___________ is an asexual propagation technique were
small pieces of tissue are placed in a sterile culture containing all the
nutrients, carbohydrates and hormones needed for growth.
tissue culture
___ is an example of parthenocarpic fruit.
Washington Navel Orange
_____ is the development of a fruit without seeds.
parthenocarpy
Plants produce flowers when they are in the _________ phase.
adult
The top part of a graft is called the ___________.
scion
______is NOT a mode of action of pesticides.
biological
If John Q. Public discovers a very unique looking holly
shrub and propagates it by cuttings to produce thousands of young plants, then
that population or group of plants would be a good example of
_________________.
a clone
Two disadvantages of sexual propagation are: ___ & ____.
seeds are difficult or slow
to germinate and the offspring has genetic variability
_________ is NOT an objective or advantage of pruning.
decrease productivity
_____ is NOT an advantage of grafting.
hybrid production
When sections of an Irish potato (tuber) as used for vegetative propogation this is a form of _______________.
stem cutting
_____is a chemical pinching agent that overcomes apical
dominance.
atrinal
____is the part of the flower containing the pollen grains
anther
__________ is the number of replicate chromosomes present in the nucleus of a cell.
ploidy
The egg and sperm nuclei are also called _____________.
gamenuclei
____ is a pest is controlled by fungicides.
sooty mold
_______is NOT a mode of action of pesticides
biological
Two disadvantages of asexual or vegetative propagation are:
few offspring from each parent and requires a lot of labor
Fertilization is the union of one male gamete and one female gamete to produce a _____________.
zygote
______________is the type of dormancy caused by chemical inhibitors in the fruit wall or seed coat.
correlated inhibition
Sexual reproduction in higher plants involves the union of several nuclei in a process called __________________ fertilization.
double
The top part of a graft is called the ___________.
scion
A ________________ is a mollusk.
slug
Plants that are ________________________ can not be successfully grafted.
monocots
To make the canopy of a tree more dense, ________________
should be used.