| Effects of different irrigation patterns on root activity, new shoot growth, fruit yield and quality of red Fuji apple |
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| DOI：10.7606/j.issn.1000-7601.2010.05.34 |
| Key Words: irrigation pattern red Fuji apple root activity new shoot growth fruit yield and quality |
| Author Name | Affiliation | | YANG Sumiao | College of Forestry, Agricultural University of Hebei, Baoding, Hebei 071000, China | | LI Baoguo | College of Forestry, Agricultural University of Hebei, Baoding, Hebei 071000, China | | QI Guohui | College of Forestry, Agricultural University of Hebei, Baoding, Hebei 071000, China | | ZHANG Xuemei | College of Forestry, Agricultural University of Hebei, Baoding, Hebei 071000, China | | GUO Suping | College of Forestry, Agricultural University of Hebei, Baoding, Hebei 071000, China |
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| Abstract: |
| In order to screen out the most effective water-saving irrigation patterns suitable for orchards in gneiss areas of the Taihang Mountains, a field experiment was conducted there with Changfu-2 apple as tested material to evaluate the effects of different irrigation patterns, i.e, drip irrigation, micro-sprinkler, small-pipe flow, flood irrigation and non-irrigation on roots activity, new shoot growth, fruit yield and quality of red Fuji apple. The results showed that, in the case that the total irrigation amount of drip irrigation, micro-sprinkler
and small-pipe flow were respectively reduced by 54.2%, 53.1% and 54.8% compared to that of flood irrigation, the root activity under small-pipe-flow irrigation reached the highest in June 22 that was up to 276.20 μg/(g·h), and the root activity under drip irrigation, flooding irrigation and micro-sprinkler irrigation reached the highest in July 21, while that of non irrigation reached the highest in May 20 then decreased gradually with the treated time going on. And the average root activity under small-pipe flow was the highest that up to 260.19 μg/(g·h), which was significant higher than that of other treatments; in the end of September new shoot lengths under flood irrigation, micro-sprinkler irrigation, drip irrigation, small-pipe flow and non-irrigated were respectively up to 60.86 cm, 48.25 cm, 40.84 cm, 41.65 cm and 31.81 cm; the maximum of yield per plant was appeared at flood irrigation treatment and the amount was 50.33
kg, there was no significant difference with small-pipe flow and drip irrigation, the maximum of sugar-acid ratio was appeared at small-pipe flow and the number was 44.28, significantly higher than under other treatments. The experiment demonstrated that small-pipe flow irrigation was a high-quality efficient irrigation pattern in gneiss mountainous orchards, which could maintain higher root activity, balance growth and keep higher yield and quality of fruit. |
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