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以立地条件相同的成年纽荷尔脐橙、兴津温州蜜柑、沙田柚、尤力克柠檬和罗纹(圆金柑)为材料,探索其花果脱落规律。结果表明,最终着果率与总花蕾量呈极显著负相关(P<0.01);平均单株花果脱落总数量从多到少依次为兴津温州蜜柑>纽荷尔脐橙>沙田柚>圆金柑>尤力克柠檬;平均单株花果脱落总干重从多到少依次为兴津温州蜜柑>纽荷尔脐橙>沙田柚>尤力克柠檬>圆金柑;纽荷尔脐橙、兴津温州蜜柑和沙田柚第一次生理落果数量大于第二次生理落果,尤力克柠檬和圆金柑第二次生理落果数量大于第一次生理落果。因此,纽荷尔脐橙、兴津温州蜜柑和沙田柚应重点防止第一次生理落果,尤力克柠檬和圆金柑应重点防止第二次生理落果。
The law of peach blossom was explored with adult Newhall navel orange, Xing mandarin Satsuma, Shatin pomelo, Youlik lemon and rib (kumquat) on the same site. The results showed that there was a significant negative correlation between the final fruit yield and the total amount of buds (P <0.01). The average number of flowers per plant per plant dropped from more to less in the order: Xinghuatongmo> Newhall navel orange> Shatian pomelo> Kumquat> Youyiku lemon; the average dry weight per plant per plant dropped from as follows: Xingjin Wenzhou Satsuma> Newhall navel orange> Shatian pomelo> Youlich lemon> Kumquat; Newhall navel orange, Xingjin Wenzhou Satsuma And Shatian pomelo first physiological drop fruit number is greater than the second physiological drop fruit, Yurike lemon and kumquat second physiological drop fruit number is greater than the first physiological drop fruit. Therefore, Newhall navel oranges, Xing mandarin oranges, and Shatian pomelo should focus on preventing the first physiological drop-off and Yelike lemon and kumquat should focus on preventing the second physiological drop-off.