Effect of Pollination Frequency and Pollen Concentration on Yield and Fruit Characteristics of Mechanically Pollinated Date Palm Trees (Phoenix dactyliferavar. Khalas)

Haffar, I.; Juburi, H. Al; Ahmed, Mo’ath

doi:10.1006/jaer.1997.0171

Cited by 9 publications

(6 citation statements)

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“…These results are in harmony with the results of Haffer et al (1997), Khayyat et al (2007) Iqbal et al (2010), Abdalla et al (2011) andEl-Salhy et al (2012).…”

Section: B-chemical Characteristicssupporting

confidence: 89%

“…Mixing pollen grains with various carriers and nutrient minerals were beneficial in establishing mechanical pollination and obtaining an economical yield with good fruit quality and enhancing pollination efficiency. Mixing pollen grains with various carriers is an untraditional method in date palm pollination which combines both mechanical pollination and fruit thinning (ElKassas and Mahmoud, 1986;Mostafa, 1994;Haffer et al, 1997;ElSharabasy et al, 2003;El-Salhy et al, 2007;El-Salhy et al, 2010;Iqbal et al, 2010 andEl-Salhy, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Effect of Pollination and Thinning Methods on Yield and Fruit Quality of Saidy Date Palms

2016

AJAS

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The effect of fruit thinning and pollen grains dusting as a pollination methods of Saidy date palm which combines of both mechanical pollination and fruit thinning were studied during 2013, 2014 and 2015 seasons. Pollen mixed with starch in ratio of 1:1, 3, 5, 7 and 9 as 50, 25, 17, 12.5 and 10% active ingredients. Fruit thinning was carried out by 15, 30 and 45% removal of setting fruits.The obtained results indicated that there were reduction in the percentage of fruit retention and fruit weight/bunch as the pollen grains concentration was lower or fruit thinning was done. There were no significant differences in fruit weight/bunch due to dusting pollen grains powder at 50 or 25% compared to control. On other hand, there was an improve in the fruit quality in terms of increasing the fruit weight, pulp %, total soluble solids and sugar contents and decreasing the fruit moisture content was observed with reduction of pollen grain concentrations and doing fruit thinning. Furthermore, there were no significant difference due to pollination by 17% pollen grains and removing 15% of fruit setting, as well as 12.5% pollen grains and 30% removal of setting fruit.It could be concluded that pollination by 12.5% pollen grains powder or removing 30% of fruit setting could be a considerable yield with good fruit quality. In addition, dusting pollen grains powder at 12.5% resulted in combined of mechanical pollination and fruit thinning effects.

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“…These results are in harmony with the results of Haffer et al (1997), Khayyat et al (2007) Iqbal et al (2010), Abdalla et al (2011) andEl-Salhy et al (2012).…”

Section: B-chemical Characteristicssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Effect of Pollination and Thinning Methods on Yield and Fruit Quality of Saidy Date Palms

2016

AJAS

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“…Khalas however, fruit width was non-significant. Haffar et al (1997) observed significantly higher results in cv. Khalas related to seed weight, fruit weight, length and diameter when female bunches pollinated by hand.…”

Section: Resultsmentioning

confidence: 90%

“…Hillawi (Ullah et al, 2018) and cv. Khalas (Haffar et al, 1997) when pollen dusting method was applied. Iqbal et al (2005Iqbal et al ( , 2010 obtained significantly lower bunch weight in natural pollination method however there was statistically non-significant difference among artificial pollination methods viz.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, numbers of date palm pollination methods have been adopted to attain maximum fruit set and yield benefits such as male strands (spikes) placement, pollen dusting, pollen suspension methods, etc. (Haffar et al, 1997;Hajian, 2005;El-Dengawy, 2017;Munir, 2019). The date palm growers according to their experience and pollen source availability approve these pollination methods.…”

Section: Introductionmentioning

confidence: 99%

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A comparative study of pollination methods effect on the changes in fruit yield and quality of date palm cultivar Khalas

Munir¹

2020

Asian J Agric Biol

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To improve fruit set, yield and fruit physicochemical characteristics of date palm cv. Khalas, the effects of different pollination methods (pollen dusting, strands placement, pollen suspension, and natural pollination) were investigated. Twelve date palm trees were selected for the experiment, for which five spathes (spadix) from each palm were carefully chosen. The experiment was laid out on Randomized Complete Block Design with three replicates for each treatment. The results indicated significant differences among different pollination methods. The date palm cv. Khalas pollinated with dusting method exhibited significantly promising results regarding fruit set, parthenocarpic fruit, biser fruit, tamar fruit, and fruit drop percentage, bunch weight, pulp weight, pulp, seed and pulp : seed ratio, fruit fresh and dry weight, fruit length, width, and volume, seed weight and length, fruit moisture content, total soluble solids, total and reducing sugars. Data regarding total number of fruit nodes per bunch, seed width, and non-reducing sugar were not significantly affected by any pollination methods. Pollination carried out by pollen suspension technique was closely followed to pollen dusting method and a number of attributes were non-significant between the two methods such as fruit set, parthenocarpic fruit, tamar fruit, and fruit drop percentage, bunch and pulp weight, pulp, seed and pulp : seed ratio and fruit moisture content. Strands placement technique was much better than the control one that showed poor results regarding all attributes studied. The correlation between the parameters indicated that fruit set percentage had a significant positive relationship with tamar fruit percentage, bunch weight, total soluble solids, and total sugars. It is consequently concluded that pollen dusting and pollen suspension techniques are the best ones to pollinate date palm cv. Khalas. Moreover, date palm can not be left on natural pollination, which adversely affects fruit yield and quality attributes.

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Evaluation of Potentiality of Different Adjuvants for Date Palm Pollination and Fruit Set

et al. 2020

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Effect of Pollination Frequency and Pollen Concentration on Yield and Fruit Characteristics of Mechanically Pollinated Date Palm Trees (Phoenix dactyliferavar. Khalas)

Cited by 9 publications

References 0 publications

Effect of Pollination and Thinning Methods on Yield and Fruit Quality of Saidy Date Palms

Effect of Pollination and Thinning Methods on Yield and Fruit Quality of Saidy Date Palms

A comparative study of pollination methods effect on the changes in fruit yield and quality of date palm cultivar Khalas

Evaluation of Potentiality of Different Adjuvants for Date Palm Pollination and Fruit Set

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