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Table 2 The amount of seeds in mature capsule after hand pollination of stored pollinia at four temperatures

From: Phalaenopsis pollinia storage at sub-zero temperature and its pollen viability assessment

 

Storage weeks

0

4

8

16

24

32

40

48

56

64

72

80

88

96

RT

+++a

++

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

4 °C

+++

+++

+++

+++

++

++

+

ND

ND

ND

ND

ND

− 20 °C

+++

+++

++

+++

+++

+++

++

+

++

+

+

+

+

− 80 °C

+++

+++

++

++

++

++

++

+

+

+

+

+

+

+

  1. RT, room temperature
  2. aND, not determined (the capsules failed to develop for 7 days after pollination); seeds content per capsule: lacking (−), low (+), abundant (++), and very abundant (+++), respectively