Fechar
what does shade light control?
nutrition is found in the...
how does heat & light intensity affect a plant?
what are the MOST desirable traits in a plant? and why?
how many traits can you place in a plant for a change?
selective breeding for plants. describe the steps.
name good traits of parent plants.
complete the equation -
phenotype = ....+......
why is a bag used when selective breeding
plants?
why are glasshouses be used when growing plants
how is the 'heritability' equation,
*phenotype=genotype+environment*
come in handy? useful?
complete the heritability equation
1.0 = 7.0 + ?
complete the heritability equation
1.0 = ? + 0.4
how is the process of hybrid/crossbred varieties implemented?
what are some characteristics when it comes to the offspring that has resulted from the "inbreeding and crossbreeding" technique.
how is inbreeding an important part of the cross-breeding process
name the male and female sexual reproduction organs of a maize plant
TRUE OR FALSE
corn kernels are white when they aren't fertilised and yellow when they are fertilised
define hybrid vigour
define a single-cross hybrid?
what happens when a single-cross hybrid is allowed to open-pollinated, in relation to corn
what is genetic engineering?
what is the process(es) of genetic engineering?
give an example of a process called 'revering sequence'
what is meant by the term " inbreeding then crossbreeding"?
give examples that farmers use the 'inbreeding and crossbreeding' technique on?
define cross breeding? give examples of crops that have been experimented upon?
what are the objectives of plant breeding?
what is the advantages of maturity duration
define and explain the importance of soil pH
under ACIDIC conditions what elements aren't available?
under alkaline conditions what elements can become more SOLUBLE?
define the term CEC (cation exchange capacity)
what is the importance of CEC?
Define the term soil carbon? ( organic matter)
what is the importance of soil carbon
name the major macronutrients
name the minor micronutrients
define soil CO2 levels
what is the importance of soil CO2 levels
define soil structure
what is the importance of soil structure?
