After screeninig several lhundlred cultures of fungi, actinomvcetes, aid bacteria isolated fromii various soils for plant growtlh regulating activity, a fungus culture. F7-2578 (identified later as Peneicilliumiit pufrpurresceiis), was found( whIiclh had a (lwNarfing effect on pea planits. A foliage spray of the culture filtrate inhibite(d the gro)wvth of the stemls, producing shortened interno...

Since 1968, three spontaneous 4x melons (Cucumis melo L.) plants were discovered in our field or greenhouse plantings. Two were found in the cultivar Planters Jumbo and one in the virescent marker C879-52. Each of these 4x plants had rounded cotyledons, shorter internodes, thicker stems and leaves, more hairs, and smaller fruits, with larger stem and blossom scars, than their 2x counterparts. A...

Knowledge of genetic diversity and relationships between genotypes is mainly important for selection of parental genotypes. Moreover, assessing diversity across and within crop varieties is important to improve the description of collections in gene banks and in on-farm conservation practices. In order to evaluation and study of genetic diversity in the bean in normal condition, forty-five bean...

Setaria viridis is a C4 grass used as a model for bioenergy feedstocks. The elongating internodes in developing S. viridis stems grow from an intercalary meristem at the base, and progress acropetally toward fully expanded cells that store sugar. During stem development and maturation, water flow is a driver of cell expansion and sugar delivery. As aquaporin proteins are implicated in regulatin...

An experiment was designed to apply a controlled bending to a tomato stem and simultaneously to measure its effect on stem elongation. Stem elongation was measured over 2 d until steady and equal rates were obtained for the control and the treated plants. Thereafter, the basal part of the stem was submitted to a transient controlled bending at constant displacement rate using a motorized dynamo...

Background & Aim: Lemon verbena (Lippia citriodora H.B.K.) is a richly scented herb and has a long history as a sacred and medicinal plant. Select an appropriate medium in tissue culture is a necessity for success Experimental: To evaluate the effect of 10 medium of previous researches for Lippia micropropagation (1- MS medium supplemented with BAP (3 mgL-1) + IBA ...

By controlling the interaction between cationic surfactant micelles and ammonium metatungstate during the formation of mesoporous silica structure, highly dispersed tungsten carbide (WC) nanoparticles of 2.0 nm in diameter on mesoporous silica nanospheres were synthesized at lower concentration of ammonium metatungstate. With additional ammonium metatungstate, a novel mesoporous silica nanobamb...