Growth and flowering responses of two phalaenopsis hybrids to 6-benzylaminopurine BAP

Thohirah L. A., . and Chen X. W., . (2008) Growth and flowering responses of two phalaenopsis hybrids to 6-benzylaminopurine BAP. [Proceedings Paper]

Two experiments were conducted under a rain-shelter in Ladang 2 Universiti Putra Malaysia to study the growth and flowering responses of Phalaenopsis hybrids to 6-Benzylaminopurine BAP. A randomized complete block design RCBD was used in the experiments with five concentrations of BAP applied as foliar spray with five replications. In Experiment 1 Phalaenopsis hybrid Phal. Hshin Camela x Phal. Min Ho Rose x Phal. Valentine Sun Prince x Phal. Tisufon Fire Bird were treated with 0 mg/L 150 mg/L. 200 mg/L. 250 mg/L and 300 mg/L of 6-benzylaminopurine BAP. Repeated BAP sprays given at day 30 and day 70 increased the percentage of plantlets keikis and flower spikes development. 300 mg/L of BAP treatment produced the greatest keiki with 43 of initiated buds developing into keikis. 150 mg/L of BAP had poor keiki development and produced 13 keikis. However keikis developed from 150 mg/L of BAP treatment produced healthy root system four months earlier and was found most effective in promoting flower spike from dormant buds where 26 of initiated buds developed into flower spikes. In Experiment 2 Phalaenopsis hybrid Dtps. Happy Valentine ;No 1; x Phal. Love Secret x Phal. Hawaiian Sunset x Phal. Maki Watanabe were treated with 0 mg/L. 250 mg/L 500 mg/L 750 mg/L and 1000 mg/L of BAP. Repeated sprays conducted in day 10 and day 20 at 250mg/LBAP increased the mean number of initiated buds from 0.4 buds per plant to 3.2 buds per plant. In contrast repeated sprays at 1000 mg/L BAP decreased the mean number of initiated buds from 1.4 buds per plant to 0.4 buds per plant. Higher BAP concentration produced higher percentage of abnormal spikes. Over 30 of abnormal spikes were obtained from 750 mg/L and 1000 mg/L BAP treated plant.

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Abstract

Two experiments were conducted under a rain-shelter in Ladang 2 Universiti Putra Malaysia to study the growth and flowering responses of Phalaenopsis hybrids to 6-Benzylaminopurine BAP. A randomized complete block design RCBD was used in the experiments with five concentrations of BAP applied as foliar spray with five replications. In Experiment 1 Phalaenopsis hybrid Phal. Hshin Camela x Phal. Min Ho Rose x Phal. Valentine Sun Prince x Phal. Tisufon Fire Bird were treated with 0 mg/L 150 mg/L. 200 mg/L. 250 mg/L and 300 mg/L of 6-benzylaminopurine BAP. Repeated BAP sprays given at day 30 and day 70 increased the percentage of plantlets keikis and flower spikes development. 300 mg/L of BAP treatment produced the greatest keiki with 43 of initiated buds developing into keikis. 150 mg/L of BAP had poor keiki development and produced 13 keikis. However keikis developed from 150 mg/L of BAP treatment produced healthy root system four months earlier and was found most effective in promoting flower spike from dormant buds where 26 of initiated buds developed into flower spikes. In Experiment 2 Phalaenopsis hybrid Dtps. Happy Valentine ;No 1; x Phal. Love Secret x Phal. Hawaiian Sunset x Phal. Maki Watanabe were treated with 0 mg/L. 250 mg/L 500 mg/L 750 mg/L and 1000 mg/L of BAP. Repeated sprays conducted in day 10 and day 20 at 250mg/LBAP increased the mean number of initiated buds from 0.4 buds per plant to 3.2 buds per plant. In contrast repeated sprays at 1000 mg/L BAP decreased the mean number of initiated buds from 1.4 buds per plant to 0.4 buds per plant. Higher BAP concentration produced higher percentage of abnormal spikes. Over 30 of abnormal spikes were obtained from 750 mg/L and 1000 mg/L BAP treated plant.

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Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. QK710.2 M239 2008 Call Number
AGROVOC Term:	Phalaenopsis
AGROVOC Term:	Hybrids
AGROVOC Term:	Plant growth regulators
AGROVOC Term:	Flowering
AGROVOC Term:	Plantlets seedlings
AGROVOC Term:	Cytokinins
AGROVOC Term:	Light
AGROVOC Term:	Sprays
AGROVOC Term:	Root systems
AGROVOC Term:	Buds
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:15
URI:	http://webagris.upm.edu.my/id/eprint/12761

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