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Cut Flower Characteristics and Growth Traits under Salt Stress in Lily Cultivars

机译：百合品种盐胁迫下的花特征和生长特征

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摘要

Salt stress is a major constraint of crop productivity because it reduces yield and limits the expansion of agriculture. This study investigated salt tolerance in 26 cultivars of cut lilies (Lilium hybrids) by examining the effect of salt stress on the growth and morphological characteristics of flowers and leaves and their physiological properties (chlorophyll a fluorescence). Salt stress significantly affected the growth and development of cut lilies. Canonical discriminant analysis indicates that the middle leaf width, number of flowers, first flower diameter, petal width, and chlorophyll a fluorescence were correlated with salt stress, whereas plant height, the middle leaf length, days to flowering, and sepal width were less affected by the stress. The cultivars examined were divided into three groups: Group 1 included the salt-sensitive cultivars, which failed to develop normal flowers; Group 2 included cultivars sensitive to salt stress but tolerant to osmotic stress; and Group 3 was the salt-tolerant group, which developed commercially valuable flowers. In conclusion, the cultivars contained a variable range of cut flower characteristics and growth traits that can be employed for lily breeding programs and as material for molecular mechanisms and signaling networks under salt stress.
机译：盐胁迫是作物生产率的主要约束，因为它降低了产量并限制了农业的扩张。本研究通过检查盐胁迫对花叶和叶片生长和形态特征的影响及其生理特性（叶绿素A荧光）来研究26种切割百合（植物杂交种）的耐盐性。盐胁迫会显着影响削减百合花的生长和发展。规范判别分析表明，中间叶宽度，花朵数量，第一花直径，花瓣宽度和叶绿素与盐胁迫相关，而植物高度，植物高度，开花的天数，萼片宽度较小受到压力。检查的品种分为三组：1组包括盐敏感品种，未能开发正常花;第2组包括对盐胁迫敏感的品种，但耐受渗透胁迫;第3组是耐盐基团，其开发了商业上有价值的花朵。总之，品种含有可变的削减花特征和生长性状，可用于百合繁殖计划和盐胁迫下的分子机制和信号网络的材料。

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