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Germination Ecology of Chinese Sprangletop (Leptochloa chinensis) in the Philippines

Published online by Cambridge University Press:  20 January 2017

Bhagirath S. Chauhan  and
David E. Johnson
Bhagirath S. Chauhan*
Affiliation:
Crop and Environmental Sciences Division, International Rice Research Institute, Los Baños, Philippines
David E. Johnson
Affiliation:
Crop and Environmental Sciences Division, International Rice Research Institute, Los Baños, Philippines
*
Corresponding author's E-mail: [email protected]
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Abstract

Chinese sprangletop is a grass weed that has the ability to grow in both flooded and upland conditions, which makes it a widespread and abundant weed in rice and many other crops. Experiments were conducted to study the germination of this weed in the Philippines. Germination was strongly stimulated by light and warm fluctuating temperatures, suggesting high emergence of Chinese sprangletop on bare ground such as a crop seedbed. A high level of germination (95%) immediately after seed harvest suggests that the soil seed bank of this species could be depleted by stale-seedbed strategies. Seed burial depth in soil strongly influenced emergence of this weed, and no seedlings emerged from seeds buried at depths of ≥ 0.5 cm. Maximum emergence (80%) from seeds placed on the soil surface suggests that no-till practices would enhance the emergence of seedlings. Seedling emergence from surface-sown seeds was similar (80 to 82%) between saturated and aerobic-moist soil, demonstrating that this weed does not require a saturated soil and that it can emerge from a moist soil. Flooding, even though not continuous or deep, had a suppressive effect on the emergence and dry matter of Chinese sprangletop. Germination responses to light and seed burial depth were different between our study in the Philippines and the study conducted with seeds of an Italian population, suggesting that Chinese sprangletop might be polymorphic. The implications of this information for weed management strategies are discussed.

