Seed Traits Variation within the Plant in Hyptis suaveolens (L.) Poit
23 / 1
Authors
-
SANTIMOHAN MANDAL
Central Research Facility, Indian Institute of Technology, Kharagpur 721 302
Author
-
RABINDRANATH BHATTACHARYYA
Central Research Facility, Indian Institute of Technology, Kharagpur 721 302
Author
Keywords:
Hyptis suaveolens, resource mobilization, seed number, seed mass, seed germinationAbstract
The theory of resource allocation has been widely used to examine the physiological basis for variation in reproductive output and the evolution of life history strategies in plant. The variation in numbers of fruit set, seed number, seed size, seed mass and seed germination was investigated at different branch position in Hyptis suaveolens (L) Poit. Significant differences were observed in seed size and seed mass among different branches. Both large and small seeds developed within the same plant. The mass of large seeds were more or less two-fold greater than small seeds. Larger seeds showed a higher germination potential than smaller seeds.
Downloads
References
1. MEDRANO, M., P. GUITIAN & J. GUITIAN (2000). Patterns of fruit and seed set within the inflorescence of Pancratium maritimum (Amarylladaceae): nonuniform pollination, resource limitation, or architectural effects? Am. J. Bot,. 87: 493-501.
2. GUTTERMAN, Y. (1990). Do the germination mechanisms differ in plants originating in deserts receiving winters or summer rain? In: Mayer, A.M. (ed.) special edition in the memory of the late professor M. Evernari. Israel J.Bot.. 39: 355-372.
3. HARPER, J.L., P. LOVELL & K. MOORE (1970). The shapes and sizes of seeds. Ann. Rev. Ecol. and Syst., 1: 327-356.
4. SILVERTOWN, J. (1981). Seed size, life span and germination date as an adapted features of plant life history. Am. Natur., 118: 860-864.
5. WEIS, M.I. (1982). The effects of propagule size on germination and seedling growth in Mirabilis hirsute. Can JBot. 60: 1868-1874.
6. HENDRIX, S.D. (1984). Variation in seed weight and its effects on germination in Pastinaca sativa L. (Umbelliferae). Am. J. Bot., 71: 795-802.
7. PITELKA, L.F., M.E. THAYER & S.B. HANSEN (1983). Variation in achene weight in Aster acuminatus. Can. J. Bot., 61: 1415-1420.
8. WINN, A.A. (1991). Proximate and ultimate sources of within individual variation in seed mass in Prunella vulgaris (Lamiaceae). Am. J. Bot., 78: 838-844.
9. MENDEZ, M. (1997). Sources of variation in seed mass in Arum italicum. Int. J. Plant Sci., 158: 198-305.
10. WULLF, R. (1986). Seed size variation in Desmodium paniculatum. II. Effects of seedling growrh and physiological performance. J. Ecol., 74: 99-114.
11. CASTELLANI, E.D. & I.B. AGUIAR (2001). Seed maturation and effect of temperature regime on Treme micrantha L. Seed Sci. & Technol., 29: 73-82.
12. WILLIS, J.C. (1973). Dictionary of flowering plants and ferns (Rev. by Shaw, A.K). Cambridge University Press. London, Pp. 587.
13. WULLF, R. (1973). Intrapopulational variation the germination of seeds in Hyptis suaveolens. Ecology, 54:46-649.
14. ASEKUM, O.T. & EUKUNDAYO (2002). Essential oil constituents of Hyptis suaveolens (L) Piot, (bush tea) leaves. Nigerian J. Essential Oil Res., 12: 227-230.
15. MUGNISJAH, W.Q. & S. NAKAMURA (1986). Methanol and ethanol stress for seed vigor evaluation in soybean. Seed Sci. & Technol., 14: 95-103.
16. BUIDE, M.A. (2004). Intra inflorescence variation in floral traits and reproductive success of the hermaphrodite Silene acutifolia. Annal Bot., 94: 441-448.
17. BARUA, B., A. BHATTACHARJEEN & K. GUPTA (1986). Physiological assesment of the maturity of seeds of a spiny safflower cultivar (Carthamus tinctorius L.) Seed Sci. & Technol., 14: 601-609.
18. SCHAAL, B.A. (1980). Reproductive capacity and seed size in Lupinus texensis. Am. J. Bot., 67: 703-709.
19. RESS, M. (1997). Evolutionary ecology of seed dormancy and seed size. Plant life histories: ecology, phenology and evolution. (Eds. Silvertown, J.W., Franco, M. and Harper, J.L.). Cambridge University Press, Cambridge, Pp. 123-141.
20. KIDSON, R. & M. WESTOBY (2000). Seed mass and seedling dimensions in relation to seedling establishment. Oecologia, 125: 11-17.
