Results 91 to 100 of about 133,931 (175)

ALOGAMIA EM ARROZ (Oryza sativa L.) E RELAÇÃO COM CARACTERÍSTICAS AGRONÔMICAS RICE (Oryza sativa L.) ALLOGAMY AND RELATIONSHIP WITH AGRONOMIC TRAITS

open access: yesPesquisa Agropecuária Tropical, 2007
<!-- @page { margin: 2cm } --> <p class="western" align="justify"><span style="font-family: Times New Roman,serif;"><span style="font-size: small;">A produção de sementes híbridas de arroz, utilizando a técnica chinesa, requer uma
Péricles de Carvalho Ferreira Neves   +1 more
doaj   +1 more source

Intraspecific variation in Erica coccinea [PDF]

open access: yes, 2013
The genus Erica is the most specious in the Cape Floristic Region, with a large range of habitats, pollination syndromes and fire survival strategies.
Malan, Michelle
core  

Genetic factors associated with mating system cause a partial reproductive barrier between two parapatric species of Leavenworthia (Brassicaceae) [PDF]

open access: yes, 2010
This is the publisher's version. It can also be found here: http://www.amjbot.org/content/97/3/412Reproductive barriers play a major role in the origin and maintenance of biodiversity by restricting gene flow between species.
Koelling, Vanessa A., Mauricio, Rodney
core   +1 more source

Quantitative assessment of kernel set and risk of out-crossing in maize based on flowering dynamics [PDF]

open access: yes, 2004
Pollination in maize can occur only if airborne pollen shed by the staminate flowers on the tassel is captured by the stigmas of the pistillate flowers borne on the ear.
Fonseca, Agustin Ezequiel
core   +3 more sources

Influence of Environment and Flower Maturity on Hybrid Seed Production of Exserted Stigma Tomatoes Crossed without Emasculation1

open access: yesJournal of the American Society for Horticultural Science, 1980
Abstract Two inbreds of tomato ( Lycopersicon esculentum Mill.) with exserted stigmas, one without and the other with positional sterility (ps) , were crossed without emasculation, at 3 stages of maturity under 3 environmental ...
J. W. Scott, William L. George
openaire   +1 more source

Effect of high temperature and water stress on pollen germination and spikelet fertility in rice [PDF]

open access: yes, 2011
In future climates, rice could more frequently be subjected to simultaneous high temperature and water stress during sensitive developmental stages such as flowering.
Craufurd, P Q   +4 more
core   +1 more source

Floral evolution of long-tubed Erica species [PDF]

open access: yes, 2023
The genus Erica has undergone an extreme radiation in the Cape and exhibits a diversity of pollination syndromes and floral traits. This makes Erica well-suited to study the evolution of floral traits and how they impact speciation.
McCarren, Sam
core   +1 more source

イネのトランスジェニック雄性不稔性を用いた循環選抜育種システム(RSUTMS)の改善のための検出柱頭露出率に関するQTLの検出 [PDF]

open access: yes, 2019
この博士論文は内容の要約のみの公開(または一部非公開)になっています筑波大学 (University of Tsukuba ...
BAKTI CITRA
core   +1 more source

Hybrid Rice Production: A Worldwide Review of Floral Traits and Breeding Technology, with Special Emphasis on China

open access: yesPlants
Rice is an important diet source for the majority of the world’s population, and meeting the growing need for rice requires significant improvements at the production level.
Humera Ashraf   +5 more
doaj   +1 more source

Fine-Mapping of Tomato male sterile-24 Locus and Marker Development for ms-24 and Its Alleles, ms-10, ms-35, and ms-36

open access: yesHorticulturae
Male sterility is an essential trait for minimizing costs and ensuring seed purity in the production of tomato hybrid seeds. However, its application in commercial breeding faces challenges such as instability, low stigma exsertion rates, and the lack of
Li Zhang   +12 more
doaj   +1 more source

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