In preceding papers it has been shown that gravity has a directive influence on the arrangement of certain organs in the regeneration of Bryophyllum calycinum. Thus, when an excised piece of stem of Bryophyllum is suspended horizontally in moist air, roots will grow abundantly on the lower side of the stem but not on the upper side, with the exception of the basal end where the roots will grow ...

Both cellular differentiation and stem cell maintenance must occur at the root apex in order to ensure the continuous growth of plant roots. In this issue of Cell, it is revealed that a canonical retinoblastoma pathway plays a crucial role in regulating the balance between differentiation and renewal of plant root stem cells.

Rhizophora mangle L., one of the most common mangrove species, has an aerial structure system that gives it stability in permanently swampy soils. In fact, these structures, known as "aerial roots" or "stilt roots", have proven to be peculiar branches with positive geotropism, which form a large number of roots when in contact with swampy soils. These organs have a sympodial branching system, w...

Field experiment was carried out at Ornamental Nursery, Department of Horticulture, Khyber Pakhtunkhwa (KP) Agricultural University Peshawar, during 2009 to study “the response of plane tree cuttings to different planting dates”. Three types of cuttings (hardwood cuttings, semi-hardwood cuttings, Softwood cuttings) and three dates (6 January, 21 January and 5 February) were studied. The experim...

Experiments with ethylene-insensitive tomato (Lycopersicon esculentum) and petunia (Petunia x hybrida) plants were conducted to determine if normal or adventitious root formation is affected by ethylene insensitivity. Ethylene-insensitive Never ripe (NR) tomato plants produced more below-ground root mass but fewer above-ground adventitious roots than wild-type Pearson plants. Applied auxin (ind...

Tanjung Selamat Village is one of the villages in South Labuhanbatu Regency, North Sumatra Province. has several types bananas, which Kepok Banana. This study aims to determine and analyze morphology Banana plant (Musa Paradisiaca Var. Balbisiana colla) Village, type research descriptive qualitative by making observations with survey techniques observing plants. The technique used collecting da...

The major aim of the present study was to investigate element (Fe, Ni, Pb, V, Zn) concentrations in sediment and different tissues of Phragmities australis and Typha latifolia in Hor al-Azim Wetland Southwest Iran. Sampling of sediments and aquatic plants was carried out during spring and summer 2014. Results showed that the mean  concentrations of elements in Phragmities ...