C) 0.000909 m (D) None of these
Last Answer : (A) - 0.000909 m
Description : Onion seeds can germinate at a temperature of : a. 0-1°C b. 1-5°C c. 5-11°C d. 15-20°C
Last Answer : 1-5°C