Figure 1. General tissue and cell organization of a higher plant.
Figure 2. Intracellular structures found in cells of higher plants.
Figure 3. Leaf and chloroplast morphology of higher plants.
Figure 4. Global distribution of radiation across the earths
Figure 1. Impact of light intensity on leaf photosynthetic rate.
Figure 2. Response of leaf photosynthesis of several species to changes in light intensity.
Figure 3. Influence of incident radiation on photosynthesis. (Larcher, Physiological Plant Ecology
Learning Objectives - Environment and
Understand that net CO2 assimilation per day = daily net Ps - nighttime
Be able to related to crop growth and adaptation to the equation: net Ps
- RD = growth + storage.
Understand the influence of
Influence of various wavelengths of light on growth and development of plants.
280 to 320
Detrimental to growth
320 to 400
Response of field-grown corn plants to increasing light intensity. Reflectors were
placed on north side of row when plants were 40 inches tall.
Grain yield, g/plant
Plant height, cm
Learning Objectives - Photosynthesis and Dark
Understand the role of photosynthesis in plant dry wt. accumulation.
Understand the role of photosynthesis with other plant processes.
Understand the benefits animals derive from photosynthesis.
November 14, 2016
Global Change and the Challenge of
Sustainably Feeding a Growing Planet
An interdisciplinary course at Purdue University
Offered by Thomas W. Hertel
Department of Agricultural Economics
Spring Semester, 2017
Jan 28- Feb 3
Over the last 7 days there wasnt much being discussed over the Iranians involvement
with enriched uranium. However there were multiple situations where in many different parts of
the world there was conversation of how to resolve potential c
March 4 10
This week in the Middle East the issues of trying to come to a deal with Iran about its
nuclear weapons program is still at a stalemate in terms of where the U.S. and the other powers
want the country to pass up. Also in the news Saudi Arabia h
Feb 18- Feb 24
According to the news activities this week tend to be making slow progress. The deal that the
Iran government and the U.S. have been trying to work out for the past month have yet made any
progress as to coming to a conclusion. At the same
Feb 4 Feb 10
Things got a little interesting in the Middle East this week there was a lot of talk about
the Iranian government releasing the blueprints of their detonators they were producing. Also
there was talk about trying to set another deal with NATO
This week the talk of the news tends to be about the negotiators of the US and Iran
trying to come a deal about Irans production of enriched Uranium. Obviously the
United States doesnt want Iran to become a nuclear capable country due to the ris
March 11 17
In this weeks news there is some worry about another arms race erupting in the Middle
East some are calling the next cold war. Even though the big powers have agreed to dismantle
there so called super bombs over a century ago the treat is now
Feb 25 March 3
This time the news is all about the supposed deal that is supposed to being made but
apparently the United States is running out of time before Iran has enough enriched uranium to
begin manufacturing nuclear warheads. Obviously Israel is tr
Feb 11 Feb 17
Not much has changed in a since that the negotiation havent made any progress in terms
of finding a point of a truce. Once you get away from the negotiations and the deals the people
around the world are showing more and more worry about wha
Over the last few years there has been concern in the Middle East that pertains to Iran.
The US and other major powers have been monitoring their actions and quickly realized they
were attempting to become an interco