Results 41 to 50 of about 3,665 (278)

Effects of the number of pollen grains on cold tolerance at the booting stage in rice lines with QTLs for cold tolerance

open access: yesPlant Production Science, 2017
This study was conducted to clarify the relationship between the number of pollen grains per anther and spikelet fertility under low temperature conditions in the rice cultivars and lines including lines with quantitative trait loci (QTL) for cold ...
Akira Fukushima   +5 more
doaj   +1 more source

Effects of Heat Stress at Vegetative and Reproductive Stages on Spikelet Fertility

open access: yesRice Science, 2018
Seed-setting rate, yield components and grain quality traits of 169 accessions from an exotic rice germplasm were tested under high temperatures from 40 °C to 45 °C for 6 h during the daytime at the vegetative and reproductive stages, respectively. The results showed that heat stress significantly decreased the seed-setting rate of all the accessions ...
Sulaiman Cheabu   +4 more
openaire   +2 more sources

Identification of QTL linked to heat tolerance in rice (Oryza sativa L.) using SSR markers through bulked segregant analysis

open access: yesElectronic Journal of Plant Breeding, 2021
Identification of loci and linked markers enable the marker-assisted selection for transferring the reproductive phase heat tolerance in rice. Microsatellite marker-based bulked segregant analysis (BSA) for heat tolerance was performed in F3 progenies of
Swapnil Gorakh Waghmare1,5*, P. Sindhumole2,4, Deepu Mathew1, M. R. Shylaja1, Rose Mary Francies3, P. S. Abida4 and M. C. Narayanankutty4
doaj   +1 more source

Molecular and genetic pathways for optimizing spikelet development and grain yield [PDF]

open access: yes, 2020
The spikelet is a unique structure of inflorescence in grasses that generates one to many flowers depending on its determinate or indeterminate meristem activity. The growth patterns and number of spikelets, furthermore, define inflorescence architecture
Yuan, Zheng   +2 more
core   +1 more source

Genetic parameters of variability, correlation and path-coefficient for grain yield and physiological traits in rice (Oryza sativa L.) under shallow lowland situation [PDF]

open access: yesElectronic Journal of Plant Breeding, 2010
Studies on genetic variability, character association and path-coefficient analysis were conducted on forty seven (47) ricegenotypes including thirty three hybrids and fourteen parents for grain yield and some physiological traits.
Jayasudha S and Deepak Sharma
doaj  

Agronomic Performance of F1 Hybrids of Rice (Oryza sativa L.) in Japonica-Indica Crosses

open access: yesPlant Production Science, 2002
Generally F1 hybrids from crosses between japonica and indica rice show variable degrees of sterility. Previous studies revealed that among the indica rice, the Aus type has sexual affinity with japonica cultivars giving higher fertility in F1 hybrids ...
Seiichi Murayama   +1 more
doaj   +1 more source

Identification of novel QTLs for grain fertility and associated traits to decipher poor grain filling of basal spikelets in dense panicle rice

open access: yesScientific Reports, 2021
High grain number is positively correlated with grain yield in rice, but it is compromised because of poor filling of basal spikelets in dense panicle bearing numerous spikelets. The phenomenon that turns the basal spikelets of compact panicle sterile in
Sudhanshu Sekhar   +7 more
doaj   +1 more source

Six-rowed spike4 (Vrs4) controls spikelet determinacy and row-type in barley [PDF]

open access: yes, 2013
Inflorescence architecture of barley (Hordeum vulgare L.) is common among the Triticeae species, which bear one to three single-flowered spikelets at each rachis internode. Triple spikelet meristem is one of the unique features of barley spikes, in which
Ariyadasa, R   +14 more
core   +1 more source

Pollen fertility Vs Spikelet fertility in F2 of a CMS based hybrids in rice (Oryza sativa L.) under Aerobic condition [PDF]

open access: yesElectronic Journal of Plant Breeding, 2010
Identification of maintainer and restorers from rice germplasm through test crossing is the initial step in three line heterosisbreeding. Maintainer lines can be converted into cytoplasmic male sterile lines to utilize in development of rice hybrids ...
N.Naresh Babu,N.Shivakumar and Shailaja Hittalmani
doaj  

At Home Detection of Ovarian Health Biomarker in Menstruation Blood

open access: yesAdvanced Materials Technologies, EarlyView.
A lateral flow assay enables the detection of anti‐Müllerian hormone directly in unprocessed menstrual blood using silica‐gold nanoshells and smartphone‐assisted machine learning analysis. The platform supports decentralized, user‐operated testing in wearable and dipstick formats, highlighting the potential of menstrual blood as a non‐invasive matrix ...
Lucas Dosnon   +3 more
wiley   +1 more source

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