Studies on the germination and seedling characteristics of the savanna palm trees

Tahir, S.M.; Muazu, Salisu; Khan, Aman Ullah; Iortsuun, DN

doi:10.4314/swj.v2i3.51750

Cited by 4 publications

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“…In the adjacent-ligular type (e.g. Archontophoenix), the cotyledonary tube elongates very little at germination, forming a 'button' or mass of tissue just outside the seed, from which the radicle and shoot emerge next to the seed, hence 'adjacent' (Tomlinson, 1960(Tomlinson, , 1990Corner, 1966;Jordan, 1970;Moore and Uhl, 1973;Brown, 1976;Fong, 1978;Uhl and Dransfield, 1987;Henderson, 2006;Tahir et al, 2007). Henderson (2006) has pointed out that these three germination types are not completely satisfactory because of the great variation in length attained by the petiole in developed seedlings.…”

Section: Resultsmentioning

confidence: 99%

What kind of seed dormancy might palms have?

Baskin

2013

Seed Sci. Res.

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Section: Resultsmentioning

confidence: 99%

What kind of seed dormancy might palms have?

Baskin

2013

Seed Sci. Res.

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“…A somewhat similar germination morphology to that of palms (see below) that produce remote tubular and remote ligular seedlings (also referred to as remote hypogeal or cryptogeal; Tahir et al, 2007;Fisher, 2008) has been described for species in several eudicot families, for example, Apiaceae (Holm, 1901;Galil, 1970;Haines and Lye, 1979), Berberidaceae (Dickson, 1882;Holm, 1899;Galil, 1970), Combretaceae (Jackson, 1974), Cucurbitaceae (Hill, 1916;Stocking, 1955;Schlising, 1969), Fabaceae (Hofmeyr, 1921;van der Schijff and Snyman, 1970;Jackson, 1974), Fagaceae (Engelmann, 1880;Troup, 1921;Snow, 1991), Malpighiaceae (Barbosa et al, 2014), Ochnaceae (Jackson, 1974), Ranunculaceae (Holm, 1891;Sargant, 1904;Haines and Lye, 1979), Rubiaceae (Jackson, 1974), Sapotaceae (Jackson, 1968(Jackson, , 1974Ugese et al, 2005Ugese et al, , 2010 and Thymelaeaceae (Clarkson and Clifford, 1987); the magnoliid family Piperaceae (Hill, 1906;Haines and Lye, 1979); and the gymnosperm families Araucariaceae (Burrows et al, 1992) and Zamiaceae (Fisher, 2008). In these and other cryptogeal ('plumule burying') species, the cotyledonary petioles are fused, forming a hollow tube in which the whole embryonic axis or (only) the plumule is located.…”

Section: Cryptogeal Germination ('Plumule Burying' or 'Plumule Protecting')mentioning

confidence: 82%

The great diversity in kinds of seed dormancy: a revision of the Nikolaeva–Baskin classification system for primary seed dormancy

Baskin

2021

Seed Sci. Res.

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This review provides a revised and expanded word-formula system of whole-seed primary dormancy classification that integrates the scheme of Nikolaeva with that of Baskin and Baskin. Notable changes include the following. (1) The number of named tiers (layers) in the classification hierarchy is increased from three to seven. (2) Formulae are provided for the known kinds of dormancy. (3) Seven subclasses of class morphological dormancy are designated: ‘dust seeds’ of mycoheterotrophs, holoparasites and autotrophs; diaspores of palms; and seeds with cryptogeal germination are new to the system. (4) Level non-deep physiological dormancy (PD) has been divided into two sublevels, each containing three types, and Type 6 is new to the system. (5) Subclass epicotyl PD with two levels, each with three types, has been added to class PD. (6) Level deep (regular) PD is divided into two types. (7) The simple and complex levels of class morphophysiological dormancy (MPD) have been expanded to 12 subclasses, 24 levels and 16 types. (8) Level non-deep simple epicotyl MPD with four types is added to the system. (9) Level deep simple regular epicotyl MPD is divided into four types. (10) Level deep simple double MPD is divided into two types. (11) Seeds with a water-impermeable seed coat in which the embryo-haustorium grows after germination (Canna) has been added to the class combinational dormancy. The hierarchical division of primary seed dormancy into many distinct categories highlights its great diversity and complexity at the whole-seed level, which can be expressed most accurately by dormancy formulae.

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“…It is a multipurpose tree of great utility and occurs extensively in Tamil Nadu. It is exploited for juicy pulp from the fruit and tuberous seedling, beverage and sugar from the sap, fibre from the fruits and leaves from the branches, cordage w eaving and p laiting and trunk wood for construction and fuel (Tahir et al, 2007;George et al, 2007). Due to multivarious uses, the government of Tamil Nadu has declared it as "State Tree" (Sankaralingam et al, 1999).…”

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Seed Dormancy and Germination Behaviour of Palmyrah: A Review

Masilamani¹,

Rathika²,

Indurani³

et al. 2023

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Palmyrah (Borassus flabellifer L.) is a slow growing, dioecious, drought resistant palm and considered to be native of Tropical Africa. It is cultivated as well as found growing in wild in the Indian subcontinent. It is distributed in India, Burma, Africa and Sri Lanka. Several problems are encountered in germination of seeds in palmyrah such as poor, protracted germination and prolonged nursery period. The main reasons for the failure of seeds to germinate in suitable conditions are either dead or dormant. The delayed germination of palmyrah might be due to the stony endocarp acting as a physical barrier to imbibition or imposing mechanical resistance to embryo enlargement. Against this backdrop, this review focuses on seed dormancy, pre-sowing seed treatment, nursery technology, and seed storage behaviour of palmyrah.Palmyrah (Borassus flabellifer L.) is a slow growing, dioecious, drought resistant palm and considered to be native of Tropical Africa. It is cultivated as well as found growing in wild in the Indian subcontinent. It is distributed in India, Burma, Africa and Sri Lanka. Several problems are encountered in germination of seeds in palmyrah such as poor, protracted germination and prolonged nursery period. The main reasons for the failure of seeds to germinate in suitable conditions are either dead or dormant. The delayed germination of palmyrah might be due to the stony endocarp acting as a physical barrier to imbibition or imposing mechanical resistance to embryo enlargement. Against this backdrop, this review focuses on seed dormancy, pre-sowing seed treatment, nursery technology, and seed storage behaviour of palmyrah.

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Studies on the germination and seedling characteristics of the savanna palm trees

Cited by 4 publications

References 0 publications

What kind of seed dormancy might palms have?

What kind of seed dormancy might palms have?

The great diversity in kinds of seed dormancy: a revision of the Nikolaeva–Baskin classification system for primary seed dormancy

Seed Dormancy and Germination Behaviour of Palmyrah: A Review

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