Nectar secretion and pollen production in protandrous flowers of Campanula patula L. (Campanulaceae)
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چکیده
منابع مشابه
Studies on Seed Morphology of Campanula L. Section Quinqueloculares (boiss.) Phitos (campanulaceae) in Turkey
Morphological features of seeds of 9 species of Campanula L., section Quinqueloculares (Boiss.) Phitos (Campanulaceae) which are distributed in Turkey were investigated by scanning electron microscopy (SEM). Characteristics of the seeds and their surface are described and compared. Two main types and two subtypes of surface ornamentation patterns are observed. These can be considered as diagnos...
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Various postharvest treatments were evaluated for effect on longevity and quality of cut Campanula medium L. ‘Champion Blue’ and ‘Champion Pink’ stems. Stems stored at 2 °C either wet or dry had no difference in vase life or percent flowers opened; however, flowers stored dry had a slightly greater percentage of senesced flowers at termination. Increasing storage duration from 1 to 3 weeks decr...
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Many zoophilous plants attract their pollinators by offering nectar as a reward. In gynodioecious plants (i.e. populations are composed of female and hermaphrodite individuals) nectar production has been repeatedly reported to be larger in hermaphrodite compared to female flowers even though nectar production across the different floral phases in dichogamous plants (i.e. plants with time separa...
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Almost all bees collect nectar and pollen from flowers. Female bees collect pollen to provision their nest cells, whereas they use nectar for individual energy supply and nest cell provisioning. Bees fine-tune nectar foraging to the amount and to the concentration of nectar, but the individual bees' response to variability of amount and concentration of pollen reward has not yet been studied th...
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The flowers of French marigold (Tagetes patula L.) are widely used in folk medicine, in particular for treating inflammation-related disorders. However, cellular mechanisms of this activity demand further investigation. In the present work, we studied the potential of T. patula compounds to alleviate the oxidative stress in hydrogen peroxide-challenged human lymphoblastoid Jurkat T-cells. Crude...
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ژورنال
عنوان ژورنال: Acta Agrobotanica
سال: 2018
ISSN: 2300-357X
DOI: 10.5586/aa.1734