The high yield of irrigated rice in Yunnan, China

Responses of Yielding Ability, Sink Size and Percentage of Filled Grains to the Cultivation Practices in a Chinese Large-Panicle-Type Rice Cultivar, Yangdao 4

“…The high-yielding semidwarf indica and japonicaindica hybrid rice cultivars bred from 1960s to 1970s in IRRI, China, Korea, etc., which have larger number of spikelets and higher adaptability to heavy manuring, owing to their short culm, produce a higher yield compared with conventional Japanese rice cultivars (Komatsu et al, 1984;Takeda et al, 1984;Higashi, 1988;Saitoh et al, 1991Saitoh et al, , 1993Yamamoto et al, 1991;Kusutani et al, 1993;Katsura et al 2008). Moreover, the rice breeders in IRRI proposed the first-generation new plant type (NPT) that possess fewer panicles hill -1 and larger number of spikelets panicle -1 (Khush, 1995) and the second-generation NPT obtained by crossing the first-generation NPT lines with elite indica parents (Peng et al, 2004(Peng et al, , 2008Yang et al, 2007).…”

Rendimento de grãos e eficiência no uso de água de arroz irrigado em função da época de semeadura

“…AKBAR et al (2010), também avaliando diferentes épocas de semeadura na cultura do arroz no Pakistão, encontraram que a época de semeadura afeta o rendimento de grãos da cultura, e associaram o aumento do rendimento às condições meteorológicas favoráveis durante o crescimento e desenvolvimento da cultura, como aumento dos valores médios de temperatura acumulada e horas de radiação solar. Nesse sentido, fazer coincidir o período reprodutivo da cultura do arroz com as melhores condições de temperatura e radiação solar traz resposta positiva em termos de rendimento de grãos (ISLAM & MORISON, 1992;SLATON et al, 2003;FREITAS et al, 2008;KATSURA et al, 2008;SAFDAR et al, 2008;LACK et al, 2012).…”

Adaptability of High-Yielding Rice Cultivars in Relation to Biomass Productivity under Moderately Water Stressed Upland Conditions

“…For the experiment, we prepared two adjacent paddy fields, which had been used as flooded paddies by the same management for several years [16]. One field was used for the flooded condition, and the other was used for the upland condition.…”

“…Some of the chemical properties and soil textures described by Katsura et al [16] are also shown in Table 1 …”