Effect of some growth regulators on some fruit characteristics and productivity of the Barhee date palm tree cultivar (<i>Phoenix dactylifera</i>L.)

Aljuburi, Hameed J.; Al-Masry, Hasan H.; Al-Muhanna, Saeed A.

doi:10.1051/fruits:2001133

Cited by 17 publications

(17 citation statements)

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“…The increase in bunch weight might be due an increase in fruit weight of date palm. The results are further supported by Shabana et al, (1976); Shabana et al (1998); Aljuburi et al, (2001); Aljuburi et al, (2003); Aboutalebi and Beharoznam, (2006) [18][19][20][21][22] who applied NAA at concentration of 150 and 200 ppm and found a significant increase in bunch weight of different date palm cultivars. Conclusion.…”

Section: Source Of Variationsupporting

confidence: 59%

Effect of Indole Acetic Acid (Iaa) on Fruit Drop and Fruit Quality of Date Palm Cultivars

Ahmed¹

2013

PAB

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I. Introduction Dates (Phoenix dactylifera L.) belong to family Palmaceae. In North Africa and Middle East it is important staple food having a vital role in their economy and social life. It is primarily cultivated for food and also for animal consumption [1, 2].Out of thousands of worldwide existing cultivars, very few are present in Pakisan, which include Dhakki, Gulistan, Shakri, Zaidi and Hillawi. Dhakki is the most popular among all other cultivars and after Dhakki cultivar Gulistan is becoming popular. Gulistan is the second most popular cultivar in Dera Ismail khan after Dhakki. Its origin is Panyala; a village of Dera Ismail khan. It is famous due to delicious taste. The main problem faced by the local farmers now a day is its fruit drop due to which huge amount of fruit loss occur during different stages as they drop down unhealthy. Nearly 60% fruit drop in cultivar Dhakki occurs from flowering to young developmental fruit stage .Effect of many auxins, hormones and growth regulators on various growth processes of plants has been studied. Growth regulating substances have also shown to prevent the fruit drop and accelerating the development process in date palm fruit. There are many growth regulators such as Indole Acetic Acid (IAA), Indole Butyric Acid (IBA), Naphthalene Acetic Acid (NAA), 2, 4-Dichlorophenoxyacetic Acid (2,4-D), 2,4,5-Trichlorophenoxy and Propionic Acid (2,4,5-TP) which have been used to prevent the fruit drop. The plant growth regulators act as a messenger and are needed in small amount at low concentration. In fact their site of action and biosynthesis are different [3]. IAA is predominantly

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Section: Source Of Variationsupporting

confidence: 59%

Effect of Indole Acetic Acid (Iaa) on Fruit Drop and Fruit Quality of Date Palm Cultivars

Ahmed¹

2013

PAB

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“…Also, the application of NAA at (40 and 60) mg·L -1 on 'Zahdi' dates at the late kimri stage increased fruit size and delayed ripening by one month [16]. Al-Juburi et al reported that NAA or a mixture of growth regulators (NAA, GA 3 and ethephone) application on 'Khenazi' dates, 20 days following pollination, delayed fruit ripening [18]. Also, the application of benzyladenine (BA) and other cytokinines effectively delayed ripening of apples and other fruits [19].…”

Section: Discussionmentioning

confidence: 99%

“…The application of NAA at (50 and 100) mg·L -1 on 'Sewy' dates at 10-30 days following the fruit set stage increased fruit drop and decreased yield but improved fruit weight and quality compared with control [17]. The application of NAA or a mixture of growth regulators (NAA, GA 3 and ethephone) on 'Khenazi' dates at 20 days following pollination delayed fruit ripening for one month, decreased dry matter, and increased fruit weight and yield per tree [18]. Also, the application of benzyladenine (BA) and other cytokinines effectively delayed ripening of apples and other fruits [19].…”

Section: Introductionmentioning

confidence: 99%

Quality characteristics of bisir ‘Barhee’ dates during cold storage as affected by postharvest dipping in gibberellic acid, naphthaleneacetic acid and benzyladenine

