摘要
为明确不同时间催花处理对‘台农17号’菠萝果实的产量、品质及关键内源激素的影响,通过大田试验分别于2022年8月及9月中旬进行不同时间催花处理(2.0%电石溶液间隔1 d于夜间灌心3~5 s),统计催花后菠萝的正常果率、植株干物质、产量品质及内源激素含量等差异。结果表明:9月中旬催花处理菠萝果实成熟时长约比8月中旬催花处理的长30 d;其无冠、多冠等畸形果占比相较8月中旬催花少31.33%;9月中旬催花处理干物质积累量、产量、糖酸比及可溶性蛋白含量分别比8月中旬催花处理提升了6.63%、25.75%、23.73%、50.36%,可滴定酸显著降低了14.71%;不同果型果实的糖组分差异不大,均以蔗糖积累为主;不同时间催花处理对正常果、无冠果实的内源激素都有显著性影响,相较8月中旬催花处理,9月中旬催花处理显著降低了无冠果的赤霉素、脱落酸、反式玉米素含量,分别降低了23.81%、41.67%、17.54%,无冠果茉莉酸含量显著提高了120.93%;显著降低了正常果脱落酸、水杨酸含量,分别降低了18.18%、54.81%,正常果反式玉米素含量显著提高了27.91%。综合分析认为,9月中旬催花的‘台农17号’菠萝果实品质和产量更好。
In order to clarify the effects of flower-forcing treatment at different time on the yield,quality and key endogenous hormones of fruits of pineapple‘Tainong 17’,flower-forcing treatment was carried out at different time in August and mid-September 2022.Pineapple plants were treated with 2.0%calcium carbide solution at night for 3-5 s at an interval of 1 day in the field.The normal fruit rate,plant dry matter,yield quality and endogenous hormone content of pineapple after forced flowering were determined and their differences were statistically analyzed.The results showed that the maturing time of pineapple fruits in mid-September was about 30 days longer than that in mid-August,and that the proportion of deformed fruits without crowns and multiple crowns in mid-September was 31.33%less than in mid-August.The dry matter accumulation,yield,sugar-acid ratio and soluble protein content of the fruits in the mid-September flower-forcing treatment increased by 6.63%,25.75%,23.73%and 50.36%,respectively,and the titratable acid decreased by 14.71%.Compared with the flower-forcing treatment in mid-August,the contents of gibberellin,abscisic acid and trans-zeatin in the fruit of the mid-September treatment were significantly reduced,and the contents of jasmonic acid in the deformed fruit without crowns were significantly increased by 120.93%,and the abscisic acid content in the normal fruits was significantly reduced.In the normal fruits the content of salicylic acid was decreased by 18.18%and 54.81%,respectively,and the content of trans-zeatin was significantly increased by 27.91%.Comprehensive analysis showed that the pineapple‘Tainong 17’was higher in fruit quality and yield when forced to flower in mid-September.
作者
吴永旺
付山
梁邺
何善林
韩泽永
姚金双
殷涛
李婷玉
WU Yongwang;FU San;LIANG Ye;HE Shanlin;HAN Zeyong;YAO Jinshuang;YIN Tao;LI Tingyu(School of Tropical Agriculture and Forestry,Hainan University,Haikou,Hainan 570208,China;Hainan TianDiRen Ecological Agriculture Co.,Ltd,Haikou,Hainan 570100,China)
出处
《热带生物学报》
2024年第3期323-331,共9页
Journal of Tropical Biology
基金
共建绿色凤梨品牌及创新型人才培育合作协议(RH2100006535)
海南高附加值作物专用肥开发及示范(RH2200004932)。
关键词
菠萝
不同时间催花处理
品质
产量
内源激素
pineapple
flower forcing treatment at different time
quality
yield
endogenous hormones
