论文部分内容阅读
本文分析了不同品种和不同栽培条件下薏苡的干物质积累和分配特性，结果表明，薏苡一生的干物质积累动态表现为“Ｓ”型曲线，但不同品种之间差异较大，杂交种表现出较强的杂种优势，峨嵋黑壳品种较长春黑壳品种表现出更强的适应性和旺盛的生命力；全生育期都处于淹水条件（水生栽培）的植株不及栽培于湿润旱地条件（旱生栽培）的长得好，干物质积累量较旱生栽培的低；干物质在各器官中的分配因生育时期而异，亦在一定程度上受栽培条件影响，生育后期主要分配到茎秆和穗子，水生栽培下的植株根系特别发达，根系的干物质分配百分率较高。
In this paper, the dry matter accumulation and distribution characteristics of Coix lachryma - jobi under different cultivars and cultivars were analyzed. The results showed that the dynamic changes of dry matter accumulation in Coix lachryma - jobi (“Coix”) were “S” curve, but the differences among different cultivars were significant Strong heterosis, Emei black shell species longer spring black shell varieties showed more adaptability and strong vitality; all growth stages are in submerged conditions (aquatic) plants cultivated in wetland conditions (drought Cultivation) grew well, and the dry matter accumulation was lower than that of xerophytic cultivation. The distribution of dry matter in various organs varied with different growth stages, and was also affected by the cultivation conditions to a certain extent. Ear, aquatic plants under the root system developed particularly well, the root distribution of higher percentage of dry matter.