Al‐Qurashi¹,

Awad²

2011

Fruits

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Quality characteristics of bisir 'Barhee' dates during cold storage as affected by postharvest dipping in gibberellic acid, naphthaleneacetic acid and benzyladenine.Abstract -Introduction. There is a growing demand in the international market for excellent-quality dates of cultivars such as 'Barhee' that are consumed at the bisir stage. Materials and methods. The effects of GA 3 , BA and NAA postharvest dipping treatments at different concentrations on the quality characteristics of bisir 'Barhee' dates during cold storage were investigated. Results and discussion. The total soluble solids (TSS) concentration was lower in the BA-and NAA-treated fruit than in control fruit. Similarly, the GA 3 -treated fruit at 150 mg·L -1 contained a lower TSS concentration than control fruit. The GA 3 at 150 mg·L -1 , BA at 60 mg·L -1 and NAA at (100 and 150) mg·L -1 increased vitamin C concentration compared with other treatments. Acidity and total phenol concentrations were not affected by any of the treatments. The date soluble tannin concentration was higher than control fruit only in the dates treated with 20 mg BA·L -1 . The weight loss % was lower in the BA-treated fruit at (20 and 60) mg·L -1 compared with all other treatments, while GA 3 treatment at 50 mg·L -1 increased fruit weight loss % compared with control fruit. The percentage of dates at the rutab stage (index for fruit ripening) was lower for fruit treated with GA 3 than for control fruit. Also, the rutab stage % was lower for fruit treated with BA at 40 mg·L -1 and NAA at 150 mg·L -1 compared with control fruit. The TSS concentration decreased during storage from the initial day to day 20. However, there were no further decreases in the TSS concentration after (40 and 60) days of storage. The acidity concentration was slightly increased during storage. The vitamin C concentration increased until 40 days of storage, then a slight decrease occurred. The total phenol concentration decreased after (40 and 60) days of storage compared with the initial level. The soluble tannin concentration slightly increased at day 20 but sharply decreased after (40 and 60) days of storage compared with the initial level. Both weight loss and rutab stage % gradually increased during storage. There were significant interaction effects between growth regulators and storage period on TSS, vitamin C concentration, weight loss and rutab stage %.Saudi Arabia / Phoenix dactylifera / fruits / developmental stages / cold storage / quality / chemicophysical properties / ripening / maturity Qualité des dates 'Barhee' au stade bisir stockées au froid après trempage post récolte dans l'acide gibbérellique, l'acide naphtalène et la benzyladénine.Résumé -Introduction. Il existe une demande croissante dans le marché international pour des dates d'excellente qualité telles que le sont celles du cultivar 'Barhee' qui sont consommées au stade bisir. Matériel et méthodes. Les effets du traitement de dates 'Barhee' au stade bisir par trempage après récolte dans des solutions de GA 3 , BA et ANA à dif...

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“…Os caules múltiplos formam touceiras, que normalmente alcançam 4,5 m de altura e 2 a 3 cm de diâmetro e são cobertos por fibras emaranhadas (LORENZI, 1996). Desenvolve-se melhor em situação de leve sombreamento e apresenta coloração amarelada quando cultivada em pleno sol, na fase jovem (BLOSSFELD, 1965). Essa tolerância ao sombreamento é uma das características que faz que a espécie predomine na decoração de casas e escritórios.…”

Section: Introductionunclassified

“…Estudos sobre a aplicação de ácido giberélico em palmeiras vêm sendo realizados visando acelerar a germinação de sementes (BROSCHAT e DONSELMAN, 1988;MORA-AGUILAR et al, 2003), aumentar o florescimento e frutificação (EL-HODAIRI et al, 1992;ALJUBURI et al, 2001) e cultivo in vitro (SAMYN, 1993).…”

Section: Introductionunclassified

Efeito da aplicação de ácido giberélico no crescimento da palmeira-ráfia

Tavares¹,

Aguiar²,

Sado³

et al. 2007

Rev. Árvore

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A palmeira-ráfia possui grande importância econômica devido ao seu interesse comercial. É uma planta ornamental muito apreciada por sua beleza e utilização em ambiente interno, crescendo bem em locais com sombra e apresentando resistência à exposição solar. O valor econômico dessa planta está relacionado à altura e número de hastes. O objetivo do trabalho foi promover o crescimento da planta, através da aplicação do regulador de crescimento ácido giberélico (GA3). Mudas de palmeira-ráfia com aproximadamente um ano de idade foram aspergidas a cada 21 dias (quatro aplicações) com solução de ácido giberélico nas concentrações de 0; 75; 150; 225; e 300 mg.L-1. Os resultados indicaram que a aplicação do ácido giberélico foi eficiente na promoção do crescimento da espécie, sendo esse incremento significativo nas variáveis: comprimento dos pecíolos, lâminas foliares e altura da planta. Não se observou diferença no acúmulo de matéria seca ou fresca do pecíolo entre os tratamentos, e plantas do tratamento-controle foram superiores às dos tratamentos 225 e 300 mg L-1, nas variáveis diâmetro do colo e massa fresca e seca das raízes. Devido ao incremento na altura das mudas e à alteração da disposição das folhas da palmeira, a utilização do ácido giberélico pode ser recomendada para a produção de mudas de alta qualidade.

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Effect of some growth regulators on some fruit characteristics and productivity of the Barhee date palm tree cultivar (Phoenix dactyliferaL.)

Cited by 17 publications

References 6 publications

Effect of Indole Acetic Acid (Iaa) on Fruit Drop and Fruit Quality of Date Palm Cultivars

Effect of Indole Acetic Acid (Iaa) on Fruit Drop and Fruit Quality of Date Palm Cultivars

Quality characteristics of bisir ‘Barhee’ dates during cold storage as affected by postharvest dipping in gibberellic acid, naphthaleneacetic acid and benzyladenine

Efeito da aplicação de ácido giberélico no crescimento da palmeira-ráfia

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