Genetic behavior of earliness and yield traits of some rice (Oryza sativa L.) genotypes

El-Aty, Mohamed S. Abd; Abo-Youssef, Mahmoud I.; Galal, Ahmed; Salama, A. A. K.; El-Shehawi, Ahmed M.; Elseehy, Mona M.; El‐Saadony, Mohamed T.; El-Tahan, Amira M.

doi:10.1016/j.sjbs.2021.12.054

Cited by 14 publications

(15 citation statements)

References 28 publications

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“…Similar results were found in other studies (Ganapati et al, 2020;Abd El-Aty et al, 2022a). However, under deficit irrigation, non-additive gene effects, appear to be highly important for plant height, panicle length, number of filled grains per panicle, and grain yield per plant, as shown by Akanksha and Jaiswal (2019).…”

Section: Discussionsupporting

confidence: 89%

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The Combining Ability for Grain Yield and Some Related Characteristics in Rice (Oryza sativa L.) Under Normal and Water Stress Conditions

et al. 2022

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Drought is considered a major threat to rice production. This study aimed to determine the effects of drought stress on the estimates of heterosis and the combining ability of rice genotypes for the number of days to 50% heading, plant height, number of panicles per plant, panicle length, number of filled grains per panicle, and grain yield per plant. Field experiments were conducted at the Rice Research and Training Center, Kafr El Sheikh, Egypt, during the rice-growing season in 2018 and 2019. Eight rice genotypes (Giza178, Giza179, Sakha106, Sakha107, Sakha108, WAB1573, NERICA4, and IET1444) were crossed in a half-diallel cross in the rice-growing season in 2018, which yielded a wide range of variability in numerous agronomic traits and drought tolerance measurements. In 2019, these parents and their 28 F1 crosses were produced by employing a three-replication randomized complete block design under normal and water stress conditions. The results showed remarkable differences across the studied genotypes under normal and water stress conditions. Under both conditions, Sakha107 was the best general combiner for earliness and short stature. Giza179 and Sakha108 were the best general combiners for grain yield per plant and one or more of its characteristics. Furthermore, in both normal and water stress conditions, Giza179 exhibited the highest general combining ability effects for all attributes that were evaluated. Under normal and water stress conditions, the Giza179 × Sakha107 cross demonstrated substantial and desirable specific combining ability effects on all the examined traits, which suggested that it could be considered for use in rice hybrid breeding programs. Therefore, we recommend that these vital indirect selection criteria to be considered for improving rice grain yield under drought conditions.

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Section: Discussionsupporting

confidence: 89%

“…It has a low fat content and high carbohydrate, protein, vitamin, and mineral content. Rice is widely grown in many parts of the world, including Egypt (Ullah Zaid et al, 2018;El-Mowafi et al, 2021;Abd El-Aty et al, 2022a). The global population is estimated to increase from 7.7 billion today to 9 billion in 2035.…”

Section: Introductionmentioning

confidence: 99%

The Combining Ability for Grain Yield and Some Related Characteristics in Rice (Oryza sativa L.) Under Normal and Water Stress Conditions

et al. 2022

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“…It has been reported that water deficiency also alters the biochemical responses in plants by increasing the antioxidant capacity ( Anjum et al., 2012 ; Lum et al., 2014 ; Abd El-Aty et al., 2022 ; Abo Sen et al., 2022 ). For instance, drought stress can enhance the activities of the antioxidant enzymes, superoxide dismutase (SOD), CAT, and POD, thus developing defense mechanisms against ROS ( Khedr et al., 2022 ).…”

Section: Discussionmentioning

confidence: 99%

Foliar spray of silica improved water stress tolerance in rice (Oryza sativa L.) cultivars

El-Okkiah

El-Afry²,

Eldeen³

et al. 2022

Front. Plant Sci.

