Seed Germination Studies in Musa. II. Alternating Temperature Requirement for the Germination of Musa balbisiana

Stotzky, G.; Cox, Elsie A.

doi:10.2307/2439170

Cited by 8 publications

(8 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our results were comparable to many tropical disturbanceadapted species (reviewed by Vázquez-Yanes and Orozco-Segovia, 1993;Baskin and Baskin, 2014). Within the Musaceae, M. acuminata thermal requirements were similar to M. balbisiana (Stotzky et al, 1961;. In these studies, there was also an almost absolute requirement for alternating temperatures, with maximum germination at 35°C for 5 h (mean 59%), and low temperature was 15°C for 19 h (mean 70%).…”

Section: Discussionmentioning

confidence: 53%

“…In contrast to M. balbisiana (McGahan, 1961a(McGahan, , 1961bStotzky et al, 1961Bhat et al, 1994), surprisingly little attention has been paid to M. acuminata seeds. In the 1950s, Simmonds (1952Simmonds ( , 1959) examined both M. acuminata and M. balbisiana with various non-invasive treatments (looking at ripeness, maturity and moisture content) and invasive treatments (using chipping, scorching, soaking and acid treatments).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Regulation of seed germination by diurnally alternating temperatures in disturbance-adapted banana crop wild relatives (Musa acuminata)

Kallow

Davies

Panis³

et al. 2020

Seed Sci. Res.

View full text Add to dashboard Cite

Seed conservation of banana crop wild relatives (Musa L. spp.) is limited because of lack of knowledge about their germination ecology. Musa acuminata Colla, the most important banana crop wild relative, is distributed in tropical and subtropical Asian and Pacific rainforests and colonizes disturbed sites. The role of temperature in stimulating/inhibiting germination to detect disturbance when canopy gaps are formed is not well known. We assessed seed germination thermal requirements of three subspecies of M. acuminata using nine seed accessions which had been stored in the Millennium Seed Bank. Diurnally alternating temperature cycles were almost completely essential for germination compared with constant temperatures. Germination was optimal when the upper temperature of a diurnal cycle was at 35°C; the lower temperature of the cycle was less important. Subspecies occurrence coordinates were used to extract climate temperature data which were then compared against the temperature requirements for germination from our experiment results. Maximum temperatures of the warmest month across subspecies ranges were close to but below optimal germination temperatures, as were diurnal ranges, suggesting soil-warming at the micro-climate level following gap creation is important for M. acuminata seed germination. Additionally, pre-treatment for 3 months at 60% relative humidity at constant 25°C improved germination from 14 ± 10 (mean, standard deviation) to 41 ± 29% suggesting a period in the soil seed bank under the canopy may increase sensitivity to alternating temperature cycles. Overall viability was low (49 ± 28%), and considerable variance was caused by the different accessions. Germination remained somewhat inconsistent.

show abstract

Section: Discussionmentioning

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Regulation of seed germination by diurnally alternating temperatures in disturbance-adapted banana crop wild relatives (Musa acuminata)

Kallow

Davies

Panis³

et al. 2020

Seed Sci. Res.

View full text Add to dashboard Cite

show abstract

“…Low germination of excised embryos in vitro in cultivars of Musa (AAA) EAHB (Ssebuliba et al, 2006) and other Musa hybrids (Bakry, 2008) is consistent with physiological dormancy of the embryo (embryo dormancy), although low germination of excised embryos is not always typical of Musa species. For example, more than 90% of embryos of M. balbisiana (BB), excised from fresh seeds (Bakry, 2008) and from seeds stored at room temperature for up to 18 months (Cox et al, 1960;Stotzky and Cox, 1962), developed into plantlets.…”

Section: Embryo Dormancy: a Cause For Poor Germination?mentioning

confidence: 99%

Overcoming the fertility crisis in bananas (Musa spp.)

Amah¹,

Turner²,

Gibbs³

et al. 2020

Burleigh Dodds Series in Agricultural Science

View full text Add to dashboard Cite

“…A favoured theory is that vegetation cover can reduce the daily amplitude of temperature oscillations and that the alternating temperature response is an adaptation to germination after canopy removal (Toole et al, 1956). An interesting early demonstration of the importance of alternating temperatures was by Stotzky and Cox (1962), who realized that germination of Musa balbisiana seeds was strongly inhibited in their greenhouse in winter, when it was artificially heated to maintain temperature. Mechanisms touted as candidates were the need for sequential destruction of inhibitor and synthesis of activators, or the regulation of some aspect of metabolism, or light signalling (Toole et al, 1956).…”

Section: Germination Promotion By Alternating Temperaturesmentioning

confidence: 99%

Maternal and zygotic temperature signalling in the control of seed dormancy and germination

Kendall

Penfield

2012

Seed Sci. Res.

View full text Add to dashboard Cite

Temperature has a key influence over seed dormancy and germination, allowing wild plants to synchronize their life history with the seasons. In this review we discuss the signalling pathways through which temperature is integrated into seed physiology and the control of primary and secondary dormancy, with an emphasis on understanding maternal effects and responses dictated by the zygotic tissues. A key emerging paradigm is that temperature signalling in seeds must be understood in relation to whole plant genetics and physiology, as overlapping pleiotropic roles for temperature sensing and hormone signalling pathways are commonplace.

show abstract

Seed Germination Studies in Musa. II. Alternating Temperature Requirement for the Germination of Musa balbisiana

Cited by 8 publications

References 16 publications

Regulation of seed germination by diurnally alternating temperatures in disturbance-adapted banana crop wild relatives (Musa acuminata)

Regulation of seed germination by diurnally alternating temperatures in disturbance-adapted banana crop wild relatives (Musa acuminata)

Overcoming the fertility crisis in bananas (Musa spp.)

Maternal and zygotic temperature signalling in the control of seed dormancy and germination

Contact Info

Product

Resources

About