Effect of endogenous gibberellic acid content on physiological and yield related traits in late sown wheat
| Autor: | SHIVANI NAGAR, V P SINGH, NEERA SINGH, RAJKUMAR DHAKAR, AJAY ARORA |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | The Indian Journal of Agricultural Sciences, Vol 92, Iss 6 (2022) |
| Druh dokumentu: | article |
| ISSN: | 0019-5022 2394-3319 |
| DOI: | 10.56093/ijas.v92i6.102508 |
| Popis: | Terminal heat stress is becoming a major factor in limiting wheat production with increasing evidence of heat stress in present scenario of climate change. Gibberellic acid is one of the major plant hormones playing crucial role in plant development from germination to seed development, but there is huge gap in knowledge about its role under heat stress. Present study was conducted in late sown wheat (2014–15) at ICAR-IARI, New Delhi to examine the inter-relationship between gibberellic acid (GA3) level and physiological and yield related traits under heat stress in 40 wheat (Trirtcum aestivum L.) genotypes. Genotypes were categorized into three classes namely tolerant, intermediate and sensitive based on heat stress tolerance ability. The diversity in endogenous GA3 concentration was found among the cultivars. The inverse relationship between GA3 level in flag leaf and tolerance level of genotypes was found in this study through regression analysis (P |
| Databáze: | Directory of Open Access Journals |
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