Results 41 to 50 of about 170,502 (199)
Pollen-stigma interference in two gynodioecious species of Lamiaceae with intermediate individuals.
Annals of Botany, 2007 BACKGROUND AND AIMS Intermediate individuals (perfect flowers with very high degree of pollen abortion) in a gynodioecious plant species are very rare. A study is made of male-female relationships in each flower type and how floral characters can enhance
T. Rodríguez‐Riaño, A. Dafni
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Annals of Botany, 2020 BACKGROUND Pollen transfer via animals is necessary for reproduction by ~80% of flowering plants, and most of these plants live in multispecies communities where they can share pollinators.
T. Ashman +3 more
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Climate-Related Floral and Vegetative Size Variation in Leptosiphon androsaceus (Polemoniaceae) [PDF]
, 2012 Phenotypic plasticity in plants is a vital adaptive response to changing environmental conditions. Floral and vegetative morphology often varies as biotic and abiotic factors vary.
Morrow, Aggie
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Nordic Journal of Botany, EarlyView.Dalechampia microcalyx is described as new to science and Dalechampia viridissima is recorded for the first time for the state of Pernambuco, Brazil. Both species occur in remnants of the Atlantic Forest in the state, found in the municipalities of Vicência and São Lourenço da Mata, respectively.
Jone Clebson Ribeiro Mendes +4 more
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Annals of Botany, 2011 BACKGROUND In angiosperm evolution, autogamously selfing lineages have been derived from outbreeding ancestors multiple times, and this transition is regarded as one of the most common evolutionary tendencies in flowering plants.
A. Sicard, Michael Lenhard
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Passiflora quimiana, a new species from the Cordillera del Cóndor: Ecuador's far‐flung frontier
Nordic Journal of Botany, EarlyView.A new species of Passiflora subgenus Decaloba, supersect. Decaloba, from the Cordillera del Cóndor in Ecuador, is described and illustrated, with its morphological similarities to other species being discussed in this paper. Passiflora quimiana exhibits the unique combination of narrow ovate to long‐oval leaves and small foliaceous bracts ...
J. R. Kuethe +4 more
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Journal of Experimental Botany, 2012 Although self-incompatibility (SI) in plants has been studied extensively, far less is known about interspecific reproductive barriers. One interspecific barrier, known as unilateral incongruity or incompatibility (UI), occurs when species display ...
Subbaiah C. Chalivendra +12 more
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Seed production in dianthus (Dianthus plumaris L.) : a thesis presented in partial fulfilment of the requirement for the degree of Master of Applied Science in Seed Technology at Massey University, Palmerston North, New Zealand [PDF]
, 1998 Stigma receptivity, method of pollination and seed production under glass house and field conditions of ten Hammett Dianthus (Dianthus plumaris L.) cultivars were investigated in this study.
Hewage, Nandana Pushpakumara
core
Oikos, EarlyView.Interspecific pollen transfer (IPT), the pollen movement between plant species via shared pollinators, reduces the reproductive success of pollen‐recipient plants due to hybridization with heterospecific pollen grains. As a result, IPT hinders coexistence of sympatric, co‐flowering species by reducing their reproductive success.
Keiichi Morita +2 more
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Phytochemical Analysis, EarlyView.ABSTRACT Introduction Terpenes, which are found in high concentrations in the essential oil fraction of the Cannabis sativa flower, have demonstrated potential in many therapeutic and industrial applications. Objectives This work reports on a method developed for quantifying 18 terpenes in C. sativa essential oil obtained through hydrodistillation. The
Noelle Joy +2 more
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