Effects of Pinching Node Positions on the Growth and Flowering of Snapdragons (&lt;i&gt;Antirrhinum majus&lt;/i&gt; L.)

Inaba, Zentaro; Kato, Chiemi; Murakami, Satoru; Ishii, Chikako; Baba, Fujio; Horiuchi, Masami; Ohtsuka, Hisao

doi:10.2503/hrj.9.351

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…The number of leaves produced by these stems was also reduced, since they were formed at higher main stem nodes. A similar reduction in node numbers of branches formed at upper compared with lower main stem nodes was also noted by Faust (2006) for nemesia (Nemesia strumosa), and by Inaba et al (2010) for snapdragon (Antirrhinum majus). The stem length and leaf number decline were generally not accompanied by a decrease in flower diameter with later pinching (Tables 5 and 6).…”

Section: Resultssupporting

confidence: 78%

Response of Branching and Nonbranching Cut Flower Cultivars of Sunflower to Pinching and Planting Density

Wien¹

2017

hortte

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Pinching sunflower (Helianthus annuus) grown for cut flowers in the vegetative stage increases stem yield at least 3-fold. Four experiments were conducted to further investigate the cultivar response differences to pinching, to explore the response to planting density, and to examine the effect of the time of pinching. In the first two experiments, two branching and one nonbranching cultivar in 2011, and three branching cultivars in 2012, were grown at 6 × 6-, 9 × 9-, and 12 × 12-inch spacing and pinched at the six-leaf stage. Pinching led to stem yield increases, but reduced flower size and stem length. Combining closer spacing with pinching further decreased flower size, increased the number of stems, and the gross value of stems per unit area. At highest densities flowers were too small to be saleable. The inverse relationship of flower size to stem numbers per unit area held true across all cultivars in both years. The branching cultivar Starburst Lemon Aura was the most productive of the cultivars tested when pinched, yielding 15,744 stems/1000 ft2 at the closest spacing. In 2013 and 2015, delaying the time of pinching from the 6-leaf to the 10-leaf stage reduced stem production among three nonbranching cultivars from 2.8 to 1.8 stems/plant, compared with an increase from 4.2 to 5.1 stems/plant for the branching cultivar Goldrush. The difference in pinching response among cultivars in 2013 and 2015 may have been related to relative severity of septoria leaf blight (Septoria helianthi) that infected the lower leaves. The results of the four experiments confirmed the efficacy of pinching on productivity and value of sunflowers, with best results obtained when pinching was done at the six-leaf stage.

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Section: Resultssupporting

confidence: 78%

Response of Branching and Nonbranching Cut Flower Cultivars of Sunflower to Pinching and Planting Density

Wien¹

2017

hortte

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Planting Time Affects Vegetative and Reproductive Growth of Exotic Cultivars of Snapdragon (Antirrhinum majus)

Nawaz¹,

Shafique²,

Silva³

et al. 2017

IJAB

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Effect of Pinching Timing and Node Order on Flowering Season and Quality of <i>Veronica ornata</i> Monjuschko as Summer to Autumn Potted Flower

et al. 2022

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To develop potted flower production of Veronica ornata (Plantaginaceae), which is a useful genetic resource endemic to Japan, the effects of pinching season and node order on flowering time and quality were investigated. As the pinching season become later, the flowering become later in the experiment using the potted flower 'NG-1'. Also, as the pinching season become later, the accumulation of heat units until flowering was decreased. Regarding the potted flower quality at harvest, as the pinching season become later, the node number to flowering and the shoot length were decreased. In the case of a higher pinching position, flowering became earlier, the accumulative temperature to flowering was decreased, and the node number to flowering and shoot length were decreased. Flowering shoots were increased by pinching in all seasons and the node order in this experiment. Blind shoots were also increased by pinching at the end of June or with a low node order. These results indicate that the flowering time and quality can be controlled by means of pinching timing and the node order on potted flower production of V. ornata. Shipping of the potted flowers may be possible in early September for Respect for the Aged Day by means of pinching above 2 or 3 nodes from the base at the end of May.

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Effects of Pinching Node Positions on the Growth and Flowering of Snapdragons (<i>Antirrhinum majus</i> L.)

Cited by 3 publications

References 2 publications

Response of Branching and Nonbranching Cut Flower Cultivars of Sunflower to Pinching and Planting Density

Response of Branching and Nonbranching Cut Flower Cultivars of Sunflower to Pinching and Planting Density

Planting Time Affects Vegetative and Reproductive Growth of Exotic Cultivars of Snapdragon (Antirrhinum majus)

Effect of Pinching Timing and Node Order on Flowering Season and Quality of <i>Veronica ornata</i> Monjuschko as Summer to Autumn Potted Flower

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