Managing the Growth and Flower Production of Zinnia (Zinnia elegans) through Benzyle Amino Purine (BAP) Application and Pinching

Ali, Sajid; Basıt, Abdul; Khattak, Abdul Mateen; Shah, Syed Tanveer; Ullah, Izhar; Khan, Noor; Ahmad, Imran; Rauf, Kamran; Khan, Salman; Ullah, Irfan; Ahmad, Intizar

doi:10.17582/journal.pjar/2021/34.1.29.40

Cited by 4 publications

(3 citation statements)

References 26 publications

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“…By removing the shoot apex auxins concentration reduces that hampers upward plant growth and the lateral shoots trigger to grow as a result the number of branches as well as the number of leaves increased (Habiba et al, 2012). The current finding is also in line with those of Ali et al (2021), Ona et al (2015) and Sharaf-Eldien et al (2017), who documented that removal of the shoot apex in several ornamental plants increased the number of leaves plant -1 .…”

Section: A Assessment Of Vegetative Parameterssupporting

confidence: 88%

“…Removal of shoot apex breaks apical dominance due to reduction in auxin levels and allows the lateral shoots to develop and grow like compact flourishing plants with a better flowering and fruiting yield (Müller & Leyser, 2011). Furthermore, due to shoot apex removal the content of cytokinins also improve which act as long-distance signals in regulating the development of secondary growth in stems (Ali et al, 2021). Previously it was reported that the yield attributes depend upon the number of branches that bear flowers which can be manipulated by inhibiting the vertical growth and encouraging lateral shoots of plants with the help of pinching (Baskaran & Abirami, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Effects of Shoot Apex Removal on Growth and Yield Attributes of Cotton

Awan¹,

Saleem²,

Khan³

et al. 2022

EJBIO

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The current study was designed to investigate the effect of shoot apex removal on the growth and yield attributes of the cotton crop. A field experiment was conducted in the cotton-growing season (2020-2021) at Muzaffargarh, district of South Punjab. The field trial was comprised of two acres of land where one acre of land was considered as treatment (cotton plants with shoot apex removal) and the other acre of land served as a control plot (cotton plants without shoot apex removal). The data were collected fortnightly (1st, 2nd, 3rd, 4th and 5th times) from the randomly selected cotton plants (n=50) from the treated and control plot after fifteen days of treatment (shoot apex removal). The data were comprised of vegetative parameters (i.e., plant height, no. of nodes and leaves), reproductive parameters (i.e., no. of squares, flowers, immature/mature bolls, the opening of bolls and boll weight) and cotton fiber quality parameters [i.e., fiber length, strength, finesse and GOT (ginning outturn)]. Descriptive analysis was employed on all data recorded through an independent two-sample t-test to evaluate the positive effect of shoot apex removal in cotton production. Our results indicated that after removing the top shoot of the cotton plants, greater effects had started to occur in the treated plants such as vegetative growth had become significantly (at p≤0.001) slow down and reproductive growth considerably (at p≤0.01) enhanced. Besides, removal of the shoot apex in cotton plants has developed resistance against the sucking pest i.e., pink bollworm infestation significantly reduced by 50% and whitefly population has lessened by 11%. The results also indicated that this treatment significantly augmented (at p≤0.01) the boll weight by 12%, as well as improved the cotton fiber length, strength and fineness by 7% as compared to the normal cotton plant. It was concluded that shoot apex removal caused cotton plants to produce numerous lateral shoots to develop more branches to carry more cotton bolls on them eventually significantly enhancing the cotton yield by 13% (18 monds acre-1) as compared to the control plot. It can be suggested that the practical implementation of removing the shoot apex of the cotton plant would act as a promising technique to enhance the cotton yield.

