scholarly journals Dataset on the agronomic characteristics and combining ability of new parental lines in the two-line hybrid rice systems in Vietnam

Data in Brief ◽  
2021 ◽  
pp. 107069
Author(s):  
Quang Van Tran ◽  
Long Thien Tran ◽  
Dung Thi Kim Nguyen ◽  
Linh Hong Ta ◽  
Loc Van Nguyen ◽  
...  
Keyword(s):  
Combining Ability ◽  
Hybrid Rice ◽  
Agronomic Characteristics ◽  
Parental Lines

scholarly journals Combining ability, floral biology, and seed producibility of promising cytoplasmic male-sterile (CMS) lines for hybrid rice development

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Victoriano V. Casco ◽  
Rosemarie T. Tapic ◽  
Jerwin R. Undan ◽  
Anna Ma. Lourdes S. Latonio ◽  
Roel R. Suralta ◽  
...  
Keyword(s):  
Combining Ability ◽  
Hybrid Rice ◽  
Floral Biology ◽  
Outcrossing Rate ◽  
Floral Traits ◽  
Male Sterile ◽  
Ability Test ◽  
Cytoplasmic Male Sterile ◽  
Combining Abilities ◽  
Parental Lines

Abstract Background A combining ability analysis is a useful tool of plant breeders in screening and identifying promising parental lines with high potential for developing competitive rice hybrids. Also, one important factor that strongly determines the suitability of commercial utilization of hybrid rice parental lines is their extent of seed producibility. Methods In this study, the combining ability, floral biology and seed producibility of cytoplasmic male sterile (CMS) lines were investigated to identify good combiners with good seed production potential. The Line × Tester analysis was used to determine the general combining abilities (GCA) of hybrid rice parental lines, and Specific Combining Abilities (SCA) of the different hybrid combinations. A correlation analysis was also done to determine floral traits that influence the outcrossing rate of the CMS lines. There were 4 CMS lines, 6 restorer lines, 24 hybrid combinations and 1 check variety in a randomized complete block Design (RCBD) with 3 replicates. Results Results indicated that CMS lines IR79128B and IR102758B were good combiners and the most promising restorer lines were D2031-7-1-2R, Hanareumbyeo 2, and XTR036-54-10R. Based on specific combining ability test, the most promising combination was entry 10 (IR58025A/D2013-7-1-2R). It has the highest yield of 7496 kg ha−1, a high positive SCA score of 570.54, and highest standard heterosis of 12.9%. Based on floral traits, IR79128B was the most promising with a high positive GCA score of 186.93, panicle exertion rate of 74.8%, and a high outcrossing rate of 51%. There was a significant positive association between outcrossing rate, duration of floral opening, panicle exertion rate, and general combining ability. Conclusion The floral traits found to be significantly associated with outcrossing rate are useful selection criteria not only for identifying economically usable CMS lines but also for developing new and promising parental lines and hybrids. These CMS lines do not only give heterotic combinations but are also commercially producible, the two most important factors to the success of any hybrid rice breeding program.

scholarly journals Combining Ability and Gene Action for Yield Characteristics in Novel Aromatic Cytoplasmic Male Sterile Hybrid Rice under Water-Stress Conditions

Agriculture ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 226
Author(s):  
Hamdi F. El-Mowafi ◽  
Muneera D. F. AlKahtani ◽  
Rizk M. Abdallah ◽  
Amr M. Reda ◽  
Kotb A. Attia ◽  
...  
Keyword(s):  
Water Stress ◽  
Combining Ability ◽  
Hybrid Rice ◽  
Yield Component ◽  
Stress Conditions ◽  
Male Sterile ◽  
Genetic Components ◽  
Component Traits ◽  
Parental Lines ◽  
Yield Component Traits

