Title: Effects of different irrigation patterns on root activity,new shoot growth,fruit yield and quality of red Fuji apple
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.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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