Why does apple fruit drop prematurely?
All apple cultivars have some fruit drop ... photosynthate produced by leaves. This limits carbohydrate availability and can lead to pre-mature fruit drop. Some apple varieties are affected by hot temperatures more than others, particularly in the early ...
Which plants will survive droughts, climate change?
Scientists have debated for more than a century ... print edition. Why does a sunflower wilt and dessicate quickly when the soil dries, while the native chaparral shrubs of California survive long dry seasons with their evergreen leaves?
Bionic plants: Scientists give plants super powers
Some of the altered plants increased their photosynthetic activity by 30% compared with regular old plants. Others ... have a structure that blocks nanotubes from entering. Instead, Strano's team turned to the stomata -- small pores on the underside of ...
Squirmy Science: Which Soil Types Do Earthworms Like Best?
Which soils have the least? Why do you think some of the soils hold more earthworms than others ... be in the leaves. However, if there is organic matter (dead plant matter or animal matter, which they also eat) in the other soil types tested, the ...
How does colorblindness work?
Rather, people who are colorblind see some colors less intensely than others ... Types of Colorblindness Colorblindness occurs when one or more cone types are either completely absent or not working properly. Anomalous trichromacy occurs in people who have ...