|
|
|
Do pre-sowing treatments affect seed germination
in Albizia richardiana and Lagerstroemia speciosa ? |
| Md. Salim AZAD1,Nerepen Kumar PAUL2,Md. Abdul MATIN2, |
| 1.Centre for Tropical
and Subtropical Agriculture and Forestry (CeTSAF), Georg-August-University,
Goettingen 37075, Germany；Forestry and Wood Technology
Discipline, Khulna University, Khulna 9208, Bangladesh; 2.Forestry and Wood Technology
Discipline, Khulna University, Khulna 9208, Bangladesh; |
|
|
|
|
Abstract In this paper, seed morphology and effects of pre-sowing treatments were studied. Matured seeds of the species were collected from healthy trees in the National Botanical Garden, Bangladesh, and treated with five pre-sowing treatments. The average length, breadth and thickness were found to be 0.56±0.03 cm, 0.44±0.009 cm and 0.26±0.008 cm in Albizia richardiana King and Prain, and 1.32±0.02 cm, 0.55±0.04 cm and 0.11±0.002 cm in Lagerstroemia speciosa L., respectively. Germination was carried out in polybags with a mixture of topsoil, coconut husk compost, coarse sand and fine sand in a ratio of 3∶4∶1∶1. Results revealed that the germination rates of seeds in different pre-sowing treatments were significantly increased compared to those in cold-water treatment in both species. The highest germination rate was found to be 96% in hot-water treatment followed by 87%, 83% and 49% in treatments with scarification, H2SO4 and control in A. richardiana, respectively. However, the highest germination rate (79%) was found in H2SO4 treatment followed by 64%, 62% and 25% in treatments with hot water, scarification and control in L. speciosa, respectively. The lowest germination (35% in A. richardiana and 20% in L. speciosa) was found in cold-water treatment in both cases. Analysis of variance (ANOVA) showed the significant difference among the treatments for both species. It is concluded that hot-water treatment is recommended for seed germination of both species in rural Bangladesh.
|
| Keywords
seed dormancy
seed-coat
pericarp
Albizia richardiana
Lagerstroemia speciosa
|
|
Issue Date: 05 June 2010
|
|
|
Ahamed F U, Das S, Hossain M A(1983). Effect of seed treatmenton the germination of Rakta kombal seeds. Bano Biggyan Patrica, 12(1 &2): 62–65
|
|
Alamgir M, Hossain M K(2005). Effect of pre-sowing treatments on Albizia procera (Roxb.) Benth seeds and initials developmentof seedlings in the nursery. Journal ofForestry and Environment, 3: 53–60
|
|
Ali M, Akhter S, Kamaluddin M(1997). Studyon the bearing of water treatment on seed germination and seedlinggrowth study of Albizia procera. Indian Forester, 123(8): 764–768
|
|
Azad M S, Islam M W, Matin M A, Bari M A(2006a). Effect of pre-sowing treatment on seed germination of Albizia lebbeck (L.) Benth. South Asian J Agric, 1(2): 32–34
|
|
Azad M S, Matin M A, Islam M W, Musa Z A(2006b). Effect of pre-sowing treatment on seed germination ofLohakath (Xylia kerrii Craib &Hutch.). Khulna University Studies, 7(2): 33–36
|
|
Bachelard E P(1967). Role of seed-coat dormancy in Eucalyptus pauciflora and E. delegtensis seeds. Australian Journal of Biological Sciences, 4: 147–154
|
|
Banik H(1992). Nurserytay kut, full and folair charauttolon koushol (in Bengali). (Nursery technique of differenttimber, flower and fruits species) Dhaka, Bangladesh
|
|
Bhardwas S D, Chakraborty A K(1994). Studies on time of seed collection, sowing and pre-sowingtreatments of Terminalia bellirica Roxb. and Terminalia chebula Retz.. Indian Forester, 120(5): 430–439
|
|
Catalan L A, Macchiavelli R E(1991). Improving germination in Prospisflexuosa D.C. and P. alba Griseb. with hot water treatments and scarification. Seed Science and Technology, 19: 253–262
|
|
Duncan D B(1955). Multiple ranges and multiple F-tests. Biometrics, 11: 1–42
doi: 10.2307/3001478
|
|
Khan B M, Koirala B, Hossian M K(2001). Effectof different pre-sowing treatments on germination and seedling growthattributes in Ghora Neem (Melia azedarach L.). Malaysian Forester, 64(1): 14–21
|
|
Khasa P D(1992). Scarification of limba seeds withhot water, bleach and acid. Tree PlantersNote, 43(4): 150–152
|
|
Kobmoo B, Hellum A K(1984). Hot water and acid improve the germination of Cassia siamea Britt. seeds. The Embryan, 1(1): 27–33
|
|
Koirala B, Hossain M K, Hossain M S(2000). Effectsof different pre-sowing treatments on Adenantherapavonia L. seeds and initial seedling development in thenursery. Malaysian Forester, 63(2): 82–91
|
|
Matin M A, Islam M S, Azad M S(2006). Seed germination,seedling growth and rooting of branch cuttings of DalbergiasSissoo Roxb. KhulnaUniversity Studies, Special Issue (Ist Research Cell Conference)83–87
|
|
Matin M A, Rashid M H(1992). Seed morphology, germination and seedling survival of Albizia trees in the nursery. Bangladesh Journal of Forest Science, 21(1&2): 40–45
|
|
Palani M, Dasrhgir M G, Kumaran K. (1995). Effectof pre-sowing chemical treatment on germination and seedling growthin Acacia nilotica. International Tree Crop Journal, 8: 189–192
|
|
Schmidt L(2000). Guide to handling of tropical andsubtropical forest seeds. Danida ForestSeed Centre. Humlebaeck, Denmark
|
|
Teketay D(1996). The effect of different pre-sowingtreatments, temperature and light on the germination of five sennaspecies from Ethiopia. New Forest, 11: 155–171
doi: 10.1007/BF00033411
|
|
Troups R S(1921). The Silviculture of Indian Trees. Volume-II. Silvicultural Systems. Oxford: OxfordScience Publication, Clarendon Press
|
|
Yadav J P(1992). Pretreatment of teak seed to enhancegermination. Indian Forester, 11(2): 260–264
|
|
Zabala N Q(1990). Silviculture of Species. Food and Agriculture Organization of the UnitedNations, Rome, Italy
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
