نتایج جستجو برای: cross pollination

تعداد نتایج: 496217  

Journal: :The Journal of Agriculture of the University of Puerto Rico 1969

2014

This study explored the morphological characteristics and effects of pollination methods on fruit set and characteristics in 4 red pitaya (Hylocereus spp.) clones. The distinctive morphological recognition and classification among pitaya clones were confirmed by the stem, flower and fruit features. The fruit production season was indicated from the beginning of May to the end of August – the be...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2014
Carolyn A Wessinger Lena C Hileman Mark D Rausher

Distinct floral pollination syndromes have emerged multiple times during the diversification of flowering plants. For example, in western North America, a hummingbird pollination syndrome has evolved more than 100 times, generally from within insect-pollinated lineages. The hummingbird syndrome is characterized by a suite of floral traits that attracts and facilitates pollen movement by humming...

2017
Ling-Na Chen Yong-Zhong Cui Khoon-Meng Wong De-Zhu Li Han-Qi Yang

An understanding of the breeding systems and pollination of agriculturally important plants is critical to germplasm improvement. Breeding system characteristics greatly influence the amount and spatial distribution of genetic variation within and amongst populations and influence the rarity and extinction vulnerability of plant species. Many woody bamboos have a long vegetative period (20-150 ...

Journal: :Jurnal Agro 2021

Tanaman ciplukan digunakan untuk menghasilkan buah segar, bahan baku nutraceutical, dan biofarmasi. Kapasitas genetik dapat ditingkatkan dengan hibridisasi interspesifik. Ketidakcocokan adalah masalah yang muncul pada persilangan antarspesies. Tujuan penelitian mempelajari keberhasilan kompatibilitas penyerbukan sendiri silang interspesifik ciplukan. Penelitian dilaksanakan di Seed and Nursery ...

2016
Kamuela E. Yong E. Yong Yi Li

California’s almond industry, valued at $2.3 billion per year, depends on the pollinator services of honey bees, although pollination by other insects, mainly solitary wild bees, is being investigated as an alternative because of recent declines in the number of honey bee colonies. Our objective is to model the movements of honey bees and determine the conditions under which they will forage in...

2014
Marina Wolowski Tia-Lynn Ashman Leandro Freitas

Despite the extensive knowledge of pollen limitation in angiosperms, its assessment within tropical forests is still limited. Especially lacking are large scale comparisons of species within this biome - one that is highly diverse but also becoming increasingly threatened. In fact, many tropical plant species depend upon pollinators for reproduction but evaluation of the impact of this dependen...

Journal: :Environmental biosafety research 2006
Kai Lipsius Ralf Wilhelm Otto Richter Klaus Jürgen Schmalstieg Joachim Schiemann

Modeling pollen dispersal to predict cross-pollination is of great importance for the ongoing discussion of adventitious presence of genetically modified material in food and feed. Two different modeling approaches for pollen dispersal were used to simulate two years of data for the rate of cross-pollination of non-GM maize (Zea mays (L.)) fields by pollen from a central 1 ha transgenic field. ...

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