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Document Type |
: |
Article In Journal |
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Document Title |
: |
Impact of ambient air on physiology, pollen tube growth, pollen germination and yield in pepper (Capsicum annuum L.). تأثير الهواء المحيط على كل: من وظائف الأعضاء، ، إنبات حبوب اللقاح ونمو أنابيبها ، والمحصول الناتج لنبات الفلفلة. |
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Subject |
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Enviromental sciences |
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Document Language |
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English |
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Abstract |
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Pepper (Capsicum annuum L.) plants were exposed in open top-chambers to non-filtered ambient air (NFAA) and to
charcoal filtered air (FA) to study the effect of ambient air on physiological parameters, growth, yield, as well as pollen tube
and pollen growth of plants. NFAA caused reductions in net photosynthetic rates (19%), stomatal conductance (26%), yield
components (29% and 25% losses in fresh weight and number of fruits/plant, respectively) as well as degradation of
epicuticular wax of its leaves. Moreover, pollen collected from plants grown in NFAA showed lower germination rates and
reductions in pollen tube length (41 and 10%, respectively). Our results showed that detrimental effects of O3 on
reproductive growth and development are compromising current crop yields and the fitness. Fresh weight of pods was
reduced by 29% due to exposure to NFAA. The significance of pollutant-induced impairment of pollen germination and
growth for reproductive development are discussed. To the best of our knowledge, this is the first report demonstrating the
marked reduction in pollen germination rates and pollen tube length and their significance to crop physiology and yield from
the environment in the developing world. |
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ISSN |
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0556-3321 |
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Journal Name |
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PAKISTAN BOTANICAL SOC, DEPT OF BOTANY UNIV KARACHI, 32 KARACHI, PAKISTAN |
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Volume |
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45 |
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Issue Number |
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3 |
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Publishing Year |
: |
1434 AH
2013 AD |
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Article Type |
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Article |
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Added Date |
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Monday, June 3, 2013 |
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Researchers
| WAFAA TAIA | TAIA, WAFAA | Researcher | | |
| جلال باصهي | BASAHI, JALAL | Researcher | Doctorate | |
| ابراهيم حسن | HASSAN, IBRAHIM | Researcher | | ihassan_eg@yahoo.com |
|
Files
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35609.pdf
| pdf | IMPACT OF AMBIENT AIR ON PHYSIOLOGY, POLLEN TUBE GROWTH, POLLEN
GERMINATION AND YIELD IN PEPPER (CAPSICUM ANNUUM L.) |
|