<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Mercado, A.R.</style></author><author><style face="normal" font="default" size="100%">Tion, M.M</style></author><author><style face="normal" font="default" size="100%">Garrity, D.</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">asb@cgiar.org</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Upland Rice Cultivars for Improved Acid Upland Rice-Based Farming Systems.</style></title><secondary-title><style face="normal" font="default" size="100%">Philippine Journal of Crop Science</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">acid soils</style></keyword><keyword><style  face="normal" font="default" size="100%">cultivars</style></keyword><keyword><style  face="normal" font="default" size="100%">maize</style></keyword><keyword><style  face="normal" font="default" size="100%">multiple cropping</style></keyword><keyword><style  face="normal" font="default" size="100%">oryza</style></keyword><keyword><style  face="normal" font="default" size="100%">Oryza sativa</style></keyword><keyword><style  face="normal" font="default" size="100%">rice</style></keyword><keyword><style  face="normal" font="default" size="100%">variety trials</style></keyword><keyword><style  face="normal" font="default" size="100%">Zea mays</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1993</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.mendeley.com/research/upland-rice-cultivars-for-improved-acid-upland-ricebased-farming-systems/</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">2</style></volume><pages><style face="normal" font="default" size="100%">79-88</style></pages><language><style face="normal" font="default" size="100%">English</style></language><abstract><style face="normal" font="default" size="100%">Elite selections of several rice cultivars were evaluated on acidic (pH &lt;5), infertile soils typical of the majority of acidic upland areas. Emphasis was placed on testing early-maturing cultivars to make it feasible to grow sequences of 2-3 crops per year. The selections IR 30716-B-1-B-1-2, IR 3880-2-3, IR 47686-6-2-2-1 and IR 12979-24-1 (Brown) were outstanding in consistency in yield across 5 years of trials, outperforming the released cv. UPL Ri-5, and local cv. Dinorado, Speaker and Kayatan. Tests under farmer management in rice-maize cropping systems confirmed these results. The use of early-maturing and high yielding upland rice cultivars significantly increased the total system productivity by promoting much higher yields of the following maize crop.</style></abstract><issue><style face="normal" font="default" size="100%">18</style></issue></record></records></xml>