Drought stress climatic conditions

Productivity of many crops is highly vulnerable to extreme external conditions. Environmental stress factors such as drought and salinity have become more and more serious due to climate change and appear in many areas worldwide with higher frequency.

8p vimulcahy 18-09-2023 2 2   Download

Cereals and legumes are largely grown under harsh rainfed conditions in India, which is further complicated by climate change and climate variability. Tropical drylands are experiencing deficit rainfall over the years. Due to this, agricultural production is affected in arid and semi arid regions. There is an urgent need to find low cost, ecofriendly, sustainable solutions to manage crop productivity under rainfed situations to help resource poor small and marginal farmers in particular. Plant microbiome interactions offer plants to tide over adverse conditions viz.

16p chauchaungayxua11 23-03-2021 19 1   Download

In the changing climate scenario, drought could be continued as a major abiotic limitation for crop productivity. Finger millet although known for its drought tolerance, the drought stress decreases the grain yield from 25 to 100 percent depending on the duration and magnitude of drought stress. Present study was conducted to explore the genetic variability of selected genotypes over the ruling varieties if any, based on the extent of reduction in grain yield, and dependent photosynthetic traits due to moderate drought stress for 18 to 20 days (grand growth to flower primordial initiation).

9p kethamoi7 26-08-2020 13 1   Download

Premature leaf senescence induced by external stress conditions, e.g. drought stress, is a main factor for yield losses in barley. Research in drought stress tolerance has become more important as due to climate change the number of drought periods will increase and tolerance to drought stress has become a goal of high interest in barley breeding.

15p vihashirama2711 21-05-2020 12 1   Download

Predicted climate changes announce an increase of extreme environmental conditions including drought and excessive heat and light in classical viticultural regions. Thus, understanding how grapevine responds to these conditions and how different genotypes can adapt, is crucial for informed decisions on accurate viticultural actions.

19p vihashirama2711 21-05-2020 11 0   Download

The ever changing environmental conditions have been faced by plants through evolutionary time, among which drought is considered as the most common having an adverse effect on growth and development of the plants which is one of the major constraints on plant productivity worldwide and is expected to increase with climatic changes. The symbiotic relationship between arbuscular mycorrhizal (AM) fungi and the roots of higher plants is widespread in nature.

10p quenchua4 06-04-2020 25 1   Download

Intending to scrutinize the influence of silicon (Si) on the yield attributes of rice under well-watered and water-deficit conditions, a field trial for two successive years (2017 and 2018) was laid out in split- plot design with four treatments viz. Control (T1), Si fertilization (T2), Si fertilization + Drought stress (T3) and Drought stress (T4). The results distinctly validated positive significant correlation between silicon and the yield attributes such as panicle weight (flowering and maturity) and harvest index in rice under well-watered conditions.

10p nguaconbaynhay3 07-02-2020 19 0   Download

Chhattisgarh, the 26th state of the Indian Union came into existence on November 1st, 2000. In Chhattisgarh, maize is a kharif season crop and second most important crop next to paddy in terms of both area and production. The state has got very good potential for maize but the productivity is very low due to cultivation of open pollinated varieties (OPVs) and improper input management practices. The real potential can be realized by the adoption of hybrid maize especially single cross hybrids with full package of practices.

21p kethamoi2 14-12-2019 11 1   Download

Endophytes are the organisms that live within plant tissues and spend at least a half of their life time without causing disease under any circumstances. So, the endophytes are commonly defined as those organisms whose infections are inconspicuous and symptomless in host tissue and internal microbial colonization. Both prokaryote (bacteria) and eukaryotes (fungi) colonize the plant tissues exhibiting a little variation in their colonization mode. The former colonize intracellularly in vascular tissues and the later shows asymptomatic colonization either inter or intracellularly.

12p kethamoi2 15-12-2019 14 0   Download

Remote sensing has several advantages in the field of agronomical research purpose. The assessment of agricultural crop canopies has provided valuable insights in the agronomic parameters. Remote sensing play a significant role in crop classification, crop monitoring and yield assessment. The use of remote sensing is necessary in the field of agronomical research purpose because they are highly vulnerable to variation in soil, climate and other physico- chemical changes.

14p nguaconbaynhay1 04-12-2019 27 2   Download

Plants are sessile organisms and as such must have mechanisms to deal with both abiotic and biotic stresses to ensure survival. The term “abiotic stress” includes many stresses caused by environmental conditions such as drought, salinity, UV and extreme temperatures. Due to global climate change it is predicted that abiotic stresses will increase in the near future and have substantial impacts on crop yields (Intergovernmental Panel of Climate Change; http://www.ipcc.ch).

397p thienbinh1311 13-12-2012 56 12   Download

Stresses on the climate system are already causing impacts on Earth’s surface. These include not only rising surface temperatures, but also increasingly frequent floods and droughts, and changes in natural ecosystems, such as earlier flower- ing of plants, and poleward shifts in the distribution of several species. All of these changes are inextricably linked to the health of human societies.

80p quygia123 01-11-2012 57 1   Download