Question { 3839 }

Whta is forensic Botany deals with?

Answer

Forensic botany is the study of plants, and plant matter,
as they pertain to criminal death investigations. Forensic
botany can provide clues as to when a person died by giving
investigators a time frame in which approximations of time
of death can adhere to

Question { 3592 }

Which color of light works best when growing plants?

Answer

Green and blue lights works best when growing plants

Question { 6781 }

what are the examples of protandrous tropical crops?

Answer

Eranthemum, Pseuderanthemum, Clerodendrum

Question { 3358 }

What are the effects of different temperatures on plants?

Answer

Review of Temperature Effects on Plant Growth:
Photosynthesis: Increases with temperature to a point.

Respiration: Rapidly increases with temperature.

Transpiration: Increases with temperature.

Flowering: May be partially triggered by temperature.

Sugar storage: Low temperatures reduce energy use and
increase sugar storage.

Dormancy:Warmth, after a period of low temperature, will
break dormancy and the plant will resume active growth.

Question { 4961 }

Define photosynthesis?

Answer

The process in green plants and certain other organisms by
which carbohydrates are synthesized from carbon dioxide and
water using light as an energy source. Most forms of
photosynthesis release oxygen as a byproduct.

Question { 4174 }

Give classification of cyanobacteria?

Answer

The cyanobacteria were traditionally classified by
morphology into five sections. The first three -
Chroococcales, Pleurocapsales, and Oscillatoriales - are
not supported by phylogenetic studies. However, the latter
two - Nostocales and Stigonematales - are monophyletic, and
make up the heterocystous cyanobacteria.

The members of Chroococales are unicellular and usually
aggregate in colonies.

In Pleurocapsales, the cells have the ability to form
internal spores (baeocytes).

The rest of the sections include filamentous species.

In Oscillatoriales, the cells are uniseriately arranged and
do not form specialized cells (akinetes and heterocysts).

In Nostocales and Stigonematales the cells have the ability
to develop heterocysts in certain conditions.

Stigonematales, unlike Nostocales, includes species with
truly branched trichomes.

Question { 4369 }

How do you differentiate Hardwood from Softwood?

Answer

Softwoods originate from coniferous trees (also known as
evergreens, or gymnosperms). Rather than losing their
leaves all at one time, they tend to shed their leaves
(which resemble and are called "needles") throughout the
year and bear cones.

Hardwoods, on the other hand, come from deciduous trees
which lose their leaves throughout the year and produce
seeds covered with some kind of covering (sometimes a fruit
or nut).

Boreal forests located in the northern latitudes contain
mostly softwoods, while the equatorial regions of the world
grow mostly hardwoods.

Softwood trees include cedar, cypress, fir, hemlock, larch,
pine, redwood, spruce and yew. Hardwood trees include oak,
beech, ash, maple and cherry.

Most things constructed of wood today are made from
softwood. Softwood is less expensive to use. It grows more
faster than hardwood, and since it can be replenished more
quickly it is thought to be a more environmentally friendly
option. Hardwoods are often used for their beautiful
grains, and high-end furniture and floors are made with a
hardwood like oak or maple.

Question { 3950 }

What are the affects of 5% hypertonic solution of sodium
chloride and 10% solution on plant cell?

Answer

the plasmolysis, or the shrinking of the cytoplasm of a
plant cell in response to diffusion of water out of the
cell and into a hypertonic NaCl solution: the bigger the
concentration of NaCl, the bigger the diffusion of water,
thus bigger shrinking.

Question { 3761 }

what is the smallest flower?

Answer

The smallest flowers in the world belong to the smallest
flowering plant, a species of watermeal called Wolffia
arrhiza.
These plants are free-floating thalii (stems), green or
yellow-green and without roots, 1-5 mm long. Sometimes it
forms inflorescences made of one female flower and two-male
one. The whole inflorescence is of maximum 1 mm!

Question { 4485 }

what make the color in a flower?

Answer

Color we see in flowers is actually the result of reflected
light from various plant pigments. A group of compounds
called "anthocyanidins" are the basic ingredients.It is
these anthocyanidin pigments that biotechnologists are
studying to change flower colors

Question { 4158 }

what is homology?

Answer

In evolutionary biology, homology refers to any similarity
between characteristics that is due to their shared
ancestry.

Question { 3890 }

which is the oldest tree?

Answer

The world's oldest recorded tree is a 9,550 year old spruce
in the Dalarna province of Sweden.

Question { 3886 }

What kind of wood is used to make tobacco pipes?

Answer

Briar wood cut from root burl of Erica arborea which is
native to the rocky and sandy soils of the Mediterranean
region is used to make tobacco pipes

Question { 3426 }

Why do some seeds not germinate?

Answer

Many kinds of seeds have very thick seed coats. These
obviously keep water out of the seed, so the embryo cannot
get the water needed to activate its metabolism and start
growing.

Many plant species invest chemicals in the developing
seeds, and these chemicals inhibit the development of the
embryos. They keep the embryos dormant. Obviously the seed
must have some way to eliminate these chemicals before they
can sprout.

Many temperate zone species that use inhibitors use
abscisic acid. This chemical induces dormancy in the
embryo. The chemical is produced in abundance in the late
summer and early fall. The seeds in the fruits become
dormant so, even if they are dispersed in autumn, they
cannot sprout.

Question { 3664 }

Which are the techniques used for Haploid plant
identification obtained through Anther culture of Rice?

Answer

Anther culture