Results 171 to 180 of about 1,948,094 (196)

Identification of Indica rice chromosome segments for the improvement of Japonica inbreds and hybrids

Theoretical and Applied Genetics, 2012
Exploitation of heterosis has brought significant advance in plant breeding and agricultural production, although its genetic basis is still poorly understood. In this study, a total of 66 chromosome segment substitution (CSS) lines, derived from a cross between japonica rice inbred line Asominori (as the recurrent parent) and indica rice inbred line ...
Zhiquan, Wang, Chuanyuan, Yu, Xi, Liu, Shijia, Liu, Changbin, Yin, Linglong, Liu, Jianguo, Lei, Ling, Jiang, Chao, Yang, Liangming, Chen, Huqu, Zhai, Jianmin, Wan   +11 more
openaire   +2 more sources

Anther culture of tropical japonica × indica hybrids of rice (Oryza sativa L.) [PDF]

Euphytica, 1992
Nine japonica × indica F1 hybrids of rice involving 6 indica and 3 japonica tropical varieties, were large scale anther cultured. The frequency of callusing anthers averaged 18.7%. The microspore-derived calli produced green plants with a mean frequency of 8.7%. Albino plants represented 61% of the shoot forming calli.
Guiderdoni, Emmanuel, Galinato, E., Luistro, J., Vergara, G.   +3 more
openaire   +1 more source

Response of Japonica and Indica Hybrid cultures of Rice to Nitrogen Manuring

Madras Agricultural Journal, 1962
The results of an experiment laid out to study the differential behaviour of three promising cultures of rice in comparison with their indica parent during 1901- 1962 main season in the Agricultural College wet lands are presented in this paper.
CHAMI A, MARIAKULANDAI A
openaire   +1 more source

Molecularmarker diversity and hybrid sterility in indica-japonica rice crosses

Theoretical and Applied Genetics, 1997
The partial sterility of hybrids between the indica and japonica rice subspecies of Asian cultivated rice is a serious constraint for utilizing inter-subspecific heterosis in hybrid rice breeding. In this study, we have investigated the relationship between molecular-marker polymorphism and indica-japonica hybrid fertility using a diallel set involving
Q. Zhang, K. D. Liu, G. P. Yang, M. A. Saghai Maroof, C. G. Xu, Z. Q. Zhou   +5 more
openaire   +1 more source

Genetic Analysis on Plant Type of Northern Japonica Hybrid Rice

Agricultural Sciences in China, 2008
Abstract This study was designed to analyze the genetic relationship of the morphological traits of the northern japonica hybrid rice. The genetic relationship of the morphological traits of the 100 cultivars combined by the 10 sterile lines and the 10 restore lines was studied by using the principle component analysis and the SAS and QGA.
MA Xiu-fang, HUA Ze-tian, HAO Xian-bin, SHEN Feng   +3 more
exaly   +2 more sources

Improving Parental Lines for Hybrid Rice Development in Indica / Japonica Rice Crosses

Journal of Agricultural Chemistry and Biotechnology, 2019
The present study was done at the Experimental Farm of Sakha Agricultural Research Station, Kafr El-Sheikh, Egypt, during 2016 and 2017 seasons to study combining ability, gene action and heterosis for grain yield and some agronomic traits in some lines to be utilized in hybrid rice development.
openaire   +1 more source

The contribution of intersubspecific hybridization to the breeding of super-high-yielding japonica rice in northeast China

Theoretical and Applied Genetics, 2012
Hybridization between indica and japonica rice combined with utilization of ideal plant type has led to the development of high-yielding japonica rice in northern China. However, the contribution at the genomic level of intersubspecific hybridization to the increased yield of northern Chinese japonica rice is uncertain.
Jian, Sun, Di, Liu, Jia-Yu, Wang, Dian-Rong, Ma, Liang, Tang, Hong, Gao, Zheng-Jin, Xu, Wen-Fu, Chen   +7 more
openaire   +2 more sources

Relationship of Parental Indica-Japonica Indexes With Yield and Grain Quality Traits of Japonica Hybrid Rice in Northern China

Rice Science, 2010
Abstract Taking the main parents (10 male sterile lines and 10 restorer lines) and their 100 combinations of japonica hybrid rice in northern China as materials, the relationships of parental indica-japonica indexes determined by the methods of the Cheng's index as well as simple sequence repeat (SSR) markers with yield and grain quality traits of ...
Yan-rong WANG, Fu-lin QIU, Ze-tian HUA, Gui-jin DAI   +3 more
exaly   +2 more sources

Stacking S5-n and f5-n to overcome sterility in indica–japonica hybrid rice

Theoretical and Applied Genetics, 2015
Pyramiding of S5 - n and f5 - n cumulatively improved seed-setting rate of indica-japonica hybrids, which provided an effective approach for utilization of inter-subspecific heterosis in rice breeding. Breeding for indica-japonica hybrid rice is an attractive approach to increase rice yield.
Jiaming, Mi, Guangwei, Li, Jianyan, Huang, Huihui, Yu, Fasong, Zhou, Qifa, Zhang, Yidan, Ouyang, Tongmin, Mou   +7 more
openaire   +2 more sources

A genetic analysis of low‐temperature‐sensitive sterility in indica‐japonica rice hybrids

Plant Breeding, 1996
AbstractLow‐temperature‐sensitive sterility has become one of the major obstacles in indica–japonica hybrid rice breeding. The objectives of this paper were to evaluate the extent of the fertility reduction and to determine the genetic basis of low‐temperature‐sensitive sterility.
H. B. Li, Q. Zhang, A. M. Liu, J. S. Zou, Z. M. Chen   +4 more
openaire   +1 more source