Effect of different coloured shade nets on production and quality of cordyline

Gaurav, Abhay Kumar; Raju, D.V.S.; Janakiram, T.; Singh, Brahmjit; Jain, Ritu; Krishnan, S. Gopala

doi:10.56093/ijas.v86i7.59736

Cited by 4 publications

(1 citation statement)

References 10 publications

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“…We used red (I), yellow (II), blue (III), green (IV) and purple (V) filter films and a black (50% sunlight, VI) shading net (Figure 1a). Our results, that IV and V treatments were useful for increasing APn and the activities of several enzymes, are consistent with the previous work, where green filter film showed the highest photosynthetic activity in cordyline leaves compared to red, black and the control [21]. This is probably because green light penetrates deeper than red and blue light, which are absorbed by the top few layers.…”

Section: Discussionsupporting

confidence: 93%

Effect of Different Light Qualities on Essential Oil and Asarinin in Asarum heterotropoides Fr. Schmidt var. mandshuricum (Maxim.) Kitag

Wang,

Quan

et al. 2024

Horticulturae

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Asarum heterotropoides Fr. var. mandshuricum (Maxim.) is a perennial herb native to China. Its essential oil components and asarinin are health-promoting compounds. However, cultivation under natural light can affect the growth and secondary metabolite yield of this sciophyte. Adjustment of light irradiance may be beneficial in this respect. Here, we applied six types of filtered solar irradiance by using filter films of red (I), yellow (II), blue (III), green (IV), purple (V) and 50% sunlight (VI). We measured net photosynthetic rate (APn), activity of phenylpropanoid biosynthetic enzymes, asarinin content, and essential oil content and composition. Light quality treatments V and VI resulted in increased APn, enzyme activities, asarinin content and essential oil content. Samples harvested in September 2020 had relatively higher contents and enzyme activities compared to those harvested in July 2020. Elemicin, 2,5-dimethoxytoluene and methyleugenol accumulated at higher levels in response to light quality V. Light qualities III and IV showed promising results for several compounds. Overall, we conclude that controlling the light conditions in growing environments promotes the amount of asarinin and essential oil by regulating photosynthesis and the activities of phenylpropanoid biosynthetic enzymes.

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Section: Discussionsupporting

confidence: 93%

Effect of Different Light Qualities on Essential Oil and Asarinin in Asarum heterotropoides Fr. Schmidt var. mandshuricum (Maxim.) Kitag

Wang,

Quan

et al. 2024

Horticulturae

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Cultivation under photoselective shade nets alters the morphology and physiology of Begonia Megawatt varieties

Oliveira,

Sabino,

Sillmann

et al. 2024

Ciênc. agrotec.

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Light intensity and quality play a key role in plant growth and development. Photoselective shade nets control light quality, temperature, and humidity, improving plant growth, color, and flowering, and resulting in better commercial quality of ornamental plants. This study aimed to assess the growth and quality parameters of two varieties of Begonia Megawatt plants cultivated under photoselective shade nets. The experiment followed a randomized block design with subdivided plots. The plots included blue, red, and black shade nets and a control group without shading. The sub-plots were Begonia Megawatt varieties ‘Pink Green’ and ‘Red Bronze’. We evaluated temperature, relative humidity, illuminance level, plant growth and flowering parameters, leaf chlorophyll and flavonoids, and colorimetric indices of tepals. Begonia ‘Red Bronze’ had greater height and root mass, while ‘Pink Green’ had more inflorescences. The blue photoselective net increased leaf number by 14%, and the red photoselective net enhanced inflorescence dry mass by 30.6%. The use of photoselective shade nets contributed to optimal conditions for plant growth, reducing light intensity by 28% and lowering maximum temperatures, resulting in potted plants with improved commercial quality. The use of blue and red shade nets is recommended for potted begonias.

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Differential performance of Dianella tasmanica and Pleomele reflexa under coloured shade nets

Singh,

Khyber,

Shalini Jhanji

et al. 2023

J. Hortic. Sci.

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Cut greens are emerging as an important constituent of the floricultural industry as they add freshness and colour to floral designs. An experiment was conducted to evaluate the effect of different coloured shade nets (black, blue, green, red, white and no shade) at 50% shade intensity on growth and quality parameters of Dianella tasmanica and Pleomele reflexa. Both species significantly responded to the change in colour of shade nets. In D. tasmanica, maximum plant height (85.66 cm), stem diameter (8.63 mm) and leaf length (68.33 cm) were recorded under red shade net, while, plant spread (63.03 cm) and leaf breadth (4.06 cm) under black shade net, however, leaf thickness (0.57 cm) and vase life (24.33 days) under white shade net. In P. reflexa, maximum plant height (63.66 cm), stem diameter (9.76 mm), leaf length (17.50 cm), leaf thickness (0.93 cm) and SPAD index (60.10) were recorded under red shade net, whereas, plant spread (36.34 cm) and leaf breadth (3.00 cm) under black shade net, and vase life (25.66 days) under white shade net. Thus, red coloured shade nets could be preferred commercially for better performance of D. tasmanica and P. reflexa.

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Effect of different coloured shade nets on production and quality of cordyline

Cited by 4 publications

References 10 publications

Effect of Different Light Qualities on Essential Oil and Asarinin in Asarum heterotropoides Fr. Schmidt var. mandshuricum (Maxim.) Kitag

Effect of Different Light Qualities on Essential Oil and Asarinin in Asarum heterotropoides Fr. Schmidt var. mandshuricum (Maxim.) Kitag

Cultivation under photoselective shade nets alters the morphology and physiology of Begonia Megawatt varieties

Differential performance of Dianella tasmanica and Pleomele reflexa under coloured shade nets

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