Effect of Soil p H on the Growth,Photosynthesis and Mineral Element Content in Own-Rooted Saplings and Grafted Saplings of Blueberry

Chengxiang XU; Yanping MA; Feng GUO

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Effect of Soil p H on the Growth,Photosynthesis and Mineral Element Content in Own-Rooted Saplings and Grafted Saplings of Blueberry

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The adaptation of blueberry to higher soil p H is poor. To explore the effect and probable mechanism of the adaptation of grafted blueberry( Vaccinium spp.) saplings to the soil environment with higher p H value. We took three types of saplings,( i) own-rooted Wufanshu( V. bracteatum),an economical shrub belonging to the same genus and family with blueberry,also known as oriental blueberry,( ii) own-rooted‘Sharpblue’,a southern highbush blueberry( V. corymbosum) cultivar,and( iii) grafted-bluebedrry as experimental materials,which were grown in quartz sand medium for 90 d,irrigated with nutrient solution of three levels of p H values,respectively,i. e. p H 4. 6,p H 5. 8 and p H7. 0. Results showed that root development,shoot growth and dry biomass accumulation of grafted blueberry were significantly better than those of own-rooted blueberry grown in higher p H medium; compared with own-rooted blueberry saplings,leaf chlorophyll content,chlorophyll a/b ratio,chlorophyll fluorescence chemical efficiency and photosynthetic efficiency of grafted blueberry saplings grown in higher p H medium were all significantly improved. Results also showed that mineral element content of leaves,especially Mg and Fe elemental content of grafted blueberry was significantly higher than that of own-rooted blueberry saplings grown in higher p H media. Grafting-propagation of blueberry saplings taking Wufanshu as rootstock significantly enhanced the adaptation of blueberry to soil environment with higher p H value.

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《亚洲农业研究：英文版》 |2017年第011期|P.75-81|共7页
作者
Chengxiang XU; Yanping MA; Feng GUO;
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College of Life Sciences,Zhaoqing University;

Liyang Tianmu Lake Longtan Eco-Technology Valley Co.,Ltd.;

College of Life Sciences,Zhaoqing University;

Liyang Tianmu Lake Longtan Eco-Technology Valley Co.,Ltd.;

College of Life Sciences,Zhaoqing University;

Liyang Tianmu Lake Longtan Eco-Technology Valley Co.,Ltd.;

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Effect of Soil p H on the Growth,Photosynthesis and Mineral Element Content in Own-Rooted Saplings and Grafted Saplings of Blueberry

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