scholarly journals Daminozide reduces red color intensity in herbaceous peony (Paeonia lactiflora Pall.) flowers by inhibiting the expression of flavonoid biosynthetic genes

3 Biotech ◽  
2018 ◽  
Vol 8 (2) ◽  
Author(s):  
Yuhan Tang ◽  
Daqiu Zhao ◽  
Jun Tao
Keyword(s):  
Paeonia Lactiflora ◽  
Color Intensity ◽  
Biosynthetic Genes ◽  
Herbaceous Peony ◽  
Red Color

Nano-silver modifies the vase life of cut herbaceous peony (Paeonia lactiflora Pall.) flowers

PROTOPLASMA ◽  
2018 ◽  
Vol 255 (4) ◽  
pp. 1001-1013 ◽  
Author(s):  
Daqiu Zhao ◽  
Menglin Cheng ◽  
Wenhui Tang ◽  
Ding Liu ◽  
Siyu Zhou ◽  
...  
Keyword(s):  
Vase Life ◽  
Paeonia Lactiflora ◽  
Herbaceous Peony ◽  
Nano Silver

scholarly journals Alternatives to increase the red color of the peel in ‘Daiane’ and ‘Venice’ apples

2019 ◽  
Vol 41 (2) ◽  
Author(s):  
Cristhian Leonardo Fenili ◽  
José Luiz Petri ◽  
Cristiano André Steffens ◽  
Mariuccia Schlichting de Martin ◽  
Cassandro Vidal Talamini do Amarante ◽  
...  
Keyword(s):  
Ethylene Production ◽  
Anthocyanin Content ◽  
Background Color ◽  
Color Intensity ◽  
Foliar Fertilizer ◽  
Red Color ◽  
Ethephon Treatment ◽  
Apple Peels ◽  
Red Coloration

Abstract This study aimed evaluate the effect of biostimulants, foliar fertilizers and ethephon on the red color in the peel of ‘Daiane’ and ‘Venice’ apples. The experiments were conducted in Caçador/SC, during 2015/2016 and 2016/2017 seasons. In 2015/2016, the treatments were: Control; Biostimulant I; Foliar fertilizer I + Foliar fertilizer II; Biostimulant II and KCl. In 2016/2017, was included the Ethephon treatment. In 2016/2017, Biostimulant I, Foliar fertilizer I + Foliar fertilizer II and Biostimulant II increased the percentage of ‘Daiane’ and ‘Venice’ apples with greater red peel cover, without affecting the quality and maturity of the fruits. In both cultivars, ethephon was treatment that promoted a higher percentage of apples in the category above 80% of red color. Ethephon increased red color intensity of ‘Daiane’ and ‘Venice’ apples, anthocyanin content, starch index, ethylene production and yellowing of background color of the fruits. The red coloration of ‘Venice’ apple peels is enhanced with ethephon, Biostimulant I and Foliar fertilizer I + Foliar fertilizer II and Daiane apples with ethephon, Foliar fertilizer I + Foliar fertilizer II and Biostimulant II.

scholarly journals Chilling Requirement Validation and Physiological and Molecular Responses of the Bud Endodormancy Release in Paeonia lactiflora ‘Meiju’

2021 ◽  
Vol 22 (16) ◽  
pp. 8382
Author(s):  
Runlong Zhang ◽  
Xiaobin Wang ◽  
Xiaohua Shi ◽  
Lingmei Shao ◽  
Tong Xu ◽  
...  
Keyword(s):  
Southern China ◽  
Early Stage ◽  
Northern China ◽  
Morphological Observation ◽  
Release Mechanism ◽  
Regulation Mechanism ◽  
Paeonia Lactiflora ◽  
Poor Growth ◽  
Herbaceous Peony ◽  
Cultivar Screening

The introduction of herbaceous peony (Paeonia lactiflora Pall.) in low-latitude areas is of great significance to expand the landscape application of this world-famous ornamental. With the hazards of climate warming, warm winters occurs frequently, which makes many excellent northern herbaceous peony cultivars unable to meet their chilling requirements (CR) and leads to their poor growth and flowering in southern China. Exploring the endodormancy release mechanism of underground buds is crucial for improving low-CR cultivar screening and breeding. A systematic study was conducted on P. lactiflora ‘Meiju’, a screened cultivar with a typical low-CR trait introduced from northern China, at the morphological, physiological and molecular levels. The CR value of ‘Meiju’ was further verified as 677.5 CUs based on the UT model and morphological observation. As a kind of signal transducer, reactive oxygen species (ROS) released a signal to enter dormancy, which led to corresponding changes in carbohydrate and hormone metabolism in buds, thus promoting underground buds to acquire strong cold resistance and enter endodormancy. The expression of important genes related to ABA metabolism, such as NCED3, PP2C, CBF4 and ABF2, reached peaks at the critical stage of endodormancy release (9 January) and then decreased rapidly; the expression of the GA2ox8 gene related to GA synthesis increased significantly in the early stage of endodormancy release and decreased rapidly after the release of ecodormancy (23 January). Cytological observation showed that the period when the sugar and starch contents decreased and the ABA/GA ratio decreased was when ‘Meiju’ bud endodormancy was released. This study reveals the endodormancy regulation mechanism of ‘Meiju’ buds with the low-CR trait, which lays a theoretical foundation for breeding new herbaceous peony cultivars with the low-CR trait.

Sign in / Sign up

Export Citation Format

Share Document