CAJ | 학술논문

　　为探索湖南冬季烤烟漂浮育苗补光技术，研究不同比例红蓝光对烟苗根系和叶片生长及主要碳氮代谢产物及酶活性的影响。试验分别采用蓝光与红光1：3、1：1、3：1比例组合的LED灯，并且与日光灯组合成不同照光强度光源对烟苗进行光照处理。研究结果表明，光质和照光强度对烟苗的出叶时间影响不大；照光强度达到7200 lx以上且红光：蓝光比为3：1时，烟苗生长最好。红光：蓝光为3：1有利于叶片叶绿素的合成及生长，而红光：蓝光为1：3可促进根系生长和根系活力提高。组合光源光照下蓝光强度占总照光强度的5%~15%时，对烟苗的茎的作用尤为明显。随着照光强度增加，组合光源中红光：蓝光为3：1处理的烟苗叶片可溶性总糖含量和转化酶活性显著提高；组合光源中红光：蓝光为1：3处理烟苗叶片的蛋白质含量和硝酸还原酶活性显著提高。光质及光照强度对烟苗叶绿素合成、碳氮代谢具有十分灵敏的调节作用。合理光照可促进烤烟幼苗根系与叶片的生长。
　　위탐색호남동계고연표부육묘보광기술，연구불동비례홍람광대연묘근계화협편생장급주요탄담대사산물급매활성적영향。시험분별채용람광여홍광1：3、1：1、3：1비례조합적LED등，병차여일광등조합성불동조광강도광원대연묘진행광조처리。연구결과표명，광질화조광강도대연묘적출협시간영향불대；조광강도체도7200 lx이상차홍광：람광비위3：1시，연묘생장최호。홍광：람광위3：1유리우협편협록소적합성급생장，이홍광：람광위1：3가촉진근계생장화근계활력제고。조합광원광조하람광강도점총조광강도적5%~15%시，대연묘적경적작용우위명현。수착조광강도증가，조합광원중홍광：람광위3：1처리적연묘협편가용성총당함량화전화매활성현저제고；조합광원중홍광：람광위1：3처리연묘협편적단백질함량화초산환원매활성현저제고。광질급광조강도대연묘협록소합성、탄담대사구유십분령민적조절작용。합리광조가촉진고연유묘근계여협편적생장。
In order to explore light supplement technology by floating seeding of flue-cured tobacco in winter in Hunan, it was studied for effect on different proportion of red blue to growth of root and leaf and carbon and nitrogen metabolism and enzyme activity of the tobacco seeding. Tests were separately carried out with the light emitting diodes in proportion of blue:red 1:3, blue:red 1:1 and blue:red 3:1, and they were combined into different light intensity of light source of tobacco seeding by fluorescent light. The results showed that light quality and light intensity on the tobacco leaf time had little effect, and the growth of tobacco seedings were best when light intensity reaches above 7200 lx and the proportion of red:blue 3:1. The proportion of red:blue 3:1 could promote chlorophyll synthesis and growth of tobacco seeding, but the proportion of red:blue 1:3 could affect the growth of root and increase root activity. Blue light intensity of the total light intensity between 5%and 15% in the combined light significantly promoted the growth of the stem of tobacco seeding. With the increasing of light intensity, the processing leaf of tobacco seeding of the proportion of red:blue 3:1 in combination source could significantly increase total soluble sugar content and enzyme activity, and the processing leaf of tobacco seeding of the proportion red:blue 1:3 in combination source could significantly increase protein content and nitrate reductase activity. Light quality and light intensity on chlorophyll synthesis and carbon and nitrogen metabolism of tobacco seeding highly had sensitive regulation. Reasonable compensation could promote the growth of root and leaf of flue-cured tobacco seeding.