Asexual propagation techniques for producing good quality germplasm breeding and dissemination purposes have proven difficult acacia species comprised of mature planting material. The study was conducted to the effect rejuvenation on rooting ability cuttings. Shoots were induced from lower branch by cutting a part crown leaving it horizontally bench under misting system. harvested further used ...

Literature on the question whether the juvenile stage of vertebrates is hormonally regulated is scarce. It seems to be intuitively assumed that this stage of development is automated, and does not require any specific hormone(s). Such reasoning mimics the state of affairs in insects until it was shown that surgical removal of a tiny pair of glands in the head, the corpora allata, ended larval l...

The realisation that arthropod moulting and metamorphosis are controlled by juvenile hormones led researches to suggest that such chemicals might be used both against plant pests and animal parasites (Robbins, 1972; Connat, 1988; Dryden, Neal, Bennette, 1989). As the naturally occurring juvenile hormones are unstable compounds in the environment, hundreds of synthetic preparations are prepared ...

Experiments presented here suggest that control of gene expression mediated by juvenile hormone is at the translational level and involves the appearance of a new transfer RNA and its activating enzyme. The evidence is as follows. Topical application of juvenile hormone to 1st day pupae of Tenebrio molitor caused a second pupal molt after 7 days, instead of an adult molt. Ribosomes isolated fro...

Metasequoia glyptostroboides is a famous redwood tree of ecological and economic importance, and requires more than 20 years of juvenile-to-adult transition before producing female and male cones. Previously, we induced reproductive buds using a hormone solution in juvenile Metasequoia trees as young as 5-to-7 years old. In the current study, hormone-treated shoots found in female and male buds...