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Section: A Assessment Of Vegetative Parameterssupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Effects of Shoot Apex Removal on Growth and Yield Attributes of Cotton

Awan¹,

Saleem²,

Khan³

et al. 2022

EJBIO

View full text Add to dashboard Cite

show abstract

“…Unfortunately, in urban environment, ornamental plants are significantly affected by biotic and abiotic stresses. Therefore, both growing and planting seedlings in landscape compositions, a number of specialists (Kuzovkova et al, 2015;Zeb et al, 2017;Sedaghathoor and Zakibakhsh-Mohammadi, 2019;Karimi et al, 2019;Ali et al, 2021;Mohamed et al, 2022) recommend to use growth regulators in order to neutralize the effect of unfavorable stress factors in the juvenile period of plant development. Having been transplanted from a greenhouse, the dug seedlings are significantly stressed.…”

Section: Introductionmentioning

confidence: 99%

Growth regulators and mineral fertilizers effect on morphometric indicators and decorative qualities of Zinnia elegans varieties

Smolin,

Ivoilov,

Volgin

et al. 2023

Ornam. Hortic.

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Growth regulators had a significant effect on the morphometric parameters of graceful zinnia, among which the most effective was Epin-extra. Being treated twice with epibrassinolide, zinnia plants had a more saturated color range. Zircon (a drug from the group of hydroxycinnamic acids), as it turned out, had a lesser effect on morphometric parameters than Epin-extra. The Mechta (in English translation as Dream). Further in the text this name will be used) variety turned out to be more resistant to unfavorable weather conditions and in comparison with the Oranzhevyy korol’ (in English translation as Orange King). Further in the text this name will be used variety, it more easily tolerated recurrent cold and droughts during the growing season. In addition, the Dream variety turned out to be more even in height and in the formation of lateral flowering shoots, which is important to create ornamental flower compositions. The use of growth regulators and mineral fertilizers increased zinnia visual perception. Among the varieties, the variety Dream had the most preferable decorative qualities.

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Appropriate Growth Stages for Tip-clipping in Perilla (<i>Perilla frutescens</i> (L.) Briton var. frutescens) Grown in Tokachi Region

MIYAZAKI,

SEKIGUCHI,

TAKAGI

et al. 2024

Jpn. J. Crop Sci.

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To understand the effectiveness of tip-clipping in the production of perilla (Perilla frutescens (L.) Briton var. frutescens) grown in the Tokachi region, we compared the growth and yield of plants receiving tip-clipping treatment at different growth stages. Tip-clipping was performed on a local variety, Hokkaido-zairai, at the eight-leaf stage (V8), ten-leaf stage (V10), or flower bud formation stage (R). Plants without tip-clipping treatment were grown in the control plot. The plants in the V8 and V10 plots had fewer primary branches, but more inflorescences than those in the control plot. The total number of florets in the V10 plot was similar to that in the control plot. This may be due to the disruption of apical dominance or increase in allocation of resources to the branches. The plants in the V8 and V10 plots were shorter, resulting in a lower degree of lodging than those in the control plot. On the other hand, the plant form and degree of lodging in the R plot were similar to those in the control plot. Tip-clipping did not show a significant effect on the yields of grain and oil. However, the yield may be reduced due to harvest loss in the control and R plot that showed severe lodging. Our results indicated the effectiveness of tip-clipping for stabilizing perilla production in the Tokachi region, and the appropriate growth stage for tip-clipping was suggested to be the ten-leaf stage.

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Managing the Growth and Flower Production of Zinnia (Zinnia elegans) through Benzyle Amino Purine (BAP) Application and Pinching

Cited by 4 publications

References 26 publications

Effects of Shoot Apex Removal on Growth and Yield Attributes of Cotton

Effects of Shoot Apex Removal on Growth and Yield Attributes of Cotton

Growth regulators and mineral fertilizers effect on morphometric indicators and decorative qualities of Zinnia elegans varieties

Appropriate Growth Stages for Tip-clipping in Perilla (<i>Perilla frutescens</i> (L.) Briton var. frutescens) Grown in Tokachi Region

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