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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.

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Presentation on theme: "How Ozone Has Affected the Productivity of Plants on Long Island Margaret T. McGrath Dept. of Plant Pathology and Plant-Microbe Biology, LIHREC, Cornell."— Presentation transcript:

1 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 mtm3@cornell.edu

2 Ozone Injury in Potato and Watermelon

3 Ozone Injury Pole Bean

4 Tomato Ozone Injury 5-18-04

5 Tomato Ozone Injury 6-23-03

6 Pumpkin Ozone Injury

7 Pumpkin Ozone Injury

8 Turk’s Turban Gourd Ozone Injury

9 Ozone Injury 8-14-07

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11 Ozone Injury 9-7-07

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13

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15 Plant Systems Developed for Determining Impact of Ambient Ozone on Plant Productivity: Ozone Sensitive and Tolerant White Clover Clones Snap Bean Lines

16 Year hrs O 3 >80 ppb Peak (ppb) Date 199660 16 days 121 16-18 July 1997124 25 days 146 25-26 June 1998121 30 days 129 26 June 1999184 31 days 123 7 June 200077 18 days 145 10 June 2001 >67 >17 days 122 9 Aug 200294 24 days 129 18 July 200340 8 days 118 27 June 2004 >10 >4 days 104 9 June 200595 25 days 126 5 Aug 200665 19 days 168 18 Jul 200747 14 days 108 2 Aug

17 Year hrs O 3 >80 ppb Peak (ppb) Date 199660 16 days 121 16-18 July 1997124 25 days 146 25-26 June 1998121 30 days 129 26 June 1999184 31 days 123 7 June 200077 18 days 145 10 June 2001 >67 >17 days 122 9 Aug 200294 24 days 129 18 July 200340 8 days 118 27 June 2004 >10 >4 days 104 9 June 200595 25 days 126 5 Aug 200665 19 days 168 18 July 200747 14 days 108 2 Aug

18 Year hrs O 3 >80 ppb Peak (ppb) Date 1997124 25 days 146 25-26 June 1998121 30 days 129 26 June 1999184 31 days 123 7 June 200077 18 days 145 10 June 2001 >67 >17 days 122 9 Aug 200294 24 days 129 18 July 200340 8 days 118 27 June 2004 >10 >4 days 104 9 June 200595 25 days 126 5 Aug 200665 19 days 168 18 July 200747 14 days 108 2 Aug 2008 >57 >20 days 128 19 July

19 Impact of Ambient Ozone on Plant Productivity on LI: Reduction in Clover Biomass Estimated Based on Comparing Sensitive and Tolerant Clones

20 Clover System for Assessing Ozone Impact Ozone-sensitive and ozone-tolerant clones. 10 plants of each grown outdoors in pots. Foliage removed, dried, and weighed every 28 days.

21 Clover Project Activity Dates

22 Reduction in Biomass Produced by Sensitive Clover Clone

23 Impact of Ambient Ozone on Plant Productivity on LI: Reduction in Snap Bean Yield Estimated Based on Comparing Sensitive and Tolerant Lines

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25 Snap Bean Lines Differing in Ozone Sensitivity S156 R331

26 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

27 Seeding Planting #2 6/16/04

28 Planting #1 7/19/04

29 Planting #1 7/28/04

30 Fresh Market Yield Reduction in Sensitive Snap Bean Line (pod wt) Year Planting 1 Planting 2 Planting 3 200446%42%15% 200517%49%56% 200643%28%(17%) 200723%30%29% 2008(11%)62%25% 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

31 7/25/08Planting#2Harvested 7/31 - 9/5

32 8/3/08Planting#2 Fresh Market Pod Yield: 62% less wt 38% less #

33 Ozone Concentrations, July 2008 in Riverhead, Long Island, NY Number Hours Ozone (ppb) Exceeded

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36 July rainfall: 0.22 inch 7/4 0.05 inch 7/20 Ozone high: 15-21 July

37 Seeding Date Yield Reduction Ozone Exposure (ppb) Fresh market Mature bean avg AOT 40 (harvest 1) AOT 40 (last harvest) 6/27/0335%64%2827053460 5/25/0643%54%44604511597 7/3/0628%30%4889049596 7/31/0617%16%3834809928 5/14/0723%37%4544167643 6/12/0731%48%46556110451 7/11/0729%55%4049156827

38 Mature Seed Number Reduction in Sensitive Snap Bean Line Year Planting 1 Planting 2 Planting 3 200424%28%49% 200532%22%56% 200621%(12%)(8%) 200722%24%38% 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

39 Mature Seed Weight Reduction in Sensitive Snap Bean Line Year Planting 1 Planting 2 Planting 3 200436%24%27% 200517%24%22% 200642%21%(7%) 200720%32%28% 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

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