Wood biochar as an amendment for enhanced growth of Phacelia tanacetifolia

2021 ◽  
Author(s):  
G. Borisova ◽  
M. Maleva ◽  
A. Atambire ◽  
D. Davydova ◽  
Tripti
Keyword(s):  
Phacelia Tanacetifolia

scholarly journals Observations of Phαceliα tαnαcetifoliα as a Food Plant for Honey Bees and other insects

2017 ◽  
Vol 12 ◽  
pp. 47 ◽  
Author(s):  
Andreas Thrasyvoulou ◽  
Basilis Tsirakoglou
Keyword(s):  
Plant Growth ◽  
Honey Bees ◽  
Food Plant ◽  
Bumble Bee ◽  
Solitary Bee ◽  
Seasonal Differences ◽  
Insect Visitors ◽  
Spring Maximum ◽  
Phacelia Tanacetifolia

Three consecutive sowings of Phacelia tanacetifolia Bentham (Hydrophyllaceae) were examined for plant growth and attractiveness to bees and other insect-visitors over a three years’ study. Plants that were sown in March flowered uniformly for periods of 24 to 40 days, while those sown in June and July had a non-uniform anthesis that was impossible to estimate. Plants sown in early August, remained vegetative throughout winter and flowered the following spring. Maximum visits of honey bees were observed between 10:00 h and 17:00 h. Most honey bees (>70%) collected nectar. Seasonal differences in the ratio nectar/pollen gatherers were noted. Two species of bumble bee (B. terrestris and B. lucorum) and 9 species of solitary bee visited Phacelia.

scholarly journals Role of the Seed Coat in Dormancy of Eucalyptuspauoiflora and E. Delegatensis Seeds

1967 ◽  
Vol 20 (6) ◽  
pp. 1237 ◽  
Author(s):  
EP Bachelard
Keyword(s):  
Gibberellic Acid ◽  
Seed Coat ◽  
Gaseous Exchange ◽  
Eucalypt Species ◽  
Phacelia Tanacetifolia

Gibberellic acid promotes the germination of dormant seeds of some eucalypt species including Eucalyptus pauciflora Sieb. and E. delegatensis R. T. Baker. It was suggested that gibberellic acid may stimulate germination by promoting enzymatic weakening of the seed coat (Bachelard 1967) as described for Phacelia tanacetifolia seeds (Chen and Thimann 1964). Previously, Grose (1963) suggested dormancy of of E. delegatensis seeds might be due to the seed coat limiting gaseous exchange.

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