In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called
selection of superior recombinants
cross- hybridisation among the selected parents
evaluation and selection of parents
germplasm collection
D.
germplasm collection
Germplasm collection is the collection of plants/ seeds having all the diverse alleles for all genes in a particular crop. Selection of superior recombinants means selection of the best plant from the whole lot by visual examination and collecting their seeds for growing in field.
Cross hybridisation is the method of combining. The characters of different plants together. The selection and evolution are the main steps of hybridisation.
The process in which mature differentiated cells reverse to meristematic activity to form callus is called
redifferentiation
dedifferentiation
cyto-differentiation
differentiation
Which of the following plant is efficient converter of solar energy whose net productivity is 2-4 kg/m2/yr or even higher?
Wheat
Rice
Sugarcane
Bajra
Which of the following is the best suited method for the production of virus free plants?
embryo culture
meristem culture
ovule culture
anther culture
On the basis of utility, Nagpuri buffaloes are categorized as
milkers
dual purpose
drought cattle
grazers
Which of the following is an example of a defence used by plants against herbivorous?
I. Production of caffeine, tannin, quinine.
II. More production of non-woody tissues.
III. Production of hairs, thorns, spines.
IV. Production of hormones like chemicals that interfere with insect metamorphosis.
Select the correct codes
I and II
II, III and IV
I, II and III
I, III and IV
