Resistance to witchweed Weeds are unwanted. Often, easy removed by hoeing. But it is a different story when weeds are parasitising a plant. Striga is one of these parasitising weeds. It is a real pest in sub-Sahara Africa. It parasitises crops like maize, rice, and sorghum. And it gets its nickname ‘witchweed’ from the abilityContinue reading “Resistance to witchweed”
Category Archives: Science
Ghost plants
Ghost plants Plants and the colour green are inseparable connected. Plants are green due to their chlorophyl, the small organelles where photosynthesis takes place. Still there are plants that, irrespective of the advantages of making your own energy, chose to chuck their chlorophyl out. Without chlorophyl these plants have a ghostly appearance and get theirContinue reading “Ghost plants”
New plants
New plants Plants reproduce through pollination. But they can do it also without. For example, can you multiply plants via cuttings. The cuttings are a clone of the mother plant. You can also do this on a much smaller scale. Take mature cells, from for example a leaf, and grow them on culture media andContinue reading “New plants”
Only supple cells may stretch
Only supple cells may stretch Growth, through making more cells. Or through stretching the cells. Or maybe through something that is a bit in between, what makes it possible for the cells to get even bigger. Endoreplication: the multiplication of the DNA without a cell division following. You would expect that the more DNA copiesContinue reading “Only supple cells may stretch”
Plant en Zo 