[Developing of upland rice tolerance to shading as intercropped plants: physiological and genetical approach]
1999
Sopandie, D. | Chozin, M.A. | Lontoh, A.P. (Institut Pertanian Bogor (Indonesia). Fakultas Pertanian) | Suwarno
Developing upland rice as intercrop between trees in plantation or Forect Plantation (HTI) faces several problems, such as low light condition, drought stress, Al toxicity and Pyricularia oryzae disease. It seems that light intensity is the main limiting factor for crop production at those intercropping systems. The development of upland rice varieties for high adaptability to shade, however, has been very little attention. It could be understood that breeding of upland rice for adaptation to shade have been hampered by very little understanding of research people to genetic-environment interactions. The key to this effort is breeding upland rice cultivars for improved shade tolerance. This would be achieved by better understanding the physiology of genotype-stress interaction to develop more conceivable breeding program. By rapid development of the knowledge of physiological and biochemical adaptation to shade and genetic control of its interaction, the better precision of approaches would contribute more tools for breeding upland rice adapted to shade condition. Our on-going research funded by Graduate Team Research Grant is designed to develop upland rice varieties which have high adaptability to shade, yield better and more stable to support breeding program for adaptation to various multiple cropping system
显示更多 [+] 显示较少 [-]