Method of plant breeding for crop improvement - class-IX
Description: method of plant breeding for crop improvement | |
Number of Questions: 59 | |
Created by: Amit Pandey | |
Tags: food production breeding and biotechnology biology cell biology and biotechnology strategies for enhancement in food production botany plant breeding |
The agriculture sector of India employs about
Desired improved variety of economically useful crops are raised by
Vegetable crop cultivation is known as
Wide hybridisation has been used for producing
First artificial hybrid was obtained by crossing sweet william and carnation in $1717$ by
Totipotency is accurately defined as
Norin-10 gene is
Which of the following instrument can be used to record plant growth by seconds?
The aim of plant breeding programme is to produce
Which is not applicable to the biological species concept?
Hybrid of maize is grown frequently because of
Crosses between the plants of the same variety are called as
Aim of plant breeding is to produce
The process of removing stamens from the flower bud during hybridization is called as
Sugarcane breeding research institute (SBRI) is situated at
Mysore has one of the following institute
Hexaploid or moderm wheat developed through ______________.
Majority of improved Indian Rice varieties have arisen from a cross between
Aim of plant breeding is to
Four inbred/pure lines of Maize are crossed. The cross is
A cybrid is hybrid carrying
Branch of biology dealing with improvement of plant variety
From which technique, new and better varieties of crop plants are formed
During hybridisation, offspring with hybrid vigour superior to both parents are self pollinated for a few successive generations to .............
During somatic hybridisation in plants
For hybridisation, which part is removed from bisexual flowers
Consider the following statements: Hybrid plants can show.
a. Sterility
b. Mosaicism
c. Crossing over
d. Vigour
e. Homozygosis
Which of the statements are correct?
Plant breeders are interested in apomixes because it __________________.
A breeder crossed a pure bred all plant having white flowers to a pure bred short plant having blue flowers. He obtained $202\ F _{1}$ progeny and found that they are all tall having white flowers. Upon selfing there $F _{1}$ plants, he obtained a progeny of $2160$ plants. Approximately, how many of these are likely to be short and having blue flowers?
Process of bringing wild species of plants under cultivation to suit human needs is called
The main objective of plant breeding is to develop new crop varieties superior in all aspects as compared to the existing types.
Which of the following variety of rice has been produced by the hybridisation of Oryza japonica and O. indices?
Collection of genetic variability is required in plant breeding programme because
"Bengal Desi" is a Hybrid variety of which of the following crops?
How many meiotic divisions are necessary for the formation of 100 grains of wheat?
In high yielding hybrid crop varieties to exploit hybrid vigour, the farmers need to purchase fresh hybrid seed every year because
The first natural hybridization in corn was done by
Pomato is a hybrid of
Which one is a plant wax?
Which of the following is a correct match between crop, variety and resistance to diseases?
Which one of the following is not a fungal disease?
Black rust of wheat is caused by
Which of the following is incorrectly matched?
Use of certain chemicals and radiation to change the base sequence of genes of crop plants is termed
The hybrids are generally found to be superior to their parents, it is because of
Mutation is a
IR-36 was developed through breeding of
Steps to be followed by a plant breeder to get disease-resistant crops are.
Most herbicide interfere with
Virus free plant can be obtained through
Plants show orange patch on infected plant parts
Himgiri developed by hybridisation and selection for disease resistance against rust pathogens is a variety of
Breeding for disease resistance requires
Match the columns:
I | II | ||
---|---|---|---|
a | Mutation breeding | 1 | Johannsen |
b | Inbreeding depression | 2 | Karpechenko |
c | Pureline selection | 3 | Darwin |
d | Intergeneric hybridization | 4 | Staddler |
5 | Shull |
The Ear cockier of wheat can be differentiated from Molya disease of wheat by the fact that in the former.
Which one of the following is the indigenous breed of chickens ?
Which one of following breeds of cattle is a cross-breed and high milk yielding ?
Which pathogen causes the blast disease of rice?