不同調(diào)控措施下烤煙開(kāi)花時(shí)間與碳氮代謝關(guān)系的研究

Effects of Various Treatments on Flowering Time and C/N Metabolism

摘要: 通過(guò)田間試驗(yàn)對(duì)不同調(diào)控措施下烤煙開(kāi)花時(shí)間進(jìn)行了研究。結(jié)果表明，與對(duì)照相比，各處理均能推遲烤煙開(kāi)花時(shí)間，增加有效葉片數(shù)，提高煙葉產(chǎn)質(zhì)量；4個(gè)處理能明顯提高葉綠素含量、NR活性和淀粉酶活性，增強(qiáng)煙株前期氮代謝，有利于個(gè)體形態(tài)構(gòu)建，同時(shí)進(jìn)入旺長(zhǎng)期后可以使淀粉酶活性緩慢上升，抑制其過(guò)早進(jìn)入生殖生長(zhǎng)，使碳氮代謝更協(xié)調(diào)，從而達(dá)到控制和推遲早花的目的。

Abstract: A field experiment with four treatments and one check to study flowering time of flue-cured tobacco was conducted. The results showed that all treatments deferred flowering time, increased effective leaf number, yield, and output. The four treatments also increased remarkably chlorophyll content, NR and amylase activities, and N metabolism of early stage of tobacco plant, which was helpful for tobacco plant body building, and later in blooming stage, which could cause amylase activity increase slowly, thus deferred reproductive growth and early flowering.

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