不同栽培方式对棉铃发育的影响

研究地膜覆盖、育苗移栽、露地直播三种栽培方式对不同时期形成的棉铃发育的影响表明:在满足其它生长条件下,栽培方式对同期形成的棉铃发育过程中的外部形态及内部生理变化影响较小,但对单株棉铃各主要性状的发育有明显的影响。地膜棉伏桃比例比移栽棉和直播棉分别增加8％和14％左右,产量分别提高31％和60％左右,与育苗移栽、露地直播比较,地膜覆盖栽培确是棉花生产上获得高产优质的丰产栽培方式。

EFFECTS OF DIFFERENT CULTIVATION METHODS UPON THE DEVELOPMENT OF COTTON BOLLS

The effects of three different cultivation methods such as plastic film covering, transplanting and direct seeding on the development of cotton bolls formed in various periods were studied.Results obtained from the experiment showed that cultivation methods have a little effect on the outer-morphology and the inner physiology change of cotton bolls formed in the same period in the developing process under the contenting of all conditions of cotton bolls development, but cultivation methods have an obvious effect upon the development of each main characteristic of single plant cotton tolls. The ratio of summer cotton boll bearing on cotton cultivated by plastic film is 8% and 14% or so higher than that cultivated by transplanting and direct seeding with the yield of 31% and 60% higher than the both, thus compared with cotton cultivated by transplanting and direct seeding, the plastic film used in cotton cultivation is really a good way to obtain high yield with good quality in cotton production.