In the tubercle of O. cumana of high-virulent populations from Rostov region of Russian Federation some changes were found, which helped to improve the seed productivity and to decrease the development period of fruiting shoots. The maintenance of high level of seed productivity can be realized by...

Invasion of exotic plants is threatening global biodiversity. Bidens pilosa L. var. radiata, a member of Asteraceae, has successfully invaded Taiwan after being introduced to the island. Knowledge of its reproduction is necessary in developing effective ways to control the spread of this plant. The ...

A study was conducted to determine whether infection by Cassytha pubescens could affect the growth and reproductive output of Cytisus scoparius. Regular observations over one season were made of flowering and consequent fruit and seed production of a field population of 40 Cytisus scoparius....

Chromolaena odorata is a perennial weed which invades forest areas cleared for developing plantations, nurseries, young plantations, and wastelands, but is conspicuously absent in the interior of dense forests or established plantations with closed canopy. The fresh seeds of C. odorata were found...