Chilling injury in plants occurs at a temperature:
a. <4°C
b. <5°C
c. <8°C
d. <9°C

1 Answer

Answer :

<5°C

Related questions

Description : Normally the guaranteed best approach a cooling tower can achieve is _____. • 5°C • 12°C • 8°C • 2.8°C

Last Answer : 2.8°C

Description : The temperature of the top of a frozen lake is – 15°C. What is the temperature of the water in the lake in contact with the ice layer? (a) 0°C (b) 4°C (c) –15°C (d) –7.5°C

Last Answer : Ans:(a)

Description : Water has maximum density at _____? A. 0°C B. 4°c C. 40K D. 4.8°C

Last Answer : ANSWER: B

Description : What happens when water is cooled from 8°C to 0°C? 1. Its volume decreases uniformly, becoming minimum at 0°C. 2. Its density increases uniformly, attaining maximum value at 0°C. 3. Its volume decreases up to 4°C and then increases ... is/are correct? (a) Only 1 (b) Only 2 (c) 3 and 4 (d) 1 and 2

Last Answer : Ans:(c)

Description : Water has maximum density at------? A. 0°C B. 4°C (Answer) C. 4° K D. 4.8°C

Last Answer : B. 4°C (Answer)

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

Description : The freezing point of fresh water is - (1) 4°C (2) 3°C (3) 5°C (4) 0°C

Last Answer : (4) 0°C Explanation: The freezing point of water is the temperature at which water changes phase from a liquid to a solid. Under normal conditions, ordinary water freezes at 0°C, or 32°F. ... or if there are impurities present in the water which could cause freezing point depression to occur.

Description : The freezing point of fresh water is _______. (1) 4°C (2) 3°C (3) 5°C (4) 0°C

Last Answer : 0°C

Description : Low chilling verities of apple a. Tropical Beauty b. Enna c. Non of these d. All of these

Last Answer : All of these

Description : Controlled inhibition of seed is termed as: a. Priming b. Soaking c. Chilling d. None of above

Last Answer : None of above

Description : The purpose of staking is to a. Protect the trunk b. Prevent root damage due to wind action c. Prevent wind injury to branches d. Prevent damage due to fros

Last Answer : Prevent wind injury to branches

Description : First and the heaviest flower drop in fruit plants occurs due to : a. Structural defects in the flowers b. Lack of pollination c. Non fertilization d. All of the abov

Last Answer : All of the abov

Description : The average annual temperature of a meteorological station is 26°C, its average annual rainfall is 63 cm and the annual range of temperature is 9°C. The station in question is : [IAS 2002] (a) Allahabad (b) Chennai (c) Cherapunji (d) Kolkata

Last Answer : Ans: (b)

Description : Utilizing the answer to the previous problem, estimate the overall or average increase in temperature ( ΔT) of the concrete roof from the energy absorbed from the sun during a12hour day. Assume that all of the radiation absorbed goes into ... °C  b. 8.9°C  c. 9.9°C  d. 10.9°C formula: ΔQ = m c ΔT

Last Answer : 7.9 °C

Description : High seed germination in cucumber occurs under temperature range of: a. 20-25°C b. 25-30°C c. 15-25°C d. None of above

Last Answer : 20-25°C

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 normal temperature of the human body is – (1) 37°C (2) 37°F (3) 104°F (4) 36.8°C

Last Answer : (1) 37°C Explanation: The normal human body temperature is often stated as 36.5–37.5 °C.

Description : Which of the following situations can be approximated to a steady state heat transfer system? (A) A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmospheric air at ... flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C

Last Answer : (B) 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C

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 : In a constant pressure process steam is generated from 10 bar and 0.8 dry condition till it become dry and saturated. Determine amount of heat added per kg of steam. From steam table at 10 bar Tsat = 179.9°C hf = 762.6 kl/kg, hg = 2776.2 kJ/kg 

Last Answer : Constant pressure process Final condition of steam is dry saturated Enthalpy of dry steam = hg= hf + hfg =2776.2 KJ/Kg .Given Latent heat of vaporization = hfg = hg - hf =2776.2-762.6 =2013.6 KJ/Kg Initial condition ... hfg = 762.6+0.8 X 2013.6 =2373.48 KJ/Kg Heat added = hg-hw = 402.72 KJ/kg

Description : Flower bearing in ber occurs during a. Spring b. Winter c. Summer d. Autumn

Last Answer : Autumn

Description : Blooming in mango occurs: a. February to Mid April b. January to first week of February c. September-October d. May – June

Last Answer : February to Mid April

Description : Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are (A) 5°C and 1 kgf/cm2 (B) - 20°C and 1 kgf/cm2 (C) 0°C and 1 kgf/cm2 (D) 0°C and 3 kgf/cm

Last Answer : (A) 5°C and 1 kgf/cm

Description : Pour point of a petrofuel is (A) Multiple of 3°F (B) Multiple of 5°F (C) 5°C below the temperature at which oil ceases to flow (D) None of these

Last Answer : (C) 5°C below the temperature at which oil ceases to flow

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 : The optimum temperature for the Banana crop is— (A) 30°C (B) 23°C (C) 21•5°C (D) 26•5°C

Last Answer : (B) 23°C

Description : Thermophilic micro-organism grow well at temperature– 1) 10°C – 20°C 2) 20°C – 40°C 3) 50°C – 60°C 4) 5°C – 7°C

