Agriculture
- Calcium Deficiency
Calcium is one of the most important plant nutrients. It is important to build a strong structure of cell membranes, and plays an important role in the metabolism of nitrogen, protein and formation of potassium absorption. Calcium deficiencies are usually...
- Gas Exchange In Plants
Gas Exchange in PlantsGas exchange is the process whereby water vapor and oxygen leave and carbon dioxide enters plant leaves. The gaseous balance in plants is quite complex because plant cells carry on both respiration and photosynthesis. All living...
- Cotton
Cotton means, ?thread?. Cotton is an in determinant plant. There are four cultivated species of cotton. · Gossipium arborium · Gossipium herbacium · Gossipium hirsutum · Gossipium barbaden The first two species are called Old-world cotton. It...
- Improving Crop Harvest Index
By Dr Rashid Ahmad, Bilal Hassan & Khawar Jabran GRAIN crops such as wheat, rice, maize, sorghum, sunflower, dry beans, soybean and lentils constitute essential source of proteins and carbohydrates. Per hectare grain yield of these crops is far below...
- Legume Crops | Salinity And Drought Management
By: Hussain N., G. Sarwar, H. Schmeisky, Salim Al-RawaThe predicted global climatic changes anticipate rise in temperature, cyclones, floods, variability and unpredictability of rainfall, droughts, and melting of ice. Expected desiccation and rise in...
Agriculture
Irrigation: Physical importance
Irrigation is the artificial supply of water to the plant/crops, according to the free dictionary(http://www.thefreedictionary.com/) irrigation is define as To supply (dry land) with water by means of ditches, pipes, or streams; water artificially. Following are the some important function or role of irrigation in plant physical and physiological process;
? The plant system itself contains about 90% of water.
? Amount of water varies in different parts of plant as follows.
* Apical portion of root and shoot > 90%.
* Stem, leaves and fruits 70?90%
* Woods 50?60%
* Matured parts 15?20%
* Freshly harvested grains 15?20%
? It acts as base material for all metabolic activities. All metabolic or biochemical reactions in plant system need water.
? It plays an important role in respiration and transpiration.
? It plays an important role in photosynthesis.
? It activates germination and plays an important role in plant metabolism for vegetative and reproductive growth.
? It serves as a solvent in soil for plant nutrients.
? It also acts as a carrier of plant nutrients from soil to plant system.
? It maintains plants temperature through transpiration.
? It helps to keep the plant erect by maintaining plant?s turgidity.
? It helps to transport metabolites from source to sink.
? Amount of water varies in different parts of plant as follows.
* Apical portion of root and shoot > 90%.
* Stem, leaves and fruits 70?90%
* Woods 50?60%
* Matured parts 15?20%
* Freshly harvested grains 15?20%
? It acts as base material for all metabolic activities. All metabolic or biochemical reactions in plant system need water.
? It plays an important role in respiration and transpiration.
? It plays an important role in photosynthesis.
? It activates germination and plays an important role in plant metabolism for vegetative and reproductive growth.
? It serves as a solvent in soil for plant nutrients.
? It also acts as a carrier of plant nutrients from soil to plant system.
? It maintains plants temperature through transpiration.
? It helps to keep the plant erect by maintaining plant?s turgidity.
? It helps to transport metabolites from source to sink.
- Calcium Deficiency
Calcium is one of the most important plant nutrients. It is important to build a strong structure of cell membranes, and plays an important role in the metabolism of nitrogen, protein and formation of potassium absorption. Calcium deficiencies are usually...
- Gas Exchange In Plants
Gas Exchange in PlantsGas exchange is the process whereby water vapor and oxygen leave and carbon dioxide enters plant leaves. The gaseous balance in plants is quite complex because plant cells carry on both respiration and photosynthesis. All living...
- Cotton
Cotton means, ?thread?. Cotton is an in determinant plant. There are four cultivated species of cotton. · Gossipium arborium · Gossipium herbacium · Gossipium hirsutum · Gossipium barbaden The first two species are called Old-world cotton. It...
- Improving Crop Harvest Index
By Dr Rashid Ahmad, Bilal Hassan & Khawar Jabran GRAIN crops such as wheat, rice, maize, sorghum, sunflower, dry beans, soybean and lentils constitute essential source of proteins and carbohydrates. Per hectare grain yield of these crops is far below...
- Legume Crops | Salinity And Drought Management
By: Hussain N., G. Sarwar, H. Schmeisky, Salim Al-RawaThe predicted global climatic changes anticipate rise in temperature, cyclones, floods, variability and unpredictability of rainfall, droughts, and melting of ice. Expected desiccation and rise in...