Effects of Some Plant Growth Regulators on Leaves Content of Macronutrients in Mango 'Haden'

Leal, Freddy; Sergent, E.; Anez, M.

doi:10.17660/actahortic.2000.509.71

Cited by 3 publications

(2 citation statements)

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“…Some previous studies also reported a nonsignificant effect of PBZ on the macronutrient concentration of leaves (Salazar-Gracia & VazquezValdivia 1997;Leal et al 2000) whereas Werner (1993) reported increases of N, Ca, and Mg resulting from PBZ application. Werner also reported an increase of Mn and Zn but reductions of Cu and no effect on Fe.…”

Section: Discussionmentioning

confidence: 84%

Paclobutrazol suppressed vegetative growth and improved yield as well as fruit quality of ‘Tommy Atkins’ mango(Mangifera indica)in Ethiopia

Yeshitela¹,

Robbertse

Stassen

2004

New Zealand Journal of Crop and Horticultural Science

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The effects of paclobutrazol on the vegetative growth, reproductive development, total nonstructural carbohydrate of the shoots, and nutrient mobilisation to the leaves of 'Tommy Atkins' mango (Mangifera indica) trees grown in the Rift Valley of Ethiopia were evaluated during the 2002/03 season. The trees used were characterised by excessive vegetative growth, erratic flowering, and fruiting with declining productivity that validated the evaluation of paclobutrazol. Uniform trees were selected for a randomised complete block design experiment with two methods (soil and spraying) and four rates of paclobutrazol (0, 2.75, 5.50, 8.25 g a.i. per tree) in factorial combinations. There were three blocks and three trees per plot for each treatment. The results showed that application of paclobutrazol at rates of 5.50 and 8.25 g a.i. per tree both as a soil drench and spray applications were effective in suppressing vegetative growth compared with the control. Consequently, the trees from these treatments had higher total non-structural carbohydrate in their shoots before flowering. Compared with the control, trees treated with paclobutrazol had higher results for percentages of shoots flowering, number of panicles produced, percentages of hermaphrodite flowers, yield as well as quality of the fruit. Applications of paclobutrazol did not affect the leaf macronutrient content levels analysed (N, P, K, and Ca), and with the exception of manganese, the micronutrient (Cu, Zn, and Fe) levels of the treated tree's leaves were significantly higher than the control.

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Section: Discussionmentioning

confidence: 84%

Paclobutrazol suppressed vegetative growth and improved yield as well as fruit quality of ‘Tommy Atkins’ mango(Mangifera indica)in Ethiopia

Yeshitela¹,

Robbertse

Stassen

2004

New Zealand Journal of Crop and Horticultural Science

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“…PBZ had no marked influence on total N, P, K, Ca and Mg contents of the leaf after 10 months from pruning (Table 2). Earlier, lack of PBZ effect on leaf macronutrient status was also obtained in apple (Wieland and Wample, 1985) and mango (Leal 2000;Yeshitela 2004). et al…”

Section: Ramos Andmentioning

confidence: 72%

Effect of Paclobutrazol Treatment on Some Leaf Physiological and Biochemical Characteristics of Rejuvenated Coffee (Coffea arabica L.) Trees

Ramos¹

2016

ATR

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Rejuvenation pruning has been proven effective in bringing back vigor and productivity of old coffee trees. The effectiveness of the present rejuvenation techniques however could be probably enhanced by the application of tree growth regulators with known reinvigorating or tree health enhancing effect such as Paclobutrazol but has not been tried so far. The present study aimed to evaluate some physiological and biochemical responses of the rejuvenated coffee trees to timing and level of PBZ application prior to cutting. Plants applied with PBZ 2 months prior to pruning had higher leaf internal CO concentration compared to those applied 1 month prior to 2 pruning. Net photosynthesis, transpiration rate, PAR/LAI, chlorophyll content, and leaf N, P, K, Ca and Mg contents did not differ with time of PBZ treatment. Application of 0.5-1.0 g a.i. PBZ per meter canopy span significantly increased transpiration rate, internal COconcentration and 2 chlorophyll content but did not affect the rate of photosynthesis, PAR/LAI, leaf N, P, K, Ca and Mg contents.

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Effect of paclobutrazol soil drenching on flowering of ‘Mahachanok’ cultivar

Muengkaew¹,

Chaiprasart²

2016

Acta Hortic.

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Effects of Some Plant Growth Regulators on Leaves Content of Macronutrients in Mango 'Haden'

Cited by 3 publications

References 0 publications

Paclobutrazol suppressed vegetative growth and improved yield as well as fruit quality of ‘Tommy Atkins’ mango(Mangifera indica)in Ethiopia

Paclobutrazol suppressed vegetative growth and improved yield as well as fruit quality of ‘Tommy Atkins’ mango(Mangifera indica)in Ethiopia

Effect of Paclobutrazol Treatment on Some Leaf Physiological and Biochemical Characteristics of Rejuvenated Coffee (Coffea arabica L.) Trees

Effect of paclobutrazol soil drenching on flowering of ‘Mahachanok’ cultivar

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