不同留葉數(shù)對(duì)烤煙新品種NC297 生長(zhǎng)及產(chǎn)質(zhì)量的影響
Effects of Apparent Leaf Number on Growth, Yields and Quality of New Flue-cured Tobacco Variety NC297
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摘要: 試驗(yàn)研究了不同留葉數(shù)對(duì)NC297 農(nóng)藝性狀、經(jīng)濟(jì)性狀和內(nèi)在化學(xué)成分等方面的影響,。結(jié)果表明,，隨著留葉數(shù)的增加，株高,、節(jié)距呈逐漸增加趨勢(shì),，莖圍呈遞減趨勢(shì)；留葉數(shù)20～22 片的株型較好,；留葉數(shù)對(duì)中,、下部葉片的長(zhǎng)寬影響較小，上部葉片則是隨著留葉數(shù)的增加而減小,。隨著留葉數(shù)的增加產(chǎn)量呈遞增趨勢(shì),，而均價(jià),、上等煙比例、中等煙比例則呈遞減趨勢(shì),；以留葉20～22 片/株經(jīng)濟(jì)性狀最好,；留葉數(shù)22 片/株的化學(xué)成分比較協(xié)調(diào)。Abstract: A field experiment was conducted to investigate the effects of different apparent leaf number on agronomic trait, economic character and content of chemical components of flue-cured tobacco variety NC297. The results were as follows: The plant height and the length of internodes increased while the stalk circumference decreased gradually with the increasing number of apparent leaves. There was a little effect on the length and width of cutters and lower leaves. With the increase of apparent leaf number, the length and width of upper leaves decreased. The favorable plant shape appeared when the apparent leaf number ranged 20-22 per plant. The average price, the rate of high and middle class leaf enhanced gradually while the yields decreased with the apparent leaf number. The economic characters performed better when the apparent leaf number ranged 20-22 per plant. The chemical components were harmonious when apparent leaf number was kept at 22 per plant.
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