Natalia Toledo: The Black Flower and Other Zapotec Poems: Trans. Clare Sullivan Phoneme Media, 2015

2016 ◽  
Vol 90 (2) ◽  
pp. 13-13
Author(s):  
Daniel Simon
Keyword(s):  
Black Flower

scholarly journals LEAF BLACKENING IN PROTEA NERIIFOLIA R. BR.

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1087c-1087
Author(s):  
Robyn McConchie ◽  
N. Suzanne Robbins
Keyword(s):  
Exchange Rates ◽  
Carbohydrate Metabolism ◽  
Flower Development ◽  
Baton Rouge ◽  
Distilled Water ◽  
Nonstructural Carbohydrates ◽  
Leaf Quality ◽  
Flower Diameter ◽  
Number Of Leaves ◽  
Black Flower

Leaf blackening of Protea neriifolia is a common postharvest problem which renders flowers unsalable. Previous reports suggest that depletion of carbohydrates in source leaves caused by transfer of carbohydrates to the strong flower sink may be a major cause. Flowering stems of P. neriifolia were harvested in California under standard conditions and shipped to Baton Rouge, La. Upon arrival, the stems were re-cut (1 cm.), the number of leaves counted and the diameter and height of the flowers measured. Stems were transferred to 1 liter deionized distilled water containing 50 ppm hypochlorite, and 0.5% sucrose or no sucrose, and placed in a growth chamber (25°C) either with 12 hrs light (120 μmol/m2/s), or 24 hrs darkness. Number of leaves 10% black, flower diameter and height, and carbon exchange rates were measured every two days over a 16 day interval. Soluble and insoluble nonstructural carbohydrates were determined and assimilate export rate was estimated for each sampling day. Stems placed in the light maintained healthy foliage while those in the dark had 77-l00% of their leaves 10% black by day 8. Flower and leaf quality in the fight treatment were superior with addition of sucrose to the vase solution. Influence of treatments on carbohydrate metabolism in relation to leaf blackening and flower development will be discussed.

scholarly journals Quantitative Evaluation of the Contribution of Four Major Anthocyanins to Black Flower Coloring of Dahlia Petals

2016 ◽  
Vol 85 (4) ◽  
pp. 340-350 ◽  
Author(s):  
Ayumi Deguchi ◽  
Fumi Tatsuzawa ◽  
Munetaka Hosokawa ◽  
Motoaki Doi ◽  
Sho Ohno
Keyword(s):  
Quantitative Evaluation ◽  
Black Flower
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