Nectar and pollen production in pumpkin (Cucurbita pepo L.)
نویسندگان
چکیده
منابع مشابه
Movement of Soil-Applied Imidacloprid and Thiamethoxam into Nectar and Pollen of Squash (Cucurbita pepo)
There has been recent interest in the threat to bees posed by the use of systemic insecticides. One concern is that systemic insecticides may translocate from the soil into pollen and nectar of plants, where they would be ingested by pollinators. This paper reports on the movement of two such systemic neonicotinoid insecticides, imidacloprid and thiamethoxam, into the pollen and nectar of flowe...
متن کاملSome Physical Properties of Pumpkin (Cucurbita pepo L. ) and Watermelon (Citrullus lanatus L.) Seeds
Some physical properties of pumpkin (Cucurbita pepo L.) and watermelon (Citrullus lanatus L.) seeds were determined at a moisture content of 9.87% and 2.87% (dry basis), respectively. The mean values of length, width, thickness and geometric mean diameter were 19.92, 11.30, 3.22, 9.71 mm for pumpkin seeds, and 13.28, 8.00, 2.64, 6.52 mm for watermelon seeds, respectively. The mean 1000 seed mas...
متن کاملReview of Cucurbita pepo (Pumpkin) its Phytochemistry and Pharmacology
Abstract Cucurbita pepo, is widely used like food and in folk medicine around of the world. This aims a comprehensive of the pharmacological, chemical constituents, and clinical uses. Also have been identified the medicinally important phyto-constituents belonging mainly to cucurbitosides, multiflorane-type triterpenoids, carotenoids, ent-kauranetype diterpene, and cucurbitaglycosides. Extracts...
متن کاملSelenium species determination in selenium-enriched pumpkin (Cucurbita pepo L.) seeds by HPLC-UV-HG-AFS.
Pumpkins were treated by spraying the leaves in the flowering period with a water solution containing 1.5 mg Se per liter in the form of Na2SeO4. The average total selenium content of seeds was found to be 0.19 microg g(-1) in nontreated pumpkins and 1.1 microg g(-1) in exposed ones. For speciation analysis, enzymatic hydrolysis with different amounts of Protease XIV was carried out. Under opti...
متن کاملThe influence of plant growth regulators on callus induction in pumpkin (Cucurbita pepo L.) hairy roots.
Following in vitro infection with Agrobacterium rhizogenes wild strain (mannopine, 8196) and two A. tumefaciens transconjugant strains (C58C1 pArA4abc and C58C1 pArA4b) transformed (hairy) roots were induced in pumpkin (C. pepo L.) cotyledons. The presence of pRi T-DNA in pumpkin long-term hairy root cultures was determined by Southern hybridization. The influence of plant growth regulators on ...
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ژورنال
عنوان ژورنال: Revista Brasileira de Botânica
سال: 2006
ISSN: 0100-8404
DOI: 10.1590/s0100-84042006000200008