Results 51 to 60 of about 1,397 (172)

Growth and Survival Rate after Maturity in Oryza sativa L. and O. glaberrima Steud.

Japanese Journal of Crop Science, 1999
Ten cultivars of O. sativa (6 japonica, 2 indica, and 2 japonica×indika) and five cultivars of O. glaberrima were grown in pots. Half of each cultivar was cut at 10 cm above the ground at maturity, and the other half remained uncut. Both were grown under two different day-length conditions with a suitbable temperature. The growth state at maturity, the
SAKAGAMI, Jun-ichi, ISODA, Akihiro, NOJIMA, Hiroshi, TAKASAKI, Yasuo   +3 more
openaire   +2 more sources

Structural Variations Contribute to Subspeciation and Yield Heterosis in Rice

Plant Biotechnology Journal, EarlyView.
ABSTRACT Yield heterosis has been extensively exploited in hybrid breeding, with intersubspecific hybrids often exhibiting the most pronounced effects. However, developing elite hybrids remains a laborious and time‐consuming process. The genetic basis of heterosis has been debated for over a century, hindered largely by the lack of high‐quality genomes.
Zhiwu Dan, Yunping Chen, Wenchao Huang
wiley   +1 more source

Evaluación de la asociación bacterias fijadoras de nitrógeno - líneas interespecíficas de arroz-nitrógeno, en Typic haplustalf. Ibagué, Colombia Evaluation of the association nitrogen fixing bacterias interspecific - rice lines - nitrogen, in typic haplustalf. Ibagué, Colombia

Acta Agronómica, 2008
El estudio se llevó a cabo en la hacienda Cauchitos, municipio de Ibagué, departamento del Tolima (Norte 4° 23' 51" y Oeste 75° 9' 7", 979 msnm, 24.3°C, bosque seco tropical (bs-T), con el objetivo de evaluar las asociaciones entre bacterias fijadoras de
Margarita M Vallejo, Carmen R Bonilla C, Luis A Castilla   +2 more
doaj  

Molecular Tools to Infer Resistance-Breaking Abilities of Rice Yellow Mottle Virus Isolates

Viruses, 2023
Rice yellow mottle virus (RYMV) is a major biotic constraint to rice cultivation in Africa. RYMV shows a high genetic diversity. Viral lineages were defined according to the coat protein (CP) phylogeny.
Laurence Dossou, Agnès Pinel-Galzi, Jamel Aribi, Nils Poulicard, Laurence Albar, Sorho Fatogoma, Marie Noëlle Ndjiondjop, Daouda Koné, Eugénie Hébrard   +8 more
doaj   +1 more source

Rice EMF3 Alleles Adjust Flower Opening Time to Enhance the Seed Setting Rate Under High Temperature Stress

Plant Biotechnology Journal, EarlyView.
ABSTRACT To safeguard global food security against rapid population growth and a warming world, the effective genetic improvement of cereals is imperative. Flower opening time (FOT) critically affects the seed setting rate. In this study, we identified a gene, EARLY‐MORNING FLOWERING 3 (EMF3), in which single‐nucleotide substitutions strongly modulate ...
Takuma Ishizaki, Yoichi Hashida, Hideyuki Hirabayashi, Kazuhiro Sasaki, Hiroki Tokunaga, Eliza Vie M. Simon‐Ada, Masataka Wakayama, Toshiyuki Takai, Hiroki Saito, Atsushi J. Nagano, Hitoshi Sakakibara, Mikiko Kojima, Yumiko Takebayashi, Sung‐Ryul Kim, Ryo Matsushima, Michael J. Thomson, Kazuhiko Sugimoto, Ken‐Ichiro Hibara, Tsutomu Ishimaru   +18 more
wiley   +1 more source

A Repertoire of Major Genes From Crop Wild Relatives for Breeding Disease‐Resistant Wheat, Rice, Maize, Soybean and Cotton Crops

Plant Breeding, EarlyView.
ABSTRACT Global food demand is predicted to rise anywhere from 59% to 98% by 2050 because of increasing population. However, the continued depletion of natural resources and increasing biotic and abiotic stresses will continue to pose significant threats to global food security in coming years.
Memoona Khalid, Hafiz Mamoon Rehman, Tsz‐Yan Cheung, Shakeel Ahmed, Ting Fung Chan, Hon‐Ming Lam   +5 more
wiley   +1 more source

Robustness and strategies of adaptation among farmer varieties of African Rice (Oryza glaberrima) and Asian Rice (Oryza sativa) across West Africa.

PLoS ONE, 2013
This study offers evidence of the robustness of farmer rice varieties (Oryza glaberrima and O. sativa) in West Africa. Our experiments in five West African countries showed that farmer varieties were tolerant of sub-optimal conditions, but employed a ...
Alfred Mokuwa, Edwin Nuijten, Florent Okry, Béla Teeken, Harro Maat, Paul Richards, Paul C Struik   +6 more
doaj   +1 more source

Challenges in Bringing Pangenome Research Into Breeding: A Case Study in Rice

Plant Biotechnology Journal, Volume 24, Issue 6, Page 3679-3690, June 2026.
ABSTRACT Crop breeding has entered the pangenomics era, unlocking a far more comprehensive view of genetic diversity than a single reference genome can capture. In rice (Oryza sativa), a staple crop critical to global food security, the construction of pangenome resources has uncovered extensive structural variations (SVs), presence/absence variations (
Shuai Nie, Fangping Li, Risheng Li, Jian Wang, Yamei Ma, Chon Kit Kenneth Chan, Junliang Zhao, Haifei Hu   +7 more
wiley   +1 more source

Phosphorus Response ofOryza sativa, O. glaberrima, and Hybrid Rice Cultivars on an Ultisol [PDF]

Communications in Soil Science and Plant Analysis, 2010
Phosphorus (P) deficiency is a major constraint to upland rice production on Ultisols in the humid zone of West Africa. Integrated use of P-efficient cultivars and P nutrition is needed for enhanced sustainable productivity on these soils. This article reports on the P responsiveness of interspecific rice hybrids (crosses from Oryza sativa and O ...
Sahrawat, K L, Jones, M P, Diatta, S, Sika, M   +3 more
openaire   +2 more sources

Molecular Control of Tiller Angle and Its Role in Rice Domestication

Food and Energy Security, Volume 15, Issue 3, May/June 2026.
ABSTRACT Plant architecture is a key determinant of rice (Oryza sativa) productivity, with tiller angle playing a central role in optimizing plant density, light interception, and yield. During domestication, rice underwent a critical transition from the prostrate growth habit of wild relatives such as Oryza rufipogon to the erect architecture of ...
Humera Ashraf, Muhammad Zahid Ashraf, Sawaira Ashraf, Sajid Shokat, Yuliang Li   +4 more
wiley   +1 more source