Handbook of Plant and Crop Physiology

80 CHONG ET AL.

TABLE 2

Continued

Medium temperature (

C)

Plant

Posttransplant

Days to

Light or

Species

type

Germination

(night)

germinate

dark

Pretreatment

Remarks

Nick seed coat with

a file or soak inwater 24 hr

15–20 25–30 10–12 14–21 7–1416–20 7–18 25–30 14–28 7–10 21–40

Hunnemannia fumariifolia

Mexican tulip poppyPapaveraceae

Hypericum

spp.

St. John’s wortHypericaceae

Hypoestes phyllostachya

Polka dot plantAcanthaceae

Hyssopus officinalis

HyssopLabiatae

Iberis umbellataI. sempervirens

CandytuftCruciferae

Impatiens

spp.

Patience plantBalsaminaceae

Incarvillea delavayi

Hardy gloxiniaBignoniaceae

Inula

spp.

ElecampaneAsteraceae

Ipomoea tricolor

Morning glory vineConvolvulaceae

Iris

spp.

IrisIridaceae

P P A P AP A P P A P

21–24 21–23 21–24 20–24^21 16–18 21–24 13–18 20–24 21–28^22

15

10–15

15

10–15

(^10) 7–10
16–18 13–15 15–20 15–20 10–20
D
D or L
L L L
Keep surface of medium
moist at all times duringgermination.
Germination may be erratic.Use fresh seed. Germination
may be slow and erratic.