Table 3 Time ± SE in days to leaf emergence of six Hakea species receiving nutrient supplements following the removal of cotyledons (days were calculated using the emergence of the cotyledons as day 0).

From: Small-seeded Hakea species tolerate cotyledon loss better than large-seeded congeners

Species

Treatment

 

Con+

(N + P)

%

(N + P + K)

%

P values

Days ± SE

Days ± SE

Days ± SE

Con+ vs (N + P)

Con+ vs (N + P + K)

H. francisiana

8 ± 1

—

 

20 ± 4

150

—

<0.001

H. petiolaris

5 ± 1

—

 

16 ± 4

220

—

<0.001

H. cucullata

12 ± 1

—

 

20 ± 3

67

—

<0.001

H. prostrata

14 ± 1

43 ± 5

207

22 ± 4

57

<0.001

<0.01

H. pandanicarpa

24 ± 2

65 ± 4

171

32 ± 5

33

<0.001

<0.05

H. platysperma

22 ± 2

62 ± 6

182

34 ± 6

55

<0.001

<0.01

  1. Percentages are treatment delay ratio relative to the control and are calculated as: (days of leaf emergence − days of leaf emergence of control)/days of leaf emergence of control. Cont+: control, seedlings with cotyledon intact; (N + P + K): solution contains nitrogen, phosphorus and potassium; (N + P): solution contains nitrogen and phosphorus. For details of the solution composition, refer to Table 5.
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