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Rice (Oryza sativa L.) is a major cereal crop and a staple food across the world, mainly in developing countries. Drought is one of the most important limiting factors for rice production, which negatively affects food security worldwide. Silica enhances antioxidant activity and reduces oxidative damage in plants. The current study evaluated the efficiency of foliar spray of silica in alleviating water stress of three rice cultivars (Giza178, Sakha102, and Sakha107). The seedlings of the three cultivars were foliar sprayed with 200 or 400 mg l-1 silica under well-watered [80% water holding capacity (WHC)] and drought-stressed (40% WHC)] conditions for two summer seasons of 2019 and 2020. The obtained results demonstrated that drought stress caused significant decreases in growth, yield, and physiological parameters but increases in biochemical parameters (except proline) of leaves in all rice cultivars compared to well-irrigated plants (control). The roots of drought-stressed seedlings exhibited smaller diameters, fewer numbers, and narrower areas of xylem vessels compared to those well-watered. Regardless of its concentration, the application of silica was found to increase the contents of photosynthetic pigments and proline. Water relation also increased in seedlings of the three tested rice cultivars that were treated with silica in comparison to their corresponding control cultivars when no silica was sprayed. Foliar application of 400 mg l-1 silica improved the physiological and biochemical parameters and plant growth. Overall, foliar application of silica proved to be beneficial for mitigating drought stress in the tested rice cultivars, among which Giza178 was the most drought-tolerant cultivar. The integration of silica in breeding programs is recommended to improve the quality of yield and to provide drought-tolerant rice cultivars under drought-stress conditions.

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“…In light of this, those parents who performed well in terms of both mean performance and GCA e ect were considered good general combiners in the current study. According to Abd El-Aty et al [31] and Rajan et al [32], the average performance of the parents together with the nature of combining abilities gives the criteria for selecting parents for hybridization. is characteristic may benefit from heterosis breeding.…”

Section: Gca E Ects and Performance Per Se Of Parentsmentioning

confidence: 99%

Understanding Gene Action, Combining Ability, and Heterosis to Identify Superior Aromatic Rice Hybrids Using Artificial Neural Network

Sunny

Chakraborty

Kumar

et al. 2022

Journal of Food Quality

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The aromatic rice represents a smaller but independent rice collection, the quality of which is considered to be highly acceptable. Farmers are interested in growing aromatic rice due to high premium market price. The prime objective of this study was to enhance genetic improvement of aromatic rice. Combining ability analysis (GCA and SCA) and gene action are studied in a set of 7 × 7 half-diallel crosses. Twenty-one hybrids along with their seven parents were assessed in randomized complete block design. Different quantitative characters were used to estimate the magnitude of heterosis. GCA and SCA significance for all traits revealed the importance of both additive and nonadditive genetic components. Several genes determine quantitative traits, with each gene having very little impacts and being easily influenced by environmental factors. Pusa Basmati-1 and Govindobhog were the best combiners among the seven parents. In terms of per se performance, heterosis, and SCA effects on seed yield per plant and important yield qualities, the crosses BM-24 Deharadun Pahari, Baskota × Tulaipanji, and Pusa Basmati-1 × Tulaipanji may be of interest. Because of its interconnected processing properties, ANN can play a critical role in this experiment. As a result, the current study was carried out to collect data and validate it using an artificial neural network (ANN) on the combining ability, gene action, and heterosis involved in the expression of diverse fragrant rice features. Using ANN, the validation of the result was done and it was found that the overall efficiency was approximately 99%.

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Genetic behavior of earliness and yield traits of some rice (Oryza sativa L.) genotypes

Cited by 14 publications

References 28 publications

The Combining Ability for Grain Yield and Some Related Characteristics in Rice (Oryza sativa L.) Under Normal and Water Stress Conditions

The Combining Ability for Grain Yield and Some Related Characteristics in Rice (Oryza sativa L.) Under Normal and Water Stress Conditions

Foliar spray of silica improved water stress tolerance in rice (Oryza sativa L.) cultivars

Understanding Gene Action, Combining Ability, and Heterosis to Identify Superior Aromatic Rice Hybrids Using Artificial Neural Network

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