Last Answer : 3) 50°C – 60°C

Description : Which of the following environmental conditions are essential for optimum growth of Mucor on a piece of bread ? A. Temperature of about 25°C B. Temperature of about 5°C C. Relative humidity of about 5% D. Relative humidity of about 95% ... b) A, C and E only (c) A, D and E only (d) B, D and E only

Last Answer : (c) A, D and E only

Description : A batch adiabatic reactor at an initial temperature of 373°K is being used for the reaction, A → B. Assume the heat of reaction is - 1kJ/mole at 373°K and heat capacity of both A and B to be constant and equal ... rise after a conversion of 0.5 will be: (A) 5°C (B) 10°C (C) 20°C (D) 100°C

Last Answer : (B) 10°C

Description : Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8 (A) °C (B) °F (C) °K (D) °R

Last Answer : (B) °F

Description : A standard ice point temperature corresponds to the temperature of (a) water at 0°C (b) ice at - 4°C (c) mixture of ice, water and vapour under equilibrium conditions under NTP conditions (d) mixture of ice and water Under equilibrium conditions.

Last Answer : Ans: D

Description : Water has maximum density at (a) Room temperature (b) 0°C (c) 4°C (d) 100°C

Last Answer : Ans:(c)

Description : At what temperature is the density of water the maximum? (1) 2°C (2) 4°C (3) 0°C (4) 1°C

Last Answer : (2) 4°C Explanation: An especially notable irregular maximum density is that of water, which reaches a density peak at 3.98 °C (39.16 °F).

Description : For every 4°C raise in air inlet temperature of an air compressor, the power consumption will increases by_____ a) 2% b) 1% c) 3% d) 4%

Last Answer : b) 1%

Description : Is there a chart out there that lists the chemical properties of common plants?

Last Answer : http://tinyurl.com/29ys5hb

Description : Should I pinch suckers off my tomato plants even though they've gotten big and now have blossoms on them?

Last Answer : The only disadvantage of suckers is that the more you have, the less the tomatoes will weigh. The more suckers you have, the more tomatoes you will harvest, although they will be smaller. Your choice.

Description : In a landscape design, properly located plants and structures. a. Can reduce heat intensity b. Need to be constantly pruned and maintained c. Block the view of the front door d. Are not essential for a good landscape design

Last Answer : Can reduce heat intensity

Description : Low-growing landscape plants should: a. Be placed in front of intermediate growing plants b. Be placed behind intermediate growing plants c. Not be used in the landscape d. Be planted under large trees

Last Answer : Be placed in front of intermediate growing plants

Description : In plants, __________ is the process of converting stored energy into energy for plant growth. a. Transpiration b. Photosynthesis c. Respiration d. Pollination

Last Answer : Respiration

Description : To make the living area of a landscape appear larger, a designer should include plants that feature: a. Warm-colored flowers such as reds, oranges, yellows b. Cool-colored flowers such as blues, purples, lavenders c. A combination of warm- and cool-colored flowers d. All white flowers

Last Answer : Cool-colored flowers such as blues, purples, lavenders

Description : Plants usually do not grow well in poorly drained soils because: a. Oxygen content is low in poorly drained soils b. The organic matter content of poorly drained soils is too high c. Poorly drained soils warm too quickly in spring d. Plant roots become engorged with water in poorly drained soils

Last Answer : Oxygen content is low in poorly drained soils

Description : Plants that have been clipped or pruned into two-dimensional forms are: a. Espalier b. Topiary c. Balanced d. Dynamic

Last Answer : Espalier

Description : Training plants into three-dimensional ornamental forms, such as animals, is called: a. Topiary b. Espalier c. Heading back d. Bonsai

Last Answer : Topiary

Description : The average humidity percentage recommended for interior plants is: a. 70 to 100% b. 40 to 70% c. 20 to 30% d. 10 to 20%86.

Last Answer : 40 to 70%

Description : Which of the following statements is true? a. Annuals are used as surface material. b. Annuals are used as ground covers. c. Annuals are used as border plants. d. Annuals are used all of above purposes

Last Answer : Annuals are used all of above purposes

Description : The major auxin produced in plants is: a. Indole-3-butyric acid (IBA) b. Naphthalene acetic acid (NAA) c. Indole-3-acetic acid (IAA) d. Ethylene

Last Answer : Indole-3-acetic acid (IAA)

Description : Which of the following statements is true. a. Perennials are used for one season. b. Perennials are good plants for the garden with low maintenance cost. c. Perennials are not easy to grow and establish in beds. d. Perennials are only for foliage beauty

Last Answer : Perennials are good plants for the garden with low maintenance cost.

Description : In temperate climates, pruning should not be done near the end of the summer because: a. New growth will not harden before winter b. It may increase foliage disease c. Plants will not recover in time to produce new growth before winter d. Sever “bleeding” from the cuts will kill the plant

Last Answer : New growth will not harden before winter

Description : Peat is often mixed into the growing medium of container plants because it: a. Is inexpensive b. Has good air and water holding capacities c. Has a high pH d. Absorbs excessive soluble salts

Last Answer : Has good air and water holding capacities

Description : A technique to produce well branched, compact plants with many flowers is: a. Stunting b. Compacting c. Pinching d. Potting

Last Answer : Pinching