title: [Effects of decapitation on growth, uptake and distribution of potassium in tobacco].
abstract: Compared with intact plants, decapitation did not cause increase in dry weight of tobacco plant and in potassium accumulation 8 weeks after the treatment. In intact plants, about 1/3 of assimilation and potassium were transported into the top, and only about 1/3 of those deposited in the leaves. Decapitation resulted in about 1/2 of assimilation and potassium distributing in the leaves, so it was more effective. Application of NAA on the stump of the stem did not influence leaves yields, but accumulation of potassium in the upper and middle leaves was enhanced.
authors.affiliation: Key Laboratory of Plant Nutrition of Ministry of Agriculture, China Agricultural University, Beijing 100094.
authors.forename: Lizhuo
authors.initials: L
authors.lastname: Guo
authors.forename: Fusuo
authors.initials: F
authors.lastname: Zhang
authors.forename: Chunjian
authors.initials: C
authors.lastname: Li
mesh_terms: D000383:Agriculture / Q000379:methods*; D011188:Potassium / Q000378:metabolism*; D014026:Nicotiana / Q000254:growth & development / Q000378:metabolism*
chemical_list: D011188:Potassium