In order to ascertain the relationship between photosynthetic characteristics and soil water content of grape in different growth periods.Centennial seedless grape was used to study the photosynthetic and fluorescence characteristics at three different water treatment levels(The soil moisture treatmentⅠ is 50%,treatmentⅡ is 65%,treatmentⅢ is 80%)The results showed that:The photosynthetic rate and irrigation is positively correlated at new shoot growth period,fruit setting period and veraison.The photosynthetic rate of the treatment Ⅱof medium irrigation amount is the highest in after picked.The water use efficiency of different period is not the same,water use efficiency and irrigation quantity was negatively correlated in new shoot growth period and after picked while fruit setting period and veraison is contrary.With the overall,the fluorescence parameters changes of Centennial seedless in different growth periods under different water conditions were positively related to irrigation amount.The comprehensive photosynthetic performance(PI)and photosynthetic parameters changes are similar.PI in the first three periods(New shoot growth period,fruit setting period and veraison) showed positive correlation with moisture;the treatment Ⅱof photosynthetic performance is the best after picked.Comprehensive indexes of the results were as follows:the irrigation of treatment Ⅲ is suitable for Centennial seedless in shoot growth period;the irrigation of treatmentⅡ is suitable for centennial seedless in fruit setting period,veraison and after picked.
ZHOU Xing-ben
,
LIU Shi-chong
,
GUO Xiu-wu
,
WANG Cong-cong
,
LI Kun
,
GUO Yin-shan
,
LI Cheng-xiang
. Effects of Photosynthetic and Fluorescence Characteristics of Centennial Seedless in Different Water Conditions[J]. Acta Agriculturae Boreali-Sinica, 2014
, 29(4)
: 169
-174
.
DOI: 10.7668/hbnxb.2014.04.030
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