Assessment and Evaluation of Genetic Diversity of Some Lines Developed From Sakha101 Cv. Of Rice by Using SSR Markers

Hammoud, S. A. A.; El-Malky, Mohamed; Hassan, Heba A.; Sedeek, S. E. M.

doi:10.21608/jacb.2013.53302

Cited by 3 publications

(4 citation statements)

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“…From the reaction of rice varieties to blast, these varieties exhibited a broad spectrum of resistance, thus, they can be considered as resistant sources for transferring the resistance genes from such varieties. All these results are in agreement with those of El-Refaee et al (2011), Hammoud, et al (2013) and El-shafey et al (2015) determined some resistant varieties as a source for blast resistance such Giza 177, Sakha 103 and Sakha 105. R 1 1 1 1 1 2 5 Giza 181 R R 2 3 2 1 1 1 6 Giza 182 R R 1 3 1 1 1 1 7 Egyptian yasmin R R 1 3 1 1 1 1 8 GZ10355-9-1-1-4 R R 1 1 2 1 1 1 9 GZ10355-9-1-1-5 R R 1 2 1 1 2 1 10 GZ10356-4-2-1-4 R R 1 1 1 1 1 1 11 GZ10356-4-3-2-5 R R 1 1 1 1 1 1 12 GZ10364-22-3-1-2 R R 1 1 1 1 1 1 13 GZ10365-2-3-2-3 R R 1 1 1 1 1 1 14 GZ10365-2-4-1-2 R R 1 1 1 1 1 1 15 GZ10365-2-4-1-3 R R 1 1 2 1 1 1 16 GZ6296-12-1-2-1-1 R R 2 2 1 1 1 1 17 GZ6903-1-2-2-1-1 R R 2 1 1 2 1 1…”

Section: Blast Diseasesupporting

confidence: 91%

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YIELD POTENTIAL OF NOVEL RICE GENOTYPES, AND EFFECT OF Trichogramma RELEASE AND BLAST RESISTANCE ON RICE PRODUCTIVITY

El-Habashy¹,

El-Shafey²,

Anis³

et al. 2015

Journal of Plant Protection and Pathology

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Rice is a vital food crop for about one-half of the global population. Unfortunately, it suffers from some biotic and abiotic stresses, which negatively affect the yield potential. Rice plants, in Egypt, are subject to infestation with several insect pests, but the most destructive one is the rice stem borer, Chilo agamemnon Bles. In addition, rice blast remains the most serious disease to manage. Blast resistance has consistently been one of the most important objectives of rice breeders in Egypt. The current investigation was conducted at the experimental farm of Rice Research and Training Center, Sakha Agricultural Research Station during 2014 and 2015 rice seasons. The objectives were to find out the efficiency of Trichogramma release in controlling the rice stem borer compared with insecticide, and to identify some novel resistant and high yielding varieties with high broad spectrum of blast resistance and high level of tolerance to stem borer infestation. Seventeen genotypes were evaluated under both natural and artificial inoculation for blast. Also, yield and yield attributes of these genotypes were estimated. The results revealed that all japonica genotypes were resistant or moderately resistant to the stem borer while indica and indica japonica genotypes were almost susceptible to the stem borer. The release of Trichogramma twice, each at a rate of 30,000 individuals /feddan, the first release was ten days before maximum tillering, and the second one was at 20% flowering. The release of this egg-parasitoid reduced the borer infestation, overall the 17 genotypes, by 78-80% white heads, and was relatively more efficient than the application of the recommended insecticide (Furadan at a rate of 6 kg /feddan). Consequently, Trichogramma, as eco-friendly application, could be used as an alternative management for stem borer than insecticide. Blast nursery evaluation revealed that all japonica GZ lines were highly resistant, as well as high yielding, such as GZ10364-22-3-1-2 and GZ10365-2-4-1-2. Under artificial inoculation with specific and virulent blast races, all genotypes were resistant to all aggressive races except Sakha 101 that was susceptible Till now, the genotypes,

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Section: Blast Diseasesupporting

confidence: 91%

“…The superiority of these varieties in grain yield might be due to their higher number of panicles/plant and their agronomic efficiency. These results were previously obtained by Hassan, et al (2012), Abd El-Hadi, et al (2012), Sedeek, et al (2012) and Hammoud, et al (2013).…”

Section: Mean Performancesupporting

confidence: 88%

YIELD POTENTIAL OF NOVEL RICE GENOTYPES, AND EFFECT OF Trichogramma RELEASE AND BLAST RESISTANCE ON RICE PRODUCTIVITY

El-Habashy¹,

El-Shafey²,

Anis³

et al. 2015

Journal of Plant Protection and Pathology

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“…While, the second one (570Kb) was found in all genotypes except GZ8564-SP70-20-6-1-4; and GZ8564-SP70-20-6-1-5 (lanes; 5 and 6). The marker SSR244 gave two alleles; the first one (300Kb) was found in all genotypes, whereas the second one (250Kb) was found in the lines; GZ8564-SP70-2-6-1-4 and GZ8564-SP70-2-6-1-5 (lanes5 and 6) (Hammoud et al 2013)…”

