Mechanisms of Drought Resistance
Mechanisms of Drought Resistance There are four different mechanisms which help in survival of plants under moisture deficit conditions. There are: 1) Drought escape. 2) Drought avoidance. 3) Drought …
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Mechanisms of Drought Resistance There are four different mechanisms which help in survival of plants under moisture deficit conditions. There are: 1) Drought escape. 2) Drought avoidance. 3) Drought …
Definition and Characteristics of drought resistant plants Definition of Drought Resistance It is the ability of a plant to maintain favorable water balance and turgidity even exposed to draught …
Key Features of Drought In agricultute, problems of drought, salinity and alkalinity are of major concern among environmental stresses. Drought refers to the condition of soil moisture deficiency or …
Control of soil temperature 1. The thermal regimes favourable for plant growth as well as different micro-organisms can be maintained through different management practices under field condition. By regulating …
Effect of soil temperature on plant growth and nutrition There are various influences of soil temperature on soil fertility by changing the soil environment which in turn affect plant growth. …
Factors affecting soil temperature The temperature a soil attains depends on (a) heat supply—how much heat reaches the soil surface and (b) dissipation of heat—what happens to that heat within …
Sources of soil heat There are various sources of soil heat namely, solar radiation, biochemical reactions, conduction, precipitation, exposure and vegetation etc. (i). Solar radiation Radiant energy from …
Weathering of rocks and minerals (Physical and Chemical): Weathering is a natural process of breakdown and transformation of rocks and minerals into unconsolidated residues, called regolith. Regolith is lying on …
Secondary Thickening of Cell wall Secondary thickening of the cell-wall may be more or less uniform all-round the cell and almost always has a stratified appearance. But in those …
Particle density vs bulk density Particle density Bulk density 1. The weight per unit volume of solid portion of soil is called particle density. 1. The weight per unit bulk …