Keywords

Chinese sprangletop, Leptochloa chinensis (L.) Nees. LEFCHrice, Oryza sativa L.Depth, emergencefloodinggerminationlighttemperature
Type
Weed Biology and Ecology
Information
Weed Science , Volume 56 , Issue 6 , December 2008 , pp. 820 - 825
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Azmi, M., Chin, D. V., Vongsaroj, P., and Johnson, D. E. 2005. Emerging issues in weed management of direct-seeded rice in Malaysia, Vietnam, and Thailand. Pages 196–198. in Toriyama, K., Heong, K. L., and Hardy, B. Rice Is Life: Scientific Perspectives for the 21st Century. Tsukuba, Japan. and Tsukuba, Japan: Japan International Research Center for Agricultural Sciences, CD. Los Baños, Philippines International Rice Research Institute.Google Scholar
Baskin, C. C. and Baskin, J. M. 1998. Seeds: Ecology, Biogeography, and Evaluation of Dormancy and Germination. San Diego, CA Academic. 666 p.Google Scholar
Benvenuti, S. 2003. Soil texture involvement in germination and emergence of buried weed seeds. Agron. J. 95:191–198.CrossRefGoogle Scholar
Benvenuti, S., Dinelli, G., and Bonetti, A. 2004. Germination ecology of Leptochloa chinensis: a new weed in the Italian agro-environment. Weed Res. 44:87–96.Google Scholar
Bhowmik, P. C. 1997. Weed biology: importance to weed management. Weed Sci. 45:349–356.Google Scholar
Burke, I. C., Thomas, W. E., Spears, J. F., and Wilcut, J. W. 2003. Influence of environmental factors on after-ripened crowfootgrass (Dactyloctenium aegyptium) seed germination. Weed Sci. 51:342–347.Google Scholar
Chauhan, B. S., Gill, G., and Preston, C. 2006a. Factors affecting seed germination of threehorn bedstraw (Galium tricornutum) in Australia. Weed Sci. 54:471–477.Google Scholar
Chauhan, B. S., Gill, G., and Preston, C. 2006b. Influence of environmental factors on seed germination and seedling emergence of rigid ryegrass (Lolium rigidum). Weed Sci. 54:1004–1012.Google Scholar
Chauhan, B. S. and Johnson, D. E. 2008a. Influence of environmental factors on seed germination and seedling emergence of eclipta (Eclipta prostrata) in a tropical environment. Weed Sci. 56:383–388.Google Scholar
Chauhan, B. S. and Johnson, D. E. 2008b. Seed germination and seedling emergence of giant sensitiveplant (Mimosa invisa). Weed Sci. 56:244–248.Google Scholar
Chin, D. V. 2001. Biology and management of barnyardgrass, red sprangletop and weedy rice. Weed Biol. Manag. 1:37–41.Google Scholar
Civico, R. S. A. and Moody, K. 1979. The effect of the time and depth of submergence on growth and development of some weed species. Philipp. J. Weed Sci. 6:41–49.Google Scholar
Cousens, R. D., Baweja, R., Vaths, J., and Schofield, M. 1993. Comparative biology of cruciferous weeds: a preliminary study. Pages 376–380. in. Proceedings of the 10th Australian and 14th Asian-Pacific Weed Conference. Brisbane, Australia. Brisbane, Australia Weed Society of Queensland.Google Scholar
Galinato, M. I., Moody, K., and Piggin, C. M. 1999. Upland rice weeds of South and Southeast Asia. Makati City (Philippines) International Rice Research Institute. 156 p.Google Scholar
GenStat 8.0 2005. GenStat Release 8 Reference Manual. Oxford, UK VSN International. 343 p.Google Scholar
Kent, R. J. and Johnson, D. E. 2001. Influence of flood depth and duration on growth of lowland rice weeds, Côte d'Ivoire. Crop Prot. 20:691–694.Google Scholar
Manidool, C. 1992. Leptochloa chinensis (L.) Nees. Pages 149–150. in Mannetje, L. and Jones, R. M. Plant Resources of Southeast Asia. 4. Forages. Wageningen, the Netherlands Pudoc Scientific.Google Scholar
Marambe, B. 2002. Emerging weed problems in wet-seeded rice due to herbicide use in Sri Lanka. in. Abstracts. Beijing, China International Rice Congress. 430.Google Scholar
Michel, B. E. 1983. Evaluation of the water potentials of solutions of polyethylene glycol 8000 both in the absence and presence of other solutes. Plant Physiol. 72:66–70.Google Scholar
Migo, T. R., Namuco, O. S., Mortimer, A. M., and Johnson, D. E. 2005. Emergence and growth strategies of some common lowland rice (Oryza sativa L.) weeds to submergence. Pages 131–136. in. Proceedings of the 20th Asian-Pacific Weed Science Society Conference. Ho Chi Minh City, Vietnam Agriculture Publishing House.Google Scholar
Mortimer, A. M. and Hill, J. E. 1999. Weed species shifts in response to broad-spectrum herbicides in sub-tropical and tropical crops. Brighton Crop Prot. Conf. 2:425–437.Google Scholar
Mortimer, A. M., Namuco, O., and Johnson, D. E. 2005. Seedling recruitment in direct-seeded rice: weed biology and water management. Pages 202–205. in. Rice Is Life: Scientific Perspectives for the 21st Century. Tsukuba, Japan. and Tsukuba, Japan: Japan International Research Center for Agricultural Sciences, CD. Los Baños, Philippines International Rice Research Institute.Google Scholar
Pons, T. L. 1982. Factors affecting weed seed germination and seedling growth in lowland rice in Indonesia. Weed Res. 22:155–161.Google Scholar
Rao, A. N., Johnson, D. E., Sivaprasad, B., Ladha, J. K., and Mortimer, A. M. 2007. Weed management in direct-seeded rice. Adv. Agron. 93:153–255.Google Scholar
Smith, R. J. J. and Fox, W. T. 1973. Soil water and growth of rice and weeds. Weed Sci. 21:61–63.CrossRefGoogle Scholar
Soerjani, M., Kostermans, A. J. G. H., and Tjitrosoepomo, G. 1987. Weeds of Rice in Indonesia. Jakarta Balai Pustaka. 716 p.Google Scholar
Teuton, T. C., Brecke, B. J., Unruh, J. B., MacDonald, G. E., Miller, G. L., and Ducar, J. T. 2004. Factors affecting seed germination of tropical signalgrass (Urochloa subquadripara). Weed Sci. 52:376–381.Google Scholar
Tuong, T. P., Bouman, B. A. M., and Mortimer, M. 2005. More rice, less water: integrated approaches for increasing water productivity in irrigated rice-based systems in Asia. Plant Prod. Sci. 8:231–241.CrossRefGoogle Scholar
Woolley, J. T. and Stoller, E. 1978. Light penetration and light-induced seed germination in soil. Plant Physiol. 61:597–600.Google Scholar
Zhang, Z. P. 2003. Development of chemical weed control and integrated weed management in China. Weed Biol. Manag. 3:197–203.Google Scholar