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How Ozone Has Affected the Productivity of Plants on Long Island. Margaret T. McGrath Dept. of Plant Pathology and Plant-Microbe Biology, LIHREC, Cornell University, Riverhead, NY [email protected] Ozone Injury in Potato and Watermelon. Ozone Injury Pole Bean.

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How Ozone Has Affected the Productivity of Plants on Long Island

Margaret T. McGrath

Dept. of Plant Pathology and Plant-Microbe Biology,

LIHREC, Cornell University, Riverhead, NY

[email protected]





Tomato Ozone Injury Long Island

6-23-03


Pumpkin Long Island

Ozone Injury


Pumpkin Long Island

Ozone Injury


Turk’s Turban Gourd Long Island

Ozone Injury




Ozone Injury9-7-07 Long Island


Plant Systems Developed for Determining Impact of Ambient Ozone on Plant Productivity:

Ozone Sensitive and Tolerant

White Clover Clones

Snap Bean Lines


Impact of Ambient Ozone on Plant Productivity on LI: Ambient Ozone on Plant Productivity:

Reduction in Clover Biomass Estimated Based on Comparing

Sensitive and Tolerant Clones


Clover System for Assessing Ozone Impact Ambient Ozone on Plant Productivity:

Ozone-sensitive and ozone-tolerant clones.

10 plants of each grown outdoors in pots.

Foliage removed, dried, and weighed every 28 days.


Clover Project Activity Dates Ambient Ozone on Plant Productivity:



Impact of Ambient Ozone on Plant Productivity on LI: Clone

Reduction in Snap Bean Yield Estimated Based on Comparing

Sensitive and Tolerant Lines



Assessing Ambient Ozone Impact on Plant Productivity in NY

with Snap Bean Genotypes

Differing in Ozone Sensitivity

Planting 1: 5/19/04 5/17/05 5/25/06 5/14/07 5/14/08

Planting 2: 6/16/04 6/17/05 7/3/06 6/12/07 6/12/08

Planting 3: 7/22/04 7/13/05 7/31/06 7/11/07 7/11/08





Fresh Market Yield Reduction in Sensitive Snap Bean Line (pod wt)

Planting 1: 5/19/04 5/17/05 5/25/06 5/14/07 5/14/08

Planting 2: 6/16/04 6/17/05 7/3/06 6/12/07 6/12/08

Planting 3: 7/22/04 7/13/05 7/31/06 7/11/07 7/11/08


7/25/08 Line (pod wt)

Planting

#2

Harvested

7/31 - 9/5


8/3/08 Line (pod wt)

Planting

#2

Fresh Market Pod Yield:

62% less wt

38% less #


Ozone Concentrations, July 2008 in Riverhead, Long Island, NY

Number Hours Ozone (ppb) Exceeded


July rainfall: Island, NY

0.22 inch 7/4

0.05 inch 7/20

Ozone high:

15-21 July


Mature Seed Number Reduction in Sensitive Snap Bean Line

Planting 1: 5/19/04 5/17/05 5/25/06 5/14/07 5/14/08

Planting 2: 6/16/04 6/17/05 7/3/06 6/12/07 6/12/08

Planting 3: 7/22/04 7/13/05 7/31/06 7/11/07 7/11/08


Mature Seed Weight Reduction in Sensitive Snap Bean Line

Planting 1: 5/19/04 5/17/05 5/25/06 5/14/07 5/14/08

Planting 2: 6/16/04 6/17/05 7/3/06 6/12/07 6/12/08

Planting 3: 7/22/04 7/13/05 7/31/06 7/11/07 7/11/08


Impact of Ambient Ozone on Plant Productivity on LI: Line

< 30% Reduction in Clover Biomass

(during a 28-d growth period; 20% overall)

< 62% Lower Fresh Market Bean Wt

< 56% Fewer Mature Bean Seeds

< 42% Lower Mature Bean Seed Wt


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