Peppermint (Mentha piperita L.) is one of the most important plants producing essential oil. An experiment was carried out using a randomized complete block design with 3 replications to study the effect of salinity stress on growth parameters, essential oil percent of peppermint. 4 levels of salinity solution containing 0, 50, 100 and 200 mmol NaCl was applied in irrigation plantings ...

Roots of many higher plants increase in diameter through the enlargement of cells formed in a vascular cambium. After the seedling plant is established, thickening begins near the root base by the initiation of cell divisions in the procambial tissue of the central cylinder. How the vascular cambium is initiated, what maintains cambial activity and causes it to extend, with time, along the root...

Peppermint (Mentha piperita L.) is one of the most important plants producing essential oil. An experiment was carried out using a randomized complete block design with 3 replications to study the effect of salinity stress on growth parameters, essential oil percent of peppermint. 4 levels of salinity solution containing 0, 50, 100 and 200 mmol NaCl was applied in irrigation plantings ...

The present study was conducted to optimize the green house conditions for Propagation of Stevia rebaudiana cuttings. belonging family Asteraceae, is a native Brazil and Paraguay. Its leaves produced stevioside, an caloric natural sweetener. sweetness stevioside 150 -300 times greater than sucrose. Seeds were very small in size. Production through seeds not beneficial because viable germination...

Plant primary growth occurs in two opposite directions, stems and roots both generating branched patterns during their development. However, where stem development appears extremely regular, based on phyllotactic patterns, root architecture appears somewhat random, controlled essentially by external clues such as nutrients concentration (Malamy et al. 2005). The regularity of stem development h...

Root architecture is a crucial part of plant adaptation to soil heterogeneity and is mainly controlled by root branching. The process of root system development can be divided into two successive steps: lateral root initiation and lateral root development/emergence which are controlled by different fluxes of the plant hormone auxin. While shoot architecture appears to be highly regular, followi...