An assessment of genetic variability for drought tolerance in rice
| العنوان: | An assessment of genetic variability for drought tolerance in rice |
|---|---|
| المؤلفون: | R. Gobu, Brij Kishore Kushwaha, Jai Prakash Lal |
| المصدر: | ORYZA- An International Journal on Rice. 56:26 |
| بيانات النشر: | Association of Rice Research Workers, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Forensic science, Agronomy, Yield (wine), Drought tolerance, Insomnia, medicine, food and beverages, Non-invasive ventilation, Genetic variability, medicine.symptom, Heritability, Biology, Panicle |
| الوصف: | The genetic variability for yield and yield contributing traits were studied in forty genotypes of rice under moisture-stress (rainfed) and moisture non-stress (irrigated) conditions. The results revealed highly significant differences among the genotypes for all the characters studied. This indicated the ample scope for selection of promising genotypes from the present set of genotypes for yield improvement. The high estimates of GCV and PCV coupled with high heritability and expected genetic advance for yield and important yield contributing traits showed their importance in selection for improving rice yield. The correlation study revealed that grain yield per plant had strong positive associations with effective panicle bearing tillers, days to 50% flowering, days to maturity, panicle weight, filled grains per panicle, total grains per panicle and length of main panicle. This indicated that grain yield of rice can be improved under both the environments having higher per se performances for the above traits. The genotypes such as HUR 105, NDR 359, Swarna were found to be best for yield and yield contributing traits. However, based on the different drought parameters, the varieties such as HUR105, HUR 4–3 and IET-20556 has been identified as drought tolerant which might be utilised in future breeding programmes. |
| تدمد: | 2249-5266 0474-7615 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::08e3cb5e03e88bde4e89f95b837f938b https://doi.org/10.5958/2249-5266.2019.00004.3 |
| رقم الأكسشن: | edsair.doi...........08e3cb5e03e88bde4e89f95b837f938b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 22495266 04747615 |
|---|