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Cited by 124 publications
(94 citation statements)
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References 27 publications
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“…These results indicate that leaf senescence was suppressed in plants in the D-plot during ripening. A midday or afternoon reduction in the rate of photosynthesis on a clear day has also been observed in wheat plants after April (Koh and Kumura, 1973), as in other crops (Hirasawa and Hsiao, 1999;Huck et aI., 1983;Ishihara and Saito, 1987). The larger the resistance to water transport in plants, the larger the reduction in the rate of photosynthesis (Hirasawa et aI., 1992a).…”
Section: Plotmentioning
confidence: 85%
“…These results indicate that leaf senescence was suppressed in plants in the D-plot during ripening. A midday or afternoon reduction in the rate of photosynthesis on a clear day has also been observed in wheat plants after April (Koh and Kumura, 1973), as in other crops (Hirasawa and Hsiao, 1999;Huck et aI., 1983;Ishihara and Saito, 1987). The larger the resistance to water transport in plants, the larger the reduction in the rate of photosynthesis (Hirasawa et aI., 1992a).…”
Section: Plotmentioning
confidence: 85%
“…In this experiment, irrigations were scheduled to meet crop water requirements at both subplots and therefore to keep crop water status at an optimum value. Nevertheless, in semiarid climates, the evaporative demand during midday is so high that LWP decreases because of partial stomata closure, even though there is adequate soil moisture (Hirasawa and Hsiao, 1999). The increase of LWP during, and after the sprinkler irrigation, found in this study, indicates that sprinkler irrigation could relieve the crop of that mild stress.…”
Section: Resultsmentioning
confidence: 47%
“…The high evaporative demand during midday and early afternoon, typical of semiarid climates, reduces leaf water potential (LWP), regardless of soil water content, thus affecting stomata conductance and photosynthetic rates (Hirasawa and Hsiao, 1999). However, during daytime sprinkler irrigation, the crop microclimate is modified.…”
Section: Introductionmentioning
confidence: 99%
“…Moreover, a decline in soil and root hydraulic conductance due to soil drying may be an important control mechanism of stomatal closure (Yao et al 2001), and there are several models that simulate water transport in the soilroot-canopy pathway (Grant 2001;Tuzet et al 2003). However, Hirasawa and Hsiao (1999) found that on days of high vapour pressure deficit, leaf photosynthesis reached a maximum in the late morning and then decreased gradually as the day progressed, even though the soil was well irrigated. The midday reduction in stomatal conductance and photosynthesis was likely the result of low leaf water potential caused by high transpiration rates.…”
Section: Introductionmentioning
confidence: 98%