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本文研究草地式果园多枝栽培番石榴的产量.将大约一龄的“Centeno Proli-fic”品种植株按27O00株/公顷(60×60cm)、37000林/公顷(90×30cm)以及73000株/公顷(45×30cm)三种规格超高度密植.定植后三个月,再用几种生长调节剂(丁酰肼、乙烯利、矮壮素阳离子、萘乙酸、paclobutrazol、地乐胺和JF7559)分别以250、500、1500、3000ppm浓度进行处理.种植密度显著影响植株高度、分枝数目及长度、开花和果实的数量、重量以及产量等.几种生长调节剂处理对上述性状除了株高以外无甚影响.2700株/公顷(60×60cm)的估算产量是30.6吨/公项,为番石榴草地式果园多枝栽培的最佳结果.在几种生长调节剂处理中,高浓度的乙烯利(500—3000ppm)对矮化植株和增加花朵数十分有效.本研究结果为发展番石榴草地式果园栽培法提供了初步资料.
In this paper, we studied the yield of guava cultivated in a multi-branch orchard with “Centeno Proli-fic” about one year old at the density of 2700 / hectare (60 × 60cm), 37000 / hectare (90 × 30cm) and 73000 / Hectare (45 × 30cm) three specifications of ultra-high density close planting three months after planting, and then several growth regulators (butyrylhydrazide, ethephon, chlorogenic acid, naphthalene acetic acid, paclobutrazol, den received amine and JF7559) Respectively at 250,500,1500,3000ppm concentration.Planting density significantly affect the plant height, the number and length of branches, flowering and fruit number, weight and yield, etc .. Several growth regulator treatment of the above characters in addition to plant height With no effect on the estimated yield of 2700 plants / hectare (60 × 60 cm) of 30.6 t / h, which is the best result for the multi-branch cultivation of guava grass-type orchards.In several growth regulator treatments, high concentrations of ethylene Lee (500-3000ppm) is effective for dwarfing plants and increasing the number of flowers.The results of this study provide preliminary information for the development of guava grass orchard cultivation methods.