摘要
本研究以新疆吐鲁番地区主栽品种‘无核白’为研究对象,通过测定葡萄园小气候及叶片光合日变化、叶绿素荧光参数的变化,探讨不同光伏板铺设密度对葡萄叶片光合及叶绿素荧光特性的影响,以期为葡萄园铺设光伏板时选择合适密度提供理论依据。设置6种试验处理,分别为铺设光伏板间隔为0.5 m(C1)、1.0 m(C2)、1.5 m(C3),始终处于板下阴影处(Cy),不铺设光伏板(CK)以及传统小棚架(NEA)。结果表明,C2的温度和光合有效辐射均显著高于Cy,温度显著低于CK和NEA,而光合有效辐射与CK和NEA差异不显著;各处理Pn下降的同时Ci升高,说明‘无核白’光合作用的限制因子主要是非气孔限制。综合来看,在本试验条件下光伏板间隔1.0 m为最适铺设密度。
In this study, the main cultivar 'Thompson Seedless' in Turpan, Xinjiang was taken as the research object. Through detecting the change of vineyard microclimate, diurnal variation of photosynthesis and chlorophyll fluorescence parameters, the effects of different photovoltaic panel laying densities on photosynthetic and chlorophyll fluorescence characteristics of grape leaves were discussed, so as to provide theoretical basis for choosing the right photovoltaic panel density when laying photovoltaic panels in the vineyard. Six kinds of experimental treatments were set up, which were 0.5 m(C1), 1.0 m(C2), 1.5 m(C3) for the space of photovoltaic panels, always in the shadow of panel(Cy), no photovoltaic panel(CK) and in the traditional small scaffolding(NEA). The results showed that the temperature and photosynthetic active radiation(PAR) of C2 were significantly higher than those of Cy, and the temperature was significantly lower than that of CK and NEA, while the differences of PAR of C2 with CK and NEA were not significant. The decrease of Pn and the increase of Ci in all treatments indicated that the limiting factor of photosynthesis of 'Thompson Seedless' was mainly non-stomatal limitation. Overall, under this test condition, the optimum laying density of photovoltaic panels was 1.0 m.
引文
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