【摘要】 调查了8个龙眼品种发生成花逆转的情况,发现松风本和立冬本不易发生成花逆转;普明庵次之,油潭本、九月乌、水南1号、乌龙岭和东壁容易发生成花逆转.研究了成花逆转容易的乌龙岭和成花逆转不容易的立冬本龙眼品种花芽形态分化期秋梢叶片矿质营养的变化.叶片K含量高、N含量和N/K低的秋梢抽生的花穗不易发生成花逆转;Ca可能有利于成花,减少成花逆转.更多还原

【Abstract】 Flowering reversion of 8 longan(Dimocarpus longan Lour.) cultivars was investigated.Songfengben and Lidongben were less prone to flowering reversion,followed by Puming′an,whereas Youtanben,Jiuyuewu,Shuinan 1,Wulongling and Dongbi were prone to flowering reversion.Flowering reversion unsusceptible Lidongben and susceptible Wulongling longan cultivars were used in this study.The changes of mineral nutrients in Lidongben and Wulongling longan leaves from autumn shoots during flower bud morphological differentiation were investigated.Autumn shoots,whose leaves had high K content,low N content and N/K ratio,were less prone to produce leafy panicles.Our results showed that Ca probably promoted flower bud formation and decreased flowering reversion,but further studies were needed to elucidate its function.更多还原