4 extractive question-and-answer pairs built from Assessment of combining ability, heterosis and heterotic status of grain sorghum (Sorghum bicolor) hybrids | The Indian Journal of Agricultural Sciences, published by epubs.icar.org.in. Source-evidenced topics include combining ability, heterosis, heterotic status, grain sorghum, sorghum bicolor, hybrids, gca status, sca effects. Every answer is a verbatim span of text the source prints, and each row carries the passage it sits in, its offset in that passage, the source quote, the page and the location in the document, so any row can be checked against the original. Question types in the export: 2 summary, 1 list, 1 relationship. 4 of the 4 pairs (100.0%) ask explanatory questions; the remaining 0 are factual or table-based questions. 100.00% of rows pass the corpus quality gate.
This dataset contains four extractive question-and-answer pairs focused on the combining ability, heterosis, and heterotic status of grain sorghum hybrids. The study evaluates 40 hybrids against two checks in randomized complete block design experiments conducted during the 2023 and 2024 kharif seasons. Key findings include the identification of superior parental combiners and elite hybrid crosses with significant heterotic effects for grain yield. The dataset also references related studies on sorghum research and genetic analysis.
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df = desidata.load("epubs-icar-org-in-bd2738e9a36e73585a8b06794ec32736")
df.head()First 4 of 4 rows
| question | answer | context | answer_start | question_type | knowledge_quality_score | source_document | source_quote | source_page | source_location | confidence | validation_status |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Which parents were identified as the best general combiners for most yield and component traits? | Parents 456 A and SOR 3570 (with GCA status ‘H’) | The study was carried out during rainy (kharif) season of 2023 and 2024 at AICRP on Sorghum, Agriculture Research Station, Chamarajanagar, Karnataka to study the magnitude of combining ability and quantify the extent of heterosis among 40 hybrids, which were evaluated in comparison with two checks (CSH-30 and CSH-14) in randomised complete block design (RCBD). The parental materials consisted of four male sterile lines, viz. A, 463 A, 456 A and 415 A and 10 restorer lines namely SOR 3350, SOR 3289, SOR 11938, SOR 11942, SOR 11943, SOR 3182, SOR 6852, SOR 5002, SOR 3570 and SOR 4346. Parents 456 A and SOR 3570 (with GCA status ‘H’) were ascertained as the best general combiners for most of the yield and its component traits. | 590 | relationship | 0.970 | https://epubs.icar.org.in/index.php/IJAgS/article/view/164484 | A, 463 A, 456 A and 415 A and 10 restorer lines namely SOR 3350, SOR 3289, SOR 11938, SOR 11942, SOR 11943, SOR 3182, SOR 6852, SOR 5002, SOR 3570 and SOR 4346. Parents 456 A and SOR 3570 (with GCA status ‘H’) were ascertained as the best general combiners for most of the yield and its component traits. | p[0] | 0.700 | valid | |
| What topic did Paterson A H, Bowers J E, and Chapman B A address in their 2004 study? | Ancient polyploidisation predating divergence of the cereals, and its consequences for comparative genomics. | Combining ability studies through Line × Tester design in sweet sorghum (Sorghum bicolor L.) for bioethanol production. Electronic Journal of Plant Breeding 13(3): 967–73. Kumar S and Chand P. 2015. Combining ability and heterosis for grain yield, fodder yield and other agronomic traits in sorghum [Sorghum bicolor (L.) Moench]. Journal of Applied and Natural Science 7(2): 1001. Mohan Rao G, Reddy L, Kulkarni R S, Ramesh S and Reddy S L. 2004. Prediction of heterosis based on genetic divergence of parents through regression analysis in sunflower (Helianthus annuus L.). Helia 27(41): 51–58. Paterson A H, Bowers J E and Chapman B A. 2004. Ancient polyploidisation predating divergence of the cereals, and its consequences for comparative genomics. Proceedings of the National Academy of Sciences 101(26): 9903–08. Patil J V, Reddy P S, Prabhakar U A, Gomashe S and Ganapathy K N. 2014. | 644 | summary | 0.970 | https://epubs.icar.org.in/index.php/IJAgS/article/view/164484 | 2004. Ancient polyploidisation predating divergence of the cereals, and its consequences for comparative genomics. Proceedings of the National Academy of Sciences 101(26): 9903–08. | ||||
| What topic did Rana B S and colleagues address in their 1998 study? | Sorghum (Sorghum bicolor) research in India. | History of post-rainy season sorghum research in India and strategies for breaking the yield plateau. Indian Journal of Genetics and Plant Breeding 74(3): 271–85. Patil V R and Kute N S. 2015. Combining ability studies in grain sorghum. Journal of Global Biosciences 4(1): 1902–09. Pattanashetti B M, Sajjanar G M, Maralappanavar M S, Swaroop K O and Soregaon C D. 2025. Heterosis and combining ability analysis using landrace-based hybrids for yield and yield components in rabi sorghum. Electronic Journal of Plant Breeding 16(4): 489–95. Rana B S, Singh B U, Rao M H, Indira S, Rao S S and Kaul S L. 1998. Sorghum (Sorghum bicolor) research in India. The Indian Journal of Agricultural Sciences 68(8): 405–22. | 609 | summary | 0.970 | https://epubs.icar.org.in/index.php/IJAgS/article/view/164484 | 1998. Sorghum (Sorghum bicolor) research in India. The Indian Journal of Agricultural Sciences 68(8): 405–22. | p[8] | 0.700 | valid | |
| Which elite crosses were identified with high per se performance and significant heterotic effects for grain yield? | 456 A × SOR 3570, 463 A × SOR 3570 and 463 A × SOR 4346 | The elite crosses, namely, 456 A × SOR 3570, 463 A × SOR 3570 and 463 A × SOR 4346 were identified with high per se performance, highly significant SCA effects coupled with highly significant standard heterotic effects for grain yield/plant over both the checks and overall heterotic status of these hybrids were of either H × H or H × L/L × H cross combinations. ABD Elraheem O A Y, Hafeez H M and Ahmed Y M Y. 2023. Heterosis and combining ability in grain sorghum. Egypt Journal of Plant Breeding 27(3): 327–42. Arunachalam V and Bandyopadhyay A. 1979. Are “multiple cross-multiple pollen hybrids’ an answer for productive populations in Brassica campestris var. ‘brown sarson’? Theory of Applied Genetics 54: 203–07. Begna T. 2021. Combining ability and heterosis in plant improvement. Open Journal of Plant Science. 108–17. Dehinwal A K, Kumar A, Pahuja S K, Shafiqurrahaman M and Kumar A. 2017. | 27 | list | 0.820 | https://epubs.icar.org.in/index.php/IJAgS/article/view/164484 | The elite crosses, namely, 456 A × SOR 3570, 463 A × SOR 3570 and 463 A × SOR 4346 were identified with high per se performance, highly significant SCA effects coupled with highly significant standard heterotic effects for grain yield/plant over both the checks and overall heterotic status of these hybrids were of either H × H or H × L/L × H cross combinations. |
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| p[8] |
| 0.700 |
| valid |
| p[0] |
| 0.700 |
| valid |