نتایج جستجو برای: fructification

تعداد نتایج: 186  

Journal: :Plant biology 2010
M A Munguía-Rosas V J Sosa M E Jácome-Flores

It has been suggested that there is a geographic dichotomy in the pollination systems of chiropterophilous columnar cacti: in intra-tropical areas they are pollinated almost exclusively by bats, whereas in extratropical areas they are pollinated by bats, birds and bees. However, currently the studies are clumped both taxonomically (mainly Pachycereeae species) and geographically (mainly in the ...

2015
Matteo BRACALINI Matteo CERBONESCHI Francesco CROCI Tiziana PANZAVOLTA Riziero TIBERI Carola BIANCALANI Sofia MACCONI Stefania TEGLI

The exotic western conifer seed bug (WCSB) Leptoglossus occidentalis Heidemann is considered one of the most important pests of stone pine nut production in the Mediterranean region. However, aside from radiographic analysis, none of the diagnostic tools, already implemented in North America to assess the real impact of the WCSB on conifer seeds, have found application on the European stone pin...

2016

The Charophyta have been frequently the object of study of the appearance of streaming of protoplasm, yet the fundamental questions regarding their physiology remained almost wholly untouched. The Charophyta, biologically, represent a fairly devel­ oped type among the Thallophyta. Regarding nutrition they remind us of higher plants because of the presence of rhizoids. According to Bi e r b e r ...

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