高产油茶夏旱期不同经营措施对其果形生长的影响

Effects of different management measures on the fruit shape growth of high yield Camellia oleifera under during the summer drought period

开展夏旱期间灌溉、覆膜、盖草措施对盛产期赣无7个油茶无性系果实形态生长影响的试验与研究。结果表明:油茶7个品系在灌溉、覆膜、盖草技术措施下七月不同生长阶段的果径与果高生长量均大于对照;不同抗旱措施对果径与果高生长的效果为:灌溉A>覆膜>灌溉B>盖草;油茶7月中旬的果径生长量最大,与7月上旬的果径生长差异显著;7月上旬的果高生长量最大;高产油茶各品系在灌溉、覆盖、覆草下的果形指数差异显著,灌溉能促进果形指数增大,果形圆满。油茶果形指数随时间变大。研究结果为高产油茶七月果实膨大期生产管理与园艺化栽培提供科学依据。

With the measures of irrigation,film mulching,grass cover in the summer drought periods,the experiments on seven strains of Ganwu high yield Camellia oleifera have been carried out,and the effects of different cultivation measures on fruit shape growth of the seven strains in the full fruiting period were studied.The results show that the fruit diameter and fruit high growth of the seven Camellia oleifera strains all exceed the control under three cultivation measures during the different growth stage in July;The effects of drought-resisting measures on the fruit diameter and high fruit growth sequenced by magnitude as followings：irrigation（A） plastic membrane mulching 〉irrigation（B） 〉mulching with straw;There was a biggest fruit diameter growth during the middle of July,there was a significant difference of fruit diameter growth between the first ten days and the middle ten days of July,there was a biggest fruit high growth during the first ten days of July;there were the significant differences of shape index with the measures of irrigation,film cover and grass cover among the seven high yield Camellia oleifera strains,irrigation could enlarge the shape index,and make fruit shape more round and full,and increase the shape index with time.The researching results will provide a scientific basis for the management of fruit rapid-expanding stages production in July and the horticulture cultivation.