Section: Investigation On the Effect Of Different Nitrogen Levels Andmentioning

confidence: 98%

“…Molecular marker analysis: Assessment and evaluation of genetic diversity of some lines developed from Sakha101 Cv. of rice by using SSR markers (Hammoud et al 2013). Primer sequences of six SSR markers used are present in Table 1.…”

Section: Figure 1 Diagram For Development Registration Andmentioning

confidence: 99%

Sakha108 Egyptian Rice Variety Japonica Type High Yielding and Resistant to Blast

Hammoud

Aboyessef

Sedeek

et al. 2020

Journal of Plant Production

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Sakha108 was released in 2018 as a high yielding cultivar amended for enhancing rice production in Egypt. Sakha108 was developed from backcrossing between Sakha101 and HR5824-B-3-2-3 to retrieve blast resistance that was broken in wide spread variety Sakha101. The cross between Sakha101 and HR5824-B-3-2-3 was initiated in 2003, F1 then was backcrossed with Sakha101 as to produce F1BC1. This backcross was advanced up to 2008 to enrich the genetic background of the recurrent parent Sakha101 along with blast resistance and reach homozygosity up to F1BC6. Five selected promising sister lines were evaluated in preliminary yield trial (GZ8564-SP70-20-6-1-1, GZ8564-SP70-20-6-1-2, GZ8564-SP70-2-6-1-3, GZ8564-SP70-20-6-1-4 and GZ8564-SP70-20-6-1-5). The promising line GZ8564-SP70-20-6-1-1 surpassed all selected lines and was evaluated from 2010 to 2015 in multi-location yield trials, regional, final and verification yield trials. The results indicated that GZ8564-SP70-2-6-1-1 exceeded yield potential of recurrent parent Sakha101, yet with shorter growth duration and blast resistance. The selected line grain yield recorded 10.75 and 11.00 t/ha during 2015 and 2016 seasons with total duration 137 day, while Sakha101 recorded 10.32 and 10.50 t/ha, respectively with a total growth duration of 145 day. GZ8564-SP70-2-6-1-1 showed high level of blast resistance in the field and artificial inoculation under greenhouse conditions compared with Sakha101 that showed susceptible reaction to rice blast under both field and greenhouse conditions. The application of 165 kg N/ha -1 and wider space (25x20 cm) significantly increased growth, yield attributes and grain yield of the new cultivar Sakha108. The new cultivar exhibited multiple resistance to other important biotic stresses.

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Identification of Drought Tolerant Rice Genotypes Based on Morpho-Physiological and Yield Traits Under Normal and Drought Stress Conditions

Abdel-Aty

El-Abd

Ibrahim

et al. 2022

j biobased mat bioenergy

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Water shortage is a serious climatic factor that drastically limits rice productivity. Thereupon, the development of better adapting rice genotypes under water deficit stress is imperious to maintain rice yield to ensure food security worldwide. The current study focused on genetic variability of morpho-physiological traits of rice to discover relationships between morpho-physiological and yield contributing traits under drought stress conditions in 24 rice genotypes during 2019 and 2020 seasons. Results showed highly significant mean squares of combined analysis for treatments and environment of all studied traits under normal and drought stress conditions. Results reported that the earliest rice cultivars were Giza177 and Giza179; however, the highest yield and its components traits were detected for Giza179, followed by Giza178, Sakha101 and Sakha108 under normal and water deficit conditions; moreover, generally, PCV was higher than GCV for all studied traits. High heritability coupled with high genetic advance was noted for plant height and relative water content under normal and drought conditions, suggesting a preponderance of additive gene action in expressing these traits that could be improved by selection in early segregating generations. While, high heritability coupled with moderate genetic advance was noticed for duration, grain yield/plant and harvest index under both conditions. Giza179 and Giza178 showed the best values for drought tolerance and were produced from same genetic background. Moreover, grain yield/plant showed a highly significantly positive correlated with panicle length, number of panicles/plant, panicle weight and 100-grain weight under normal and water deficit conditions; moreover, these traits were the main components of grain yield, so any selection based on these traits may lead to enhancement in grain yield. As a result, Giza178 and Giza179 varieties can be introduced as donors in breeding programs to tolerate water shortages to improve morphological and yield characteristics.

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Assessment and Evaluation of Genetic Diversity of Some Lines Developed From Sakha101 Cv. Of Rice by Using SSR Markers

Cited by 3 publications

References 0 publications

YIELD POTENTIAL OF NOVEL RICE GENOTYPES, AND EFFECT OF Trichogramma RELEASE AND BLAST RESISTANCE ON RICE PRODUCTIVITY

YIELD POTENTIAL OF NOVEL RICE GENOTYPES, AND EFFECT OF Trichogramma RELEASE AND BLAST RESISTANCE ON RICE PRODUCTIVITY

Sakha108 Egyptian Rice Variety Japonica Type High Yielding and Resistant to Blast

Identification of Drought Tolerant Rice Genotypes Based on Morpho-Physiological and Yield Traits Under Normal and Drought Stress Conditions

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