Hybrid rice parental lines with better combining abilities provide an efficient tool to increase rice production. In the current study, twenty hybrid combinations were generated from five aromatic cytoplasmic male sterile (CMS) lines and four restorer lines (three of them aromatic) using a line × tester mating design. The hybrids and their parental lines were evaluated under two water regimes: normal irrigation and water-stress. Ten yield-component traits were studied over a period of 2 years, and the significant differences between the parents and hybrids are reported in this investigation. Overall, all yield component traits were significantly affected by the water deficit and were governed by both additive and non-additive gene actions. More specifically, the grain yield (GY) was mainly controlled by non-additive gene action under both normal and water-stress conditions. The contribution of the additive variance (σ2 A) was more prominent in the genetic components of traits as compared to the dominance variance (σ2 D). The aromatic parental line CMS IR58025A and the restorer line PR2 were recorded as the best combiners for the GY and good combiners for many other characteristics under both growth conditions. The cross combinations Pusa12A/IR25571-31R and Pusa12A/Giza-Basmati-201 revealed significantly positive specific combining ability (SCA) effects for the GY under both normal and water-stress conditions. The inconsistent correlation between the general combining ability (GCA) and SCA manifested complex interactions among the positive and negative alleles of the genes controlling the yield traits. Generally, the findings of this investigation demonstrated the importance of the GCA and SCA for understanding the genetic components and gene actions of the yield characteristics in new aromatic hybrid rice parental lines. Therefore, we recommend considering these findings in the selection of elite parents for developing superior aromatic hybrid rice varieties under water-stress conditions.

Heritability and Genetic Advance Estimation From Parental Lines of Hybrid Rice

2012 ◽  
Vol 3 (7) ◽  
pp. 11-13
Author(s):  
Arpita Shrivastava ◽  
◽  
D. K. Mishra D. K. Mishra ◽  
G. K. Koutu G. K. Koutu ◽  
S. K. Singh S. K. Singh
Keyword(s):  
Hybrid Rice ◽  
Genetic Advance ◽  
Parental Lines

Combining ability and heterosis studies across environments in linseed (Linum usitatissimum L.)

2011 ◽  
Vol 59 (1) ◽  
pp. 87-102 ◽  
Author(s):  
S. Sood ◽  
N. Kalia ◽  
S. Bhateria
Keyword(s):  
Seed Yield ◽  
Linum Usitatissimum ◽  
Combining Ability ◽  
Yield Components ◽  
Block Design ◽  
Linum Usitatissimum L ◽  
Randomized Block Design ◽  
Component Traits ◽  
Parental Lines ◽  
Fibre Yield

Combining ability and heterosis were calculated for fourteen lines of linseed in a line × tester mating design using twelve lines and two diverse testers in two different environments. The hybrids and parental lines were raised in a completely randomized block design with three replications to investigate seed and fibre yield and their component traits. Genetic variation was significant for most of the traits over environments. Combining ability studies revealed that the lines KL-221 and LCK-9826 were good general combiners for seed yield and most of its components, whereas LMH-62 and LC-2323 were good general combiners for yield components only. Moreover, KL-221 was also a good general combiner for fibre yield. Similarly, B-509 and Ariane were good general combiners for fibre yield and most of its components. Among the specific cross combinations, B-509 × Flak-1 was outstanding for seed yield per plant and B-509 × KL-187 and LC-2323 × LCK-9826 for fibre yield per plant, with high SCA effects. In general, the hybrids excelled their respective parents and the standard checks for most of the characters studied. Based on the comparison of mean performance, SCA effects and the extent of heterosis, the hybrids LC-2323 × LCK-9826 and B-509 × KL-221 appeared to be the most promising for both seed and fibre yield. Other promising combinations were LC-2323 × KL-210 and B-509 × Ariane for seed and fibre yield, respectively. The superiority of LC-2323, LCK-9826, KL-221, B-509 and Ariane as good general combiners was further confirmed by the involvement of these parents in the desirable cross combinations.

