Abstract：Taking‘Chongjiao No.1’as test material，this paper studied the effects of different concentration，applying times and time of natural growth regulator triacontanol on stem swelling period，yield and quality of Zizania latifolia．The results indicated that during the growth stage of double-harvesting Z. latifolia，applying 0.5 mg · L-1 triacontanol on stem swelling of summer Z. latifolia had more effect than on autumn Z. latifolia．The yield of first-day harvested Z. latifolia was 13 times of the contrast without applying triacontanol．The total yield was increased 1.1 times．However，the high concentration triacontanol treatment had no promoting effect on the total yield of summer and autumn autumn Z. latifolia．Applying low concentration （≤ 0.5 mg · L-1） triacontanol close to or during stem swelling period could inhibit the stem swelling of summer Z. latifolia．The total output decreased by 15.8%-69.7% than that of the contrast．But the dry matter content of Z. latifolia increased by 1.2%-39.7%．Applying 0.5 mg · L-1 triacontanol close to stem swelling period could increase the contents of protein，amino acid，soluble sugar，reduced ascorbic acid and cellulose of Z. latifolia，improving its nutritional quality．
李芳，张珏锋，钟海英，陈建明. 三十烷醇不同施用方式对茭白孕茭期、产量和品质的影响[J]. 中国蔬菜, 2022, 1(12): 74-79.
LI Fang，ZHANG Juefeng，ZHONG Haiying，CHEN Jianming. Effects of Different Triacontanol Applying Methods on Stem Swelling Stage，Yield and Nutritional Quality of Zizania latifolia. China Vegetables, 2022, 1(12): 74-79.
