Seed germinability in<i>Musa velutina</i>Wendl. &amp; Drude is markedly lowered by 1 week in dry-storage

Nagano, S.; Mori, Genjiro; Oda, Masayuki

doi:10.1080/14620316.2009.11512525

Cited by 6 publications

(6 citation statements)

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“…For wild species, and especially banana CWRs, critical knowledge gaps exist in how best to collect, store and germinate their seeds. For Musa , only six species have been assessed for their storage behaviour, results of which are inconclusive [ 46 , 47 , 48 , 49 , 50 , 51 , 52 ]. Additionally, germination of seeds is notoriously inconsistent and dormancy poorly understood [ 53 , 54 , 55 ].…”

Section: Introductionmentioning

confidence: 99%

Challenges for Ex Situ Conservation of Wild Bananas: Seeds Collected in Papua New Guinea Have Variable Levels of Desiccation Tolerance

Kallow

Longin

Sleziak³

et al. 2020

Plants

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Ex situ seed conservation of banana crop wild relatives (Musa spp. L.), is constrained by critical knowledge gaps in their storage and germination behaviour. Additionally, challenges in collecting seeds from wild populations impact the quality of seed collections. It is, therefore, crucial to evaluate the viability of seeds from such collecting missions in order to improve the value of future seed collections. We evaluate the seed viability of 37 accessions of seven Musa species, collected from wild populations in Papua New Guinea, during two collecting missions. Seeds from one mission had already been stored in conventional storage (dried for four months at 15% relative humidity, 20 °C and stored for two months at 15% relative humdity, −20 °C), so a post-storage test was carried out. Seeds from the second mission were assessed freshly extracted and following desiccation. We used embryo rescue techniques to overcome the barrier of germinating in vivo Musa seeds. Seeds from the first mission had low viability (19 ± 27% mean and standard deviation) after storage for two months at 15% relative humidity and −20 °C. Musa balbisiana Colla seeds had significantly higher post-storage germination than other species (p < 0.01). Desiccation reduced germination of the seeds from the second collecting mission, from 84 ± 22% (at 16.7 ± 2.4% moisture content) to 36 ± 30% (at 2.4 ± 0.8% moisture content). There was considerable variation between and (to a lesser extent) within accessions, a proportion of individual seeds of all but one species (Musa ingens N.W.Simmonds) survived desiccation and sub-zero temperature storage. We identified that seeds from the basal end of the infructescence were less likely to be viable after storage (p < 0.001); and made morphological observations that identify seeds and infructescences with higher viability in relation to their developmental maturity. We highlight the need for research into seed eco-physiology of crop wild relatives in order to improve future collecting missions.

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Section: Introductionmentioning

confidence: 99%

Challenges for Ex Situ Conservation of Wild Bananas: Seeds Collected in Papua New Guinea Have Variable Levels of Desiccation Tolerance

Kallow

Longin

Sleziak³

et al. 2020

Plants

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“…Additionally, desiccation sensitivity has been shown to be related to the rate of drying and seed maturity (Singh et al, 2021). While some previous studies describe Musa seeds (or embryos) as having orthodox storage behavior (Chin, 1996; Panis et al, 2020; Simmonds, 1952; Singh et al, 2021; Stotzky & Cox, 1962), others describe desiccation sensitivity, being more akin to intermediate storage behavior (Abdelnouresquivel et al, 1992; Chin & Krishnapillay, 1989; Darjo & Bakry, 1990; Kallow et al, 2020; Nagano et al, 2009). Additional factors may also influence survival and longevity, such as the method of extraction from fruit pulp, post‐harvest ripening, drying rate, and intensity.…”

Section: Discussionmentioning

confidence: 99%

Banana seed genetic resources for food security: Status, constraints, and future priorities

Kallow

Mertens

Janssens

et al. 2021

Food and Energy Security

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“…The technical know-how for the collection, storage, and germination of wild banana seeds is lacking. Only six species have been assessed for their storage behaviour (Simmonds 1952;Stotzky and Cox 1962;Chin and Krishnapillay 1988;Boyce 1989;Darjo and Bakry 1990;Chin 1995;Nagano et al 2009). As germination of seeds is inconsistent, the embryo rescue technique could be employed to germinate seeds for breeding programs (Batte et al 2019).…”

Section: Conservation Of Wild Bananasmentioning

confidence: 99%

Harnessing stress-tolerant wild bananas for crop improvement

Panwar

Chaudhry

Kumar

et al. 2022

Crop & Pasture Science

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Climate change impacts crop production through the imposition of different abiotic and biotic stresses, and by altering the prevalence of pests and diseases. The wild relatives of crop plants exhibit enhanced tolerance to environmental stresses due to reduced severity of selection of agriculturally important traits. Wild bananas represent a largely untapped wealth of genetic diversity. Although some wild relatives of the banana crop have been screened for their tolerance to different biotic and abiotic stresses, many remain to be explored. The wild bananas show more hardiness and higher resilience to different stressors in comparison to their cultivated counterparts. They have been harnessed in banana improvement programmes to enhance stress tolerance and productivity. To utilise wild bananas for crop improvement, they need to be readily available to breeders. This warrants devising conservation strategies and the development and maintenance of centres from which different accessions can be procured. In this article, we have discussed some important biotic and abiotic stresses including banana wilt disease, Black Sigatoka disease, viral diseases, salt stress and drought stress where wild bananas are used for imparting tolerance. The conservation of wild bananas, related challenges and contemporary limitations related to their use for crop improvement has also been outlined. Bananas being most important food crop in the world and generally understudied, here, we present a comprehensive review of the use of wild relatives of banana and their related germplasm for the improvement of biotic and abiotic stress tolerance.

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Seed germinability inMusa velutinaWendl. & Drude is markedly lowered by 1 week in dry-storage

Cited by 6 publications

References 0 publications

Challenges for Ex Situ Conservation of Wild Bananas: Seeds Collected in Papua New Guinea Have Variable Levels of Desiccation Tolerance

Challenges for Ex Situ Conservation of Wild Bananas: Seeds Collected in Papua New Guinea Have Variable Levels of Desiccation Tolerance

Banana seed genetic resources for food security: Status, constraints, and future priorities

Harnessing stress-tolerant wild bananas for crop improvement

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