大棚栽培条件下葡萄叶片净光合速率与其他生理、生态参数的灰色关联分析

根据田间测定资料,应用灰色系统理论,分析了促成-避雨栽培(Forcing-CultivationtoRain-Shelter-Cultiva-tion,F-C&R-S-C)大棚内外的葡萄品种美人指(Vitisviniferacv.ManicureFinger)和藤稔(Vitisvinifera×V.labruscacv.Fujiminori)净光合速率(Pn)与主要生态因子[大气CO2浓度(Ca)、光合有效辐射(PAR)、水汽压(Vp)、气温(Ta)、蒸腾速率(Tr)和叶温(Tl)]的灰色关联系数及关联度,明确了影响不同栽培阶段大棚内净光合速率诸生态因子间的主次关系。结果表明,促成阶段(果实发育期)对大棚内美人指和藤稔品种净光合速率影响最大的分别是叶温和光合有效辐射,露地对照分别是光合有效辐射和蒸腾速率;避雨阶段(果实成熟期),与大棚内2品种净光合速率关系最密切的皆是叶温,同期露地对照分别是蒸腾速率和叶温。

Gray relational grade analysis of ecological and other physiological characteristics to leaf net photosynthetic rate of grapevine under plastic-greenhouse cultivation

By using the relational grade analysis of grey system theory, the relational gray coefficient and grade on leaf net photosynthetic rate(Pn) of two grapevine cultivars [Manicure Finger & Fujiminori, which were cultivated inside and outside plastic greenhouse under Forcing-Cultivation(F-C) to Rain-Shelter-Cultivation(R-S-C) )and main ecological factors(CO2 concentration of atmosphere, PAR, Vp, Ta, Tr, Tl)] were analyzed. The result showed that: (1)During F-C period, the factor which seriously influenced leaf Pn of Manicure Finger was Tl(inside greenhouse) and PAR(outside greenhouse), and PAR(inside greenhouse)and Tr(outside greenhouse)of Fujiminori; (2)During R-S-C period, the factor which seriously influenced leaf Pn of Manicure Finger was Tl(inside greenhouse) and Tr(outside greenhouse), and Tr(inside greenhouse and outside greenhouse) for Fujiminori.