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在小麦栽培中,诊断不同生育时期的苗情。是制订不同栽培管理措施的重要依据之一,而进行苗情诊断,又必须测定不同时期的小麦单株叶面积和叶面积系数;研究不同栽培措施(如追肥、浇水、中耕镇压、喷洒矮壮素等等)对小麦生长发育的影响,需要测定小麦不同部位叶面积的大小;选用不同优良品种,也需要了解各品种的叶片生长特点,进行叶面积测定;在小麦育种工作中,研究不同亲本材料叶片的遗传规律,也需要测定亲本和后代的叶面积变化。但是,由于测定叶面积的工作量很大,运算又十分麻烦,因而在小麦生产和研究中都不便于应用。为了简化测定叶面积的工序,提高测定速度,减少
In the wheat cultivation, the diagnosis of different growth stages of the seedling. Is to develop different cultivation and management measures, one of the important basis for the diagnosis of seedling, but also to determine the different periods of wheat leaf area per plant and leaf area coefficient; study of different cultivation measures (such as top dressing, watering, And so on) on wheat growth and development, the need to determine the size of different parts of wheat leaf area; selection of different good varieties, but also need to understand the characteristics of the leaves of various varieties of growth, leaf area determination; in wheat breeding work, the study is different The genetic law of the leaves of the parent material also requires the determination of the leaf area changes of the parents and offspring. However, the large amount of work required to determine the leaf area and the cumbersome operation make it inconvenient to use in wheat production and research. In order to simplify the process of measuring the leaf area, the measurement speed is increased and decreased