نتایج جستجو برای: emasculation

تعداد نتایج: 123  

Journal: :Religions 2023

This article explores the motivations behind adherents to Christian nationalism using several inter-related psychoanalytic theoretical lenses. Following a description of nationalist beliefs, four conscious for joining will be outlined first, including recruitment tactics/evangelization that fulfill need belonging and sense sacred purpose, fear loss white social status, patriarchal authority hie...

Journal: :پژوهش های تولید گیاهی 0
اسماعیل سیفی دانشگاه علوم کشاورزی و منابع طبیعی گرگان سونا حسین آوا موسسه تحقیقات اصلاح و تهیه نهال و بذر کرج

one of the problems in growing olive trees is pollen-incompatibility. this study was conducted in gorgan climatic condition to determine the self-incompatibility of olive cv koroneiki and to select the suitable pollenizers. randomized complete block design with three replication (trees) and six treatments including open pollination, self pollination, mission, conservalia, sevilana and valanolia...

Journal: :American journal of botany 2002
Shuang-Quan Huang Yoshitaka Takahashi Amots Dafni

Flower stalks of Pulsatilla cernua, an early spring herb in north temperate Asia, changed position from erect to pendulous and back to erect during 6-10 d anthesis. We tested three possible explanations for this movement. Our results showed that (1) this movement is unlikely to be a mechanism to attract pollinators or enhance pollen output, because no pollinator preference was observed between ...

2014
Fan Wang Feng-Jiao Zhang Fa-Di Chen Wei-Min Fang Nian-Jun Teng

There has been a heated argument over self-incompatibilityof chrysanthemum (Chrysanthemum morifolium) among chrysanthemum breeders. In order to solve the argument, we investigated pistil receptivity, seed set, and compatible index of 24 chrysanthemum cultivars. It was found that the 24 cultivars averagely had 3.7-36.3 pollen grains germinating on stigmas at 24 hours after self-pollination throu...

Journal: :Plant physiology 1998
L Gómez-Gómez P Carrasco

Two genes coding for S-adenosyl-l-methionine synthase (SAMS, EC 2.5. 1.6) were previously isolated from pea (Pisum sativum) ovaries. Both SAMS genes were highly homologous throughout their coding regions but showed a certain degree of sequence divergence within the 5' and the 3' untranslated regions. These regions have been used as gene-specific probes to analyze the differential expression of ...

2016
Boris Krška Peter Langridge

The aim of the apricot-breeding program in the Horticultural Faculty in Lednice, that has been developed since 1981, is to obtain new adaptable cultivars, which combine most of the valuable biological traits. Standard breeding techniques, such as crossing by emasculation and hand pollination, self-pollination and open pollination, were employed. A total of 1.154 crossings were produced from mor...

Journal: :American journal of botany 2001
Nathalie Escaravage Elisabeth Flubacker André Pornon Bernard Doche Irène Till-Bottraud

The function of stamen dimorphism in the breeding system of the alpine shrub Rhododendron ferrugineum was studied in two populations in the French Alps. This species has pentameric flowers with two whorls of stamens: an inner whorl of five long stamens and an outer whorl of short stamens. We studied the development of stamens from buds to mature flowers (measurement of the filament, anther, and...

2012
K. R. Gedye J. L. Gonzalez-Hernandez V. Owens A. Boe

Prairie cordgrass (Spartina pectinata Bosc ex Link) is an indigenous, perennial grass of North America that is being developed into a cellulosic biomass crop suitable for biofuel production. Limited research has been performed into the breeding of prairie cordgrass; this research details an initial investigation into the development of a breeding program for this species. Genomic libraries enri...

Journal: :American journal of botany 2007
Ian A Zelaya Micheal D K Owen Mark J Vangessel

Transfer of herbicide resistance genes between crops and weeds is relatively well documented; however, far less information exists for weed-to-weed interactions. The hybridization between the weedy diploids Conyza canadensis (2n = 18) and C. ramosissima (2n = 18) was investigated by monitoring transmission of the allele conferring resistance to N-phosphonomethyl glycine (glyphosate). In a multi...

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