| 1. |
- Mukamuhirwa, Alphonsine, et al.
(författare)
-
Concurrent Drought and Temperature Stress in Rice—A Possible Result of the Predicted Climate Change: Effects on Yield Attributes, Eating Characteristics, and Health Promoting Compounds
- 2019
-
Ingår i: International Journal of Environmental Research and Public Health. - : MDPI AG. - 1660-4601 .- 1661-7827. ; 16:6, s. 1043-1043
-
Tidskriftsartikel (refereegranskat)abstract
- Despite the likely increasing co-occurrence of drought and heat stress, not least in equatorial regions, due to climate change, little is known about the combinational effect of these stresses on rice productivity and quality. This study evaluated the impact of simultaneous drought and temperature stress on growth, grain yield, and quality characteristics of seven rice cultivars from Rwanda, grown in climate chambers. Two temperature ranges—23/26 °C night/day and 27/30 °C night/day—together with single or repeated drought treatments, were applied during various plant developmental stages. Plant development and yield were highly influenced by drought, while genotype impacted the quality characteristics. The combination of a high temperature with drought at the seedling and tillering stages resulted in zero panicles for all evaluated cultivars. The cultivar ‘Intsindagirabigega’ was most tolerant to drought, while ‘Zong geng’ was the most sensitive. A “stress memory” was recorded for ‘Mpembuke’ and ‘Ndamirabahinzi’, and these cultivars also had a high content of bioactive compounds, while ’Jyambere’ showed a high total protein content. Thus, climate change may severely impact rice production. The exploitation of genetic diversity to breed novel rice cultivars that combine drought and heat stress tolerance with high nutritional values is a must to maintain food security.
|
|
| 2. |
- Ortiz Rios, Rodomiro Octavio, et al.
(författare)
-
Oil crops for the future
- 2020
-
Ingår i: Current Opinion in Plant Biology. - : Elsevier BV. - 1369-5266 .- 1879-0356. ; 56, s. 181-189
-
Forskningsöversikt (refereegranskat)abstract
- Agriculture faces enormous challenges including the need to substantially increase productivity, reduce environmental footprint, and deliver renewable alternatives that are being addressed by developing new oil crops for the future. The efforts include domestication of Lepidium spp. using genomics-aided breeding as a cold hardy perennial high-yielding oil crop that provides substantial environmental benefits, expands the geography for oil crops, and improves farmers’ economy. In addition, genetic engineering in Crambe abyssinica may lead to a dedicated industrial oil crop to replace fossil oil. Redirection of photosynthates from starch to oil in plant tubers and cereal endosperm also provides a path for enhancing oil production to meet the growing demands for food, fuel, and biomaterials. Insect pheromone components are produced in seed oil plants in a cost-effective and environmentally friendly pest management replacing synthetically produced pheromones. Autophagy is explored for increasing crop fitness and oil accumulation using genetic engineering in Arabidopsis.
|
|
