Horticulture MCQ 80 Helping You in Your Upcoming Exams
Q1.Rutabaga is a cross between?
Cauliflower & Cabbage
Cauliflower and Turnip
Cabbage and Turnip
Radish and Turnip
Answer:- Cabbage (Brassica oleracea) and Turnip(Brassica rapa) =Rutabaga (Brassica napus)
chromosome number 2n = 38 (allopolyploid)
Q2.Coconut seedlings are ready to Transplanted after how much time?
2-5 months
9-12 months
5-8 months
12-15 months
Answer:- 9-12 months
Coconut plant produce their first fruit in six to ten years, taking 15 to 20 years to reach peak production thus it is perennial and monocot plant.
Q3.Epicotyl/Stone grafting is performed on seedling Rootstock of the age?
1 week
2 weeks
3 weeks
4 weeks
Answer:- 2 weeks
Epicotyl/Stone grafting mainly used in mango in south India.
Q4.Floribunda is a cross between?
HTx Dwarf Polyanthas
Hybrid Perpetual x China Tea Roses
HT Floribundas
None of these
Answer:- HTx Dwarf Polyanthus
Floribunda roses are hardy hybrids that resulted from crossing hybrid teas with polyanthus.
Q5.which of the following is First Indian who won World food prize was?
Vergese kurien
S. Swaminathan
K. Roy
L Chadha
None of these
Answer:- M.S. Swaminathan
For developing and introducing of high-yielding wheat and rice varieties into India during the 1960s.
Q6.Grafting in monocots is difficult to perform because?
Absence of vascular cambium
Scattering of vascular bundles
Absence of secondary growth
None of the above
Answer:- Absence of vascular cambium
As the vascular cambium is the main growth tissue in the stems and roots of many plants.
Q7.First auxin developed by F. W. Went in the year 1928 was?
IAA
PAA
IBA
None of the above
Answer:- IAA Its is also natural auxin whereas other are synthetic auxin
In 1928, the Dutch botanist Frits Warmolt Went showed that a chemical messenger diffuses from coleoptile tips. Went’s experiment identified how a growth promoting chemical causes a coleoptile to grow towards the light.
Q8.Preservation of cells, tissue and organ in liquid, nitrogen is known as?
Cryopreservation
Cold preservation
In-situ preservation
None of these
Answer:- Cryopreservation process that preserves organelles, cells, tissues, or any other biological constructs by cooling the samples to very low temperaturesor at sub-freezing temperatures, below −80°C and typically below −140°C.
Q9.Application of chemical fertilizers using modern irrigation techniques is known as?
Chemigation
Fertigation
Foliar Spray
None of these
Answer:- Fertigation Mainly through drip irrigation.
Q10.Wind breakers are planted in the direction?
South-East
South-West
North-East
North-West
Answer:- South-West
Wind breakers Any physical barrier which restrict or reduce air current.
Horticulture MCQ 80
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