Irrigation scheduling in a mature peach orchard using tensiometers and dendrometers |
| |
Authors: | Shao-Hua Li Jean-Gérard Huguet Claude Bussi |
| |
Institution: | (1) INRA-SRIV, Domaine de Gotheron, 26320 St Marcel-les-Valence, France;(2) INRA, Station d'Agronomie, Centre de Recherche Agronomique d'Avignon, 84140 Montfavet, France;(3) INRASRIV, Domaine de Gotheron, 26320 St Marcel-les-Valence, France;(4) Present address: Horticulture Department, Huazhong Agricultural University, Wuhan, The People's Republic of China |
| |
Abstract: | Three trickle irrigation schedules, two of which were scheduled according to soil water potential ( soil) (tensiometer method) and daily stem contraction (DSC) (dendrometer method) respectively and the other one was a schedule of restricted water supply, were applied to a mature peach orchard.The annual water application based on soil was greater than that based on DSC. However, tree growth, fruit size and leaf water potential (leaf) on the trees in the dendrometer scheduling plot did not differ from those in the tensiometer scheduling plot while the premature fruit drop and fruit bud initiation were greatly different. The restricted water supply treatment limited significantly both tree and fruit growth. In addition, the lower leaf was observed on the trees in this plot.Further study shows that use of the dendrometer method for scheduling irrigation satisfies the water needs of the plant and that the tensiometer method is less accurate.Abbreviations leaf
leaf water potential
- soil
soil water potential
- DSC
daily stem contraction
- LVDT
linear variable displacement transducer
- PET
potential evapotranspiration |
| |
Keywords: | Prunus persica daily stem contraction soil water potential leaf water potential tree growth fruit size |
本文献已被 SpringerLink 等数据库收录! |
|