During times of water stress, this hormone is responsible for increasing root growth (and thus water and ion uptake in the roots), while slightly inhibiting shoot growth.

Which hormone induces the aleurone layer in grain seeds to produce amylase, an enzyme which hydrolyzes starch of the endosperm?

What term is used for a dark-grown seedling having increased stem elongation, poor leaf development (apical hook for dicot), and pale color due to lack of chloroplast maturation?

Which of the following photoreceptors are responsible for the red/far-red photoreversibility of light sensitive lettuce seed germination?

The terms listed below include some environmental variables that are cues important in controlling flowering in many species.  Select the FIRST listed environmental cue that is important in controlling FLOWERING.

There are two main mechanisms by which phytochrome effects occur.  Which of the following is NOT one of those two mechanisms?

This hormone can stimulate bolting (sometimes flowering) in long-day plants.

The list below includes several reasons why high levels of salinity are INDIRECTLY injurious to most plants. Choose the SECOND of the two options in the list that indicates INDIRECT reasons why saline soils are harmful to most plants.

These hormones shorten the cell cycle.

This hormone breaks dormancy in VARIOUS tissues (BOTH seed AND bud tissues).