Results 61 to 70 of about 56,808 (294)

Genomics of Flower Identity in Grapevine (Vitis vinifera L.)

open access: yesFrontiers in Plant Science, 2019
The identity of the four characteristic whorls of typical eudicots, namely, sepals, petals, stamens, and carpels, is specified by the overlapping action of homeotic genes, whose single and combined contributions have been described in detail in the so ...
Fabio Palumbo   +4 more
doaj   +1 more source

Is quinoa‐farming sustainable in marginal environments? Social, economical and environmental aspects

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract Quinoa (Chenopodium quinoa Willd.) is an Andean grain crop introduced as a novel crop to many parts of the world in recent years. Recognized for nutritious seeds and high abiotic stress tolerance, it has been promoted as an element of climate‐resilient agriculture, particularly in marginal environments.
Anna Tabea Mengen   +5 more
wiley   +1 more source

Receptor-like Kinase GOM1 Regulates Glume-Opening in Rice

open access: yesPlants
Glume-opening of thermosensitive genic male sterile (TGMS) rice (Oryza sativa L.) lines after anthesis is a serious problem that significantly reduces the yield and quality of hybrid seeds.
Xinhui Zhao   +7 more
doaj   +1 more source

Pollen: ovule ratio and its relationship with other reproductive traits in some Passiflora species (Passifloraceae)

open access: yesAnales del Jardín Botánico de Madrid, 2014
The pollen/ovule (P/O) ratio has been used as predictor of the reproductive system of angiosperms (lowest P/O values correspond to obligate autogamous species while the highest correlate with obligate xenogamous species) but it does not keep for all the ...
María Teresa Amela García   +2 more
doaj   +1 more source

Modelling predicts that heat stress and not drought will limit wheat yield in Europe [PDF]

open access: yes, 2010
Global warming is characterised by shifts in weather patterns and increases in extreme weather events. New crop cultivars with specific physiological traits will therefore be required if climate change is not to result in losses of yield and food ...
Mikhail A. Semenov, Peter R. Shewry
core   +1 more source

Selection for high spike fertility index increases genetic progress in grain yield and stability in bread wheat [PDF]

open access: yes, 2018
Spike fertility index (SF) has been proposed as a promising trait to be used as a selection criterion in wheat breeding programs aimed at increasing grain yield, but no actual evidence of its successful application has been reported.
Alonso, María Pía   +4 more
core   +1 more source

Variation in pollen limitation among reproductive modules points to likely resource reallocation in the alpine plant Veratrum grandiflorum

open access: yesNordic Journal of Botany, EarlyView.
Pollen limitation, a decrease in seed production due to insufficient pollen receipt, may influence plant demography and the evolution of sexual systems. Its empirical estimation of pollen supplementation of some of the flowers on an individual is well known to be prone to overestimation due to potential resource reallocation among the individual's ...
Xia Jiang   +6 more
wiley   +1 more source

Post‐Anthesis Nitrogen Loss from Corn

open access: yesAgronomy Journal, 1993
AbstractPublished research has shown relatively large amounts of NH3 being lost from aboveground vegetation during grain development for various grain crops For corn (Zea mays L.), maximum net N accumulation usually occurs during early reproductive development (R1‐R3) and a subsequent decline is often observed.
D. D. Francis   +2 more
openaire   +3 more sources

Rice cold tolerance at the reproductive stage in a controlled environment Tolerância ao frio do arroz no estádio reprodutivo sob condições controladas

open access: yesScientia Agricola, 2006
Cold tolerance of rice (Oryza sativa L.) during the reproductive stage is important to guarantee high yield under low temperature environments. Field selection, however, does not allow identification of adequate tolerance sources and limits selection of ...
Renata Pereira da Cruz   +2 more
doaj   +1 more source

Pinguicula brendae (Lentibulariaceae) sp. nov., a carnivorous plant from a tropical montane cloud forest in Hidalgo, Mexico

open access: yesNordic Journal of Botany, EarlyView.
A new species of Lentibulariaceae, Pinguicula brendae Rodríguez‐Ramírez, H.Shimai & A.R. Andrés‐Hernández, is described based on its unique morphological characteristics. This species is restricted to limestone rock walls in the San Bartolo Tutotepec municipality, central‐eastern Hidalgo, Mexico, where it inhabits a single locality on vertical, north ...
Ernesto C. Rodríguez‐ Ramírez   +2 more
wiley   +1 more source

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