不同品种烤烟腺毛分泌物及部分有机酸、高级脂肪酸的比较分析

为探究同一生态及栽培条件下，不同烤烟品种腺毛及其腺毛分泌物的代谢特点，以贵州主栽烟草品种（K326、红花大金元、云烟87、云烟97）为材料，测定并比较分析烟叶腺毛密度、石油醚提取物、西柏三烯二醇、部分有机酸、部分高级脂肪酸含量。结果表明，①试验各品种烤烟腺毛密度、α-西柏三烯二醇、β-西柏三烯二醇含量随着生育期的增加均呈先增加后降低趋势；石油醚提取物含量随着生育期的增加而增加。②各时期腺毛密度整体表现为红花大金元>K326>云烟87>云烟97，成熟期云烟87腺毛脱落率相对较低。③α-西柏三烯二醇、β-西柏三烯二醇、(α+β)-西柏三烯二醇含量整体表现为云烟87>红花大金元>K326>云烟97。④云烟87的苹果酸、油酸、亚油酸以及石油醚提取物含量高于其他3个品种，柠檬酸含量在烤烟生长后期表现为云烟97最高，K326最低。⑤团棵期，苹果酸含量与短柄腺毛、β-西柏三烯二醇呈正相关，柠檬酸与α-西柏三烯二醇呈正相关；旺长期，石油醚提取物与长、短柄腺毛呈正相关；成熟期，苹果酸与短柄腺毛呈正相关，柠檬酸与短柄腺毛、苹果酸呈负相关，长柄腺毛与亚油酸呈负相关。综上，红花大金元的腺毛密度与石油醚浸提物含量均较高，云烟87的α-西柏三烯二醇、β-西柏三烯二醇、(α+β)-西柏三烯二醇、苹果酸、油酸、亚油酸含量、成熟期腺毛脱落率均较高。因此，推荐贵州地区种植云烟87和红花大金元。

Analysis of Glandular Hair Secretion,Some Organic Acids and Higher Fatty Acids in Different Varieties of Flue-cured Tobacco

In order to explore the metabolic characteristics of glandular hairs and glandular hairs secretions of different Fluef|cured tobacco varieties under the same ecological and cultivation conditions, and the relationship between glandular hairs and glandular hairs secretions and some organic acids and higher fatty acids, the varieties suitable for cultivation in Guizhou were screened out.The main varieties of Guizhou (K326, Safflower Dajinyuan, Yunyan 87, Yunyan 97) were used as materials to bacco leaf glandular hair density, petroleum ether extract, cypress triene diol, some organic acids and some higher fatty acid content to determine and compare.The results showed:①the gland hair density, α-cetotrienediol and β-cetotrienediol content of flue-cured tobacco increased first and then decreased with the increase of growth period;the content of petroleum ether extract increases as the growth period increases.②the overall density of glandular hair is Honghua Daikin> K326> Yunyan 87> Yunyan 97;at the maturity stage, the rate of glandular hair loss of Yunyan 87 was relatively low. ③α-cembrietrienediol, β-cembtrionediol, (α + β)-cembtriene diol content as a whole cloud smoke 87>Honghua Daikin> K326> Yunyan 97. ④ the content of malic acid, oleic acid and linoleic acid in Yunyan 87 is higher than that of the other three varieties.The overall content of citric acid was Yunyan 97>Honghua Daikin and Yunyan87>K326. ⑤ the content of malic acid in the stalk period was positively correlated with the short-handed glandular hairs and β-cetotrienediol.Citric acid was positively correlated with α-cetotrienediol;in the long-term, petroleum ether extract was positively correlated with long and short-handed glandular hairs;at maturity, malic acid was positively correlated with short-handed glandular hairs.Citric acid was negatively correlated with short-handed glandular hairs and malic acid, and long-handled glandular hairs were negatively correlated with linoleic acid.α-cetotrienediol, β-cetotrienediol, (α+β)-cembtrienediol, malic acid, oleic acid, linoleic acid content, and shedding rate of mature glandular hairs in integrated tobacco leaves,it was recommended to plant Yunyan 87 and Honghua Daikin.