Combining Ability Analysis of Agronomic Trait in Indica×Indica Hybrid Rice

2017 ◽  
Vol 43 (10) ◽  
pp. 1448
Author(s):  
Zheng ZHANG ◽  
Xue-Li ZHANG ◽  
Bo-Cheng MO ◽  
Zhi-Jun DAI ◽  
Zhong-Li HU ◽  
...  
Keyword(s):  
Combining Ability ◽  
Hybrid Rice ◽  
Agronomic Trait ◽  
Combining Ability Analysis ◽  
Indica Hybrid Rice

Analysis of heterosis, combining ability and heritability of cadmium content in brown rice of tri-line indica hybrid rice

2011 ◽  
Vol 19 (3) ◽  
pp. 668-671
Author(s):  
Ying-Jiang CAO ◽  
Shu-Mei YOU ◽  
Kai-Feng JIANG ◽  
Li YANG ◽  
Qian-Hua YANG ◽  
...  
Keyword(s):  
Combining Ability ◽  
Hybrid Rice ◽  
Brown Rice ◽  
Cadmium Content ◽  
Indica Hybrid Rice

scholarly journals Studies on Physio-chemical Properties of Maintainer, Restorer Lines and Hybrids of Chilies (Capsicum annuum L.)

2020 ◽  
pp. 122-138
Author(s):  
Maneechat Nikornpun ◽  
K. Tunjai ◽  
K. Kaewsombat ◽  
T. Tarinta ◽  
Danai Boonyakiat
Keyword(s):  
Vitamin C ◽  
Capsicum Annuum ◽  
Combining Ability ◽  
Chemical Properties ◽  
General Combining Ability ◽  
The Other ◽  
Capsicum Annuum L ◽  
Combining Abilities ◽  
Parental Lines ◽  
Better Than

Physio-chemical properties of hybrid chilies (Capsicum annuum L.), parental lines and commercial varieties were evaluated in three experiments and showed significant differences among them. Heterosis, and heterobeltiosis were studied in hybrids while, combining abilities were investigated in maintainers and restorers. Positive statistical differences in the general combining ability of the maintainer lines for vitamin C, capsaicin and Hue were observed and general combining ability indicated that, CA1286 and CA1303, were good maintainers for the improvement of capsaicin and vitamin C. The other maintainers;-, CA1441 and CA1442, are good for the improvement of L* and Chroma. The maintainer, CA1441, was better than CA1442 for capsaicin content,- while the maintainer, CA1442, was better than CA1441 for vitamin C. Positivity and statistically significant differences among the restorers were  observed  for vitamin C, capsaicin, Hue and Chroma  and  the lines;-, CA 1447, CA 1448, CA 1449, CA 1450 and CA 1451, were useful for the improvement of these  physio-chemical properties of chilies. 

scholarly journals DNA Fingerprinting and Diversity Analysis of BRRI Hybrid Varieties and their Corresponding Parents

2011 ◽  
Vol 21 (2) ◽  
pp. 189-198
Author(s):  
M.M. Islam ◽  
M.E. Hoque ◽  
S.M.H.A. Rabbi ◽  
M.S. Ali
Keyword(s):  
Microsatellite Markers ◽  
Dna Fingerprinting ◽  
Hybrid Rice ◽  
Similarity Coefficient ◽  
Diversity Analysis ◽  
Allele Number ◽  
Information Contents ◽  
Polymorphic Bands ◽  
Parental Lines ◽  
Genetic Closeness

DNA fingerprinting and genetic diversity of four Bangladesh Rice Research Institute (BRRI) hybrid varieties and their parental lines were carried out. A total of 73 microsatellite markers were tested for screening the genotypes. Among the 73 amplified products, 37% had polymorphic bands showing 81 alleles. The number of alleles per locus ranged from two (RM10) to eight (RM327), where average allele number was 4.333. The Polymorphism Information Contents (PIC) lied between 0.337 (RM10) and 0.852 (RM327). RM327 was the most robust marker providing the highest PIC value (0.852). Pair-wise genetic dissimilarity coefficient interaction showed that BRRI hybrids two was the most genetically distant from each other whereas BRRI hybrids one, three, four and their respective parents were very close. Cluster analysis based on Dice’s similarity coefficient UPGMA system grouped BRRI hybrid and their parental lines into four major clusters at 0.41 cut off similarity coefficient. Four BRRI hybrid varieties grouped into four distinct clusters along with their component lines indicating their genetic closeness. Key words: Hybrid rice, Diversity analysis, Microsatellite markers, DNA fingerprinting   D. O. I. 10.3329/ptcb.v21i2.10242   Plant Tissue Cult. & Biotech. 21(2): 189-198, 2011 (December)

Sign in / Sign up

Export Citation Format

Share Document