The strong effect of pollen source and pollination time on fruit set and the yield of tissue culture-derived date palm ( Phoenix dactylifera L.) trees cv. Barhee

Mohammadi, Nasim; Rastgoo, Sasan; Izadi, Mahdi

doi:10.1016/j.scienta.2017.06.031

Cited by 13 publications

(11 citation statements)

References 19 publications

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“…Three mature spathes (inflorescences) newly opened from each male tree were collected and fresh pollens from spikelets were collected. Strands were cut off and spread on paper sheets to dry slowly in clean rooms (Mohammadi et al, 2017) and prepared for storage. Pollen grains of the three male spathes were mixed together to minimize variations that might have existed between the pollens of those spathes.…”

Section: Pollen Collection and Storage Conditionsmentioning

confidence: 99%

In Vitro Germination of Different Date Palm (Phoenix Dactylifera L.) Pollen Sources from Southern Tunisia under the Effect of Three Storage Temperatures

Kadri

Mimoun

2020

International Journal of Fruit Science

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Date palm pollen storage is becoming more and more necessary due to the asynchronous maturation of male and female flowers that, frequently, occurs, during the last years in Tunisia. However, little information is available on the pollen viability and favorable storage conditions. The present study aims to compare date palm pollen storage at three temperatures (25 ± 2°C, 4° C and −20°C) and to evaluate the aptitude of pollens from different geographical origins to conserve their in vitro germinative potency. Results revealed that, after the fresh pollen, the overall pollen in vitro germinations were significantly improved with storage at −20°C (41.04 ± 23.84%) and 4°C (20.07 ± 22.19%) compared with storage at 25 ± 2°C (4.27 ± 4.39%). For each used temperature, the in vitro germination was not affected by the pollen origins. In fact, almost similar reactions were observed for fresh and stored pollen at 25 ± 2°C and 4°C. On the other hand, pollen stored at −20°C had reacted independently from the origin. However, the aptitude of pollens from similar origins to preserve their in vitro germination potencies under the three storage temperatures reveals some similarities. Physiologic characteristics of pollens were not related to the geographic origins and did not significantly affect their aptitude for storage

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Section: Pollen Collection and Storage Conditionsmentioning

confidence: 99%

In Vitro Germination of Different Date Palm (Phoenix Dactylifera L.) Pollen Sources from Southern Tunisia under the Effect of Three Storage Temperatures

Kadri

Mimoun

2020

International Journal of Fruit Science

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“…This was observed in a tissue culture-derived date palm (Phoenix dactylifera L.) cv. Barhee [17]. An impact of pollen source on fruit quality parameters, such as dry matter, phenolic content and biochemical seed composition in A. arguta or fruit set, fresh weight, seed weight, and colour, of flesh in seedlings of A. chinensis was also observed [18,19].…”

Section: Introductionmentioning

confidence: 94%

Effect of Genetically Diverse Pollen on Pollination, Pollen Tube Overgrow, Fruit Set and Morphology of Kiwiberry (Actinidia arguta)

2021

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Successful pollination and fertilization are crucial processes for obtaining a high yield, especially for dioecious plants such as A. arguta. Determination of pollen tube growth on stigma and fruit development parameters, which were investigated in this study, can enable the evaluation of male–female compatibility—one of the factors of successful pollination. Pollen quality and grain size were analysed for two years on six male cultivars of A. arguta and one of A. chinensis var. deliciosa. Results showed high pollen quality, both with parameters above 80%. Pollen germination in vivo showed differences in pollen–stigma interactions. The highest positive interactions were observed for all female cultivar crosses with male ‘Nostino’ and ‘Rubi’ and the lowest one for A. chinensis var. deliciosa ‘Tomuri’. However, fruit set and average fruit weight were equally high in most of the combinations (fruit set above 75% for the majority of combinations). Some differences were noticed in the average seed number per fruit and weight. All tested male cultivars were able to fertilize tested female cultivars, but taking into account other characteristics such as pollen efficiency, some male cultivars seemed to be more proper for commercial orchards. Using A. chinensis var. deliciosa pollen seems to be unreasonable in tested conditions.

