In androdioecious metapopulations, where males co-occur with hermaphrodites, the absence of males from certain populations or regions may be explained by locally high selfing rates, high hermaphrodite outcross siring success (e.g. due to high pollen production by hermaphrodites), or to stochastic processes (e.g. the failure of males to invade populations or regions following colonization or ran...

Artemisia annua is currently the only commercial source of the sesquiterpene lactone artemisinin.Since artemisinin was discovered as the active component of A. annua in early 1970s, hundreds of papers have focused on the anti-parasitic effects of artemisinin and its semi-synthetic analogs dihydroartemisinin, artemether, arteether, and artesunate. Artemisinin per se has not been used in mainstre...

Artemisia is one of the plants that can be used as an alternative medicine for malaria. The plant contains secondary metabolites in form artemisinin compounds function antimalarials. One efforts done to increase growth annua. by using a regulator gibberellins (GA3). Using Randomized Block Factorial Designs (RBFD) with first factor being concentration 50 mg.L-1 (K1), mg.L-1(K2), 150 (K3), 200 (K...

1 Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, United States, 2 Department of Horticulture, University of Georgia, Athens, GA, United States, 3 U.S. Salinity Laboratory, United States Department of Agriculture, Agricultural Research Service, Riverside, CA, United States, 4 Department of Seed, Crop and Horticultural Sciences, University of Eldoret...

Males of plants with separate sexes are often more prone to attack by herbivores than females. A common explanation for this pattern is that individuals with a greater male function suffer more from herbivory because they grow more quickly, drawing more heavily on resources for growth that might otherwise be allocated to defence. Here, we test this 'faster-sex' hypothesis in a species in which ...