根系分区灌溉对设施油桃生长发育、产量及品质的影响

试验研究根系分区灌溉对设施油桃生长发育、产量及品质的影响结果表明,根系分区交替灌溉和根系分区固定灌溉处理可抑制油桃新梢生长,果实成熟期均较常规灌溉提前,平均单果重略低于常规灌溉,但产量基本未受影响,果实硬度降低,而可溶性固形物含量高于常规灌溉,根系分区交替灌溉和固定灌溉比常规灌溉节水50%,且水分利用效率提高。根系分区交替灌溉与根系分区固定灌溉相比,前者处理果实除硬度低于后者外,其平均单果重、产量、可溶性固形物含量和水分利用效率均高于后者。

Influences of partial root-zone irrigation on the growth and development,yield,and quality of nectarine in greenhouse

The influences of partial root-zone irrigation on the growth and development,yield,and quality of nectarine in greenhouse were studied.The results show that alternative partial root-zone irrigation(APRI)and fixed partial root-zone irrigation(FPRI)can inhibit the new shoots growing and advance the maturity of fruits than conventional irrigation(CI).The average fruits weight and fruits rigidity obtained in APRI and FPRI treatments are reduced,but the yield is not influenced,and the total soluble solids is increased.Water saving of 50% is achieved in APRI and FPRI,and water using efficiency(WUE)is increased.Compared with FPRI,the average fruits weight,yield,total soluble solids and water using efficiency of APRI are all increased,except of fruit rigidity.