Heat Stress at Reproductive Stage Disrupts Leaf Carbohydrate Metabolism, Impairs Reproductive Function, and Severely Reduces Seed Yield in Lentil
| Autor: | Shiv Kumar Agrawal, Sarvjeet Singh, Jagmeet Kaur, Kalpna Bhandari, Harsh Nayyar, Kadambot H. M. Siddique, Neil C. Turner |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Biomass (ecology) Reproductive function biology Phenology Soil Science Sowing Plant Science Photosynthetic efficiency medicine.disease_cause 01 natural sciences Crop 03 medical and health sciences 030104 developmental biology Agronomy Pollen Genetics medicine biology.protein Sucrose-phosphate synthase Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | Journal of Crop Improvement. 30:118-151 |
| ISSN: | 1542-7536 1542-7528 |
| DOI: | 10.1080/15427528.2015.1134744 |
| Popis: | Rising temperatures or global warming will be detrimental for various crops. Moreover, because of increasing demand for lentil (Lens culinaris L.) grains, there is a need to broaden the adaptation of this crop into warmer climes. Hence, a study was conducted to evaluate the effects of high temperatures (>32/20oC) during reproductive growth on performance of lentil and to probe the mechanisms associated with reproductive failures. Three lentil genotypes, viz., LL699, LL931, and LL1122, were grown in pots at two sowing dates: (1) the normal sowing time (NS) in November so that day/night temperatures during the reproductive stage were below 32/20°C; and (2) late-sown (LS) in February so that temperatures during the reproductive stage were above 32/20°C. The plants were fully irrigated during both the sowing situations. In LS plants, the phenology was accelerated, leading to substantial reduction in biomass, flowers, and pods, accompanied by marked shortening of flowering period and podding duration, ... |
| Databáze: | OpenAIRE |
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