Effect of Plant Growth Regulators on Corm Production and Vase Life in Gladiolus

Influence of plant growth regulator sprays on corm production and post-harvest life of two gladiolus cultivars, Darshan and Dhiraj, was investigated for two consecutive years, 2008-09 and 2009-10. Growth regulators, viz., gibberellic acid (100 and 150ppm), tri-iodo benzoic acid (TIBA) (50 and 100ppm...

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Autores principales:	T Padmalatha, G Satyanarayana Reddy, R Chandrasekhar
Formato:	article
Lenguaje:	EN
Publicado:	Society for Promotion of Horticulture - Indian Institute of Horticultural Research 2015
Materias:	gladiolus corm vase-life ga3 brassinosteroids cppu Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/e9d588e773594a4382649aa342222fad
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spelling	oai:doaj.org-article:e9d588e773594a4382649aa342222fad2021-12-02T08:01:04ZEffect of Plant Growth Regulators on Corm Production and Vase Life in Gladiolus0973-354X2582-4899https://doaj.org/article/e9d588e773594a4382649aa342222fad2015-12-01T00:00:00Zhttps://jhs.iihr.res.in/index.php/jhs/article/view/133https://doaj.org/toc/0973-354Xhttps://doaj.org/toc/2582-4899Influence of plant growth regulator sprays on corm production and post-harvest life of two gladiolus cultivars, Darshan and Dhiraj, was investigated for two consecutive years, 2008-09 and 2009-10. Growth regulators, viz., gibberellic acid (100 and 150ppm), tri-iodo benzoic acid (TIBA) (50 and 100ppm), 2-chloro, 4-pyridyl phenyl urea (CPPU) (2.5 and 5ppm) and brassinosteroid (BR) (5 and 10ppm) were sprayed at the 3rd and 6thleaf stage. Cv. Darshan recorded maximum number of large cormels per plant and cormel weight, while, cv. Dhiraj recorded maximum number of small cormels per plant in treatments of pre-harvest foliar sprays with plant growth regulators. Foliar sprays of BR (10ppm) and GA3 (150ppm) significantly increased number of corms produced per plant, corm size, corm weight, and propagation coefficient. Number of large cormels and total number of cormels per plant were significantly higher in BR (10ppm), followed by TIBA (100ppm). BR (10ppm) and TIBA (100ppm) produced maximum number of small cormels per plant. Weight of cormels per plant was maximum in BR (10ppm) and GA3 (150ppm). Post-harvest studies revealed that cv. Darshan recorded maximum diameter of second fully-opened floret and higher vase-life than cv. Dhiraj with pre-harvest foliar spray of plant growth regulators. Pre-harvest foliar spray of GA3 (150ppm), BR (10ppm) and CPPU (5ppm) induced earliest first-floret opening and recorded maximum value for number-of-floretsopen- at-a-time per spike, diameter of second fully-opened floret, and vase-life. Foliar spray of BR (10ppm) and GA3 (150ppm) at 3rd and 6th leaf stage can be recommended for large-scale multiplication of quality planting material and longer vase-life of flower spikes, respectively, in gladiolus.T PadmalathaG Satyanarayana ReddyR ChandrasekharSociety for Promotion of Horticulture - Indian Institute of Horticultural Researcharticlegladioluscormvase-lifega3brassinosteroidscppuPlant cultureSB1-1110ENJournal of Horticultural Sciences, Vol 10, Iss 2, Pp 220-225 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	gladiolus corm vase-life ga3 brassinosteroids cppu Plant culture SB1-1110
spellingShingle	gladiolus corm vase-life ga3 brassinosteroids cppu Plant culture SB1-1110 T Padmalatha G Satyanarayana Reddy R Chandrasekhar Effect of Plant Growth Regulators on Corm Production and Vase Life in Gladiolus
description	Influence of plant growth regulator sprays on corm production and post-harvest life of two gladiolus cultivars, Darshan and Dhiraj, was investigated for two consecutive years, 2008-09 and 2009-10. Growth regulators, viz., gibberellic acid (100 and 150ppm), tri-iodo benzoic acid (TIBA) (50 and 100ppm), 2-chloro, 4-pyridyl phenyl urea (CPPU) (2.5 and 5ppm) and brassinosteroid (BR) (5 and 10ppm) were sprayed at the 3rd and 6thleaf stage. Cv. Darshan recorded maximum number of large cormels per plant and cormel weight, while, cv. Dhiraj recorded maximum number of small cormels per plant in treatments of pre-harvest foliar sprays with plant growth regulators. Foliar sprays of BR (10ppm) and GA3 (150ppm) significantly increased number of corms produced per plant, corm size, corm weight, and propagation coefficient. Number of large cormels and total number of cormels per plant were significantly higher in BR (10ppm), followed by TIBA (100ppm). BR (10ppm) and TIBA (100ppm) produced maximum number of small cormels per plant. Weight of cormels per plant was maximum in BR (10ppm) and GA3 (150ppm). Post-harvest studies revealed that cv. Darshan recorded maximum diameter of second fully-opened floret and higher vase-life than cv. Dhiraj with pre-harvest foliar spray of plant growth regulators. Pre-harvest foliar spray of GA3 (150ppm), BR (10ppm) and CPPU (5ppm) induced earliest first-floret opening and recorded maximum value for number-of-floretsopen- at-a-time per spike, diameter of second fully-opened floret, and vase-life. Foliar spray of BR (10ppm) and GA3 (150ppm) at 3rd and 6th leaf stage can be recommended for large-scale multiplication of quality planting material and longer vase-life of flower spikes, respectively, in gladiolus.
format	article
author	T Padmalatha G Satyanarayana Reddy R Chandrasekhar
author_facet	T Padmalatha G Satyanarayana Reddy R Chandrasekhar
author_sort	T Padmalatha
title	Effect of Plant Growth Regulators on Corm Production and Vase Life in Gladiolus
title_short	Effect of Plant Growth Regulators on Corm Production and Vase Life in Gladiolus
title_full	Effect of Plant Growth Regulators on Corm Production and Vase Life in Gladiolus
title_fullStr	Effect of Plant Growth Regulators on Corm Production and Vase Life in Gladiolus
title_full_unstemmed	Effect of Plant Growth Regulators on Corm Production and Vase Life in Gladiolus
title_sort	effect of plant growth regulators on corm production and vase life in gladiolus
publisher	Society for Promotion of Horticulture - Indian Institute of Horticultural Research
publishDate	2015
url	https://doaj.org/article/e9d588e773594a4382649aa342222fad
work_keys_str_mv	AT tpadmalatha effectofplantgrowthregulatorsoncormproductionandvaselifeingladiolus AT gsatyanarayanareddy effectofplantgrowthregulatorsoncormproductionandvaselifeingladiolus AT rchandrasekhar effectofplantgrowthregulatorsoncormproductionandvaselifeingladiolus
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Effect of Plant Growth Regulators on Corm Production and Vase Life in Gladiolus

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