Effect of Illumination Time on Fat Content of Soybean
In addition to being determined by its genetic basis, soybean production is also affected by a variety of ecological factors, such as temperature, light, precipitation, and fertilizer supply during the reproductive period, especially in the reproductive growth period. It will produce very high chemical quality and yield for soybeans. Great influence. Studies have shown that light is the dominant factor in the response factor of soybean to light-temperature comprehensive conditions. At present, studies have shown that light intensity has a great influence on the fat and protein content of different quality types of soybean. The effect of light time on the chemical quality of soybeans has also been reported. In the course of our research, we will use light incubators to set the intensity of illumination with different intensities. The light incubator is an artificial climate box that is artificially set to simulate the natural environment.
We studied the two varieties of soybean and found that: the effect of light time on the fat content of two varieties of soybeans during the seedling stage was different. Under the same treatment, the fat content of the two varieties was significantly different (P<0.05), but the two varieties were treated separately. The difference is not significant. With the shortening of the illumination time, the fat content of high-yield soybean “Dongnong 434†increased first and then decreased. The content of fat was the highest in light exposure for 14 hours, which was 22.68%, which was 1.1% higher than natural light (CK), followed by 11 hours of illumination. The fat content was 22.13%, which was 0.6% higher than that of CK. The fat content of soybean at day 14, 11, and 8 was higher than that of natural light (CK), but the fat content was lower than that of the control when the photoperiod was shorter than 5 hours. At this point the light box provides the lighting time and light intensity we need. In addition to natural lighting, the fat content of each light treatment time gradually decreased with the shortening of the light time. Appropriately shortening the photoperiod increased the fat content of high-protein soybean "Dongnong 42". The fat content of each light treatment time was higher than that of natural light, and the highest fat content was 11.84% at 11h, which was 0.9% higher than that of natural light. %; followed by light 14h, an increase of 0.7% compared with CK. The above results show that the proper shortening of the light time has a tendency to increase the fat content of soybeans.
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