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“…Disamping itu perbanyakan kurma dengan biji akan menghasilkan tanaman dengan sifat beragam, dan baru mulai berbuah setelah 4-7 tahun. Oleh karena itu, penggunaan bahan tanam asal kultur jaringan merupakan alternatif yang menjanjikan (Mohammadi et al, 2017).…”

Section: Pendahuluanunclassified

Embriogenesis somatik dari pucuk tunas tanaman kurma (Phoenix dactylifera L.) Somatic embryogenesis from shoot tip of date palm (Phoenix dactylifera L.))

Saptari¹,

Sumaryono²

2018

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Date palm (Phoenix dactylifera L.) is the most important crop in the dry areas of the Middle East and North Africa. This palm has been introduced to many countries but has not been grown commercially in Indonesia. Date palm propaga-tion by seeds is easy but its progenies are varied and a half of them are male trees that will not produce fruits. Meanwhile, the propagation by offshoots is impractical and technically difficult. Tissue culture makes it possible to massproduce of genetically identicalsuperior date palms. This research aimed to develop somatic embryogenesis (SE) of date palm using shoot tipand young leaves of date palm seedling as explants. Steps on somatic embryogenesis are explant sterilization, callus initiation and proliferation, somatic embryos induction and maturation, and plantlets matura-tion and rooting. Calli emerged from shoot tip explants after 9 weeks of culture in a modified MS medium supplemented with 10 mg/L 2,4-D, 1 mg/L or 3 mg/L 2-iP, and 1.5 g/L active charcoal. The callus was able to bear somatic embryo in the modified MS medium without hormones. Somatic embryos then developed into plantlets, and roots of plantlets were effectively initiated in the medium supplemented with 0.5 mg/L NAA and 1 mg/L IBA.[Keywords:sterilization, callogenesis, somatic embryo induction, plantlet rooting, clonal propagation]. Abstrak Tanaman kurma (Phoenix dactyliferaL.) merupakan tanaman terpenting di wilayah kering Timur Tengah dan Afrika Utara. Palma ini telah menyebar ke banyak negara, namun belum ditanam secara komersial di Indonesia. Perbanyakan kurma dengan biji sangat mudah tetapi turunannya sangat beragam dan setengahnya merupakan tanaman jantan yang tidak berbuah. Perbanyakan dengan anakan (offshoots) secara komersial tidak praktis dan relatif sulit. Kultur jaringan memungkinkan untuk dihasilkan secara massal bibit tanaman kurma varietas unggul yang secara genetik seragam. Penelitian ini bertujuan untuk mengembangkan embriogenesis somatik menggunakan eksplan pucuk tunasdan daun muda dari bibit tanaman kurma. Pengembangan embriogenesis somatik terdiri dari tahap sterilisasi eksplan, inisiasi dan proliferasi kalus, induksi dan maturasi embrio somatik, serta pembesaran dan pembentukan akar planlet. Kalus terbentuk dari eksplan pucuk tunassetelah 9 minggu dikultur pada medium MS modifikasi yang ditambahkan 2,4-D 10 mg/L, 2-iP 1 mg/L atau 3 mg/L, dan arang aktif 1,5 g/L.Kalus berhasil diinduksi menghasilkanembrio somatik pada medium MS modifikasi tanpa penggunaan hormon. Embrio somatik kemudian berkembang hingga menjadi planlet, dan akar planlet secara efektif terinisiasipada medium yang ditambahkan NAA 0,5 mg/L dan IBA1 mg/L. [Kata kunci :sterilisasi, kalogenesis, induksi embrio somatik, pengakaran planlet, propagasi klonal].

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The strong effect of pollen source and pollination time on fruit set and the yield of tissue culture-derived date palm ( Phoenix dactylifera L.) trees cv. Barhee

Cited by 13 publications

References 19 publications

In Vitro Germination of Different Date Palm (Phoenix Dactylifera L.) Pollen Sources from Southern Tunisia under the Effect of Three Storage Temperatures

In Vitro Germination of Different Date Palm (Phoenix Dactylifera L.) Pollen Sources from Southern Tunisia under the Effect of Three Storage Temperatures

Effect of Genetically Diverse Pollen on Pollination, Pollen Tube Overgrow, Fruit Set and Morphology of Kiwiberry (Actinidia arguta)

Embriogenesis somatik dari pucuk tunas tanaman kurma (Phoenix dactylifera L.) Somatic embryogenesis from shoot tip of date palm (Phoenix dactylifera L.))

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