Computational Molecular Biology 2025, Vol.15, No.1, 26-37 http://bioscipublisher.com/index.php/cmb 30 Planting potatoes, soil moisture is a technical task. Drip irrigation, a sophisticated watering method, is particularly effective-it can keep the soil at the right moisture level and prevent nutrient loss (Wichrowska et al., 2021). It's interesting that this not only increases the yield of tubers, but also improves their quality. Starch is fuller, protein is richer, and even antioxidants, which are good things, have increased. However, on the other hand, soil that is too dry or too wet is not acceptable. We need to balance it like taking care of a baby. So, to grow good potatoes, having good varieties alone is not enough. We also need to put effort into soil moisture management, creating a comfortable environment that is neither dry nor wet, so that the tubers can grow big and well. 4.2 Nutritional transport and metabolism Nitrogen and phosphorus fertilizers are like side dishes to potatoes-too little is not good, but too much is bad. Especially nitrogen fertilizer, when used correctly, can increase the yield of tubers rapidly (Nurmanov et al., 2019). But if you apply too much by hand, trouble will come: the plants will focus on growing taller, while the tubers will be delayed. This is like feeding a child. The nutrition must be balanced-the nitrate nitrogen in the soil should be kept at just the right level, neither starving the plant nor overeating it. Interestingly, although phosphorus fertilizer is not as eye-catching as nitrogen fertilizer, the tubers still won't grow well without it. So when it comes to fertilizing, one really needs to be meticulous. A little more leads to fertilizer, and a little less leads to lean. Only by finding that golden ratio can one succeed. Phosphorus is an "energy manager" in tuber development-once it is active, the metabolism within the plant is like being injected with adrenaline, and the number of tubers rises sharply (Darvishi et al., 2015). Interestingly, not only does it do the work by itself, but it also brings in hormone subordinates like ABA and IAA to work together. But the most amazing thing is the "nutritional balance" of the carbon-nitrogen ratio: raising the carbon level (just get more sun exposure), or pushing the nitrogen fertilizer down, the tubers are more active and start to expand earlier (Zheng et al., 2018). This is like playing the game of balance-when there is too much carbon, the plant focuses on growing tubers; when there is too much nitrogen, it is preoccupied with growing leaves. So the veteran farmers have to be able to read this "nutrition scale" to keep the carbon-nitrogen ratio at the most suitable position, so as to prevent the plants from growing wildly and also ensure that the tubers produce more and earlier. 5 Regulatory Pathways Governing Dormancy and Sprouting 5.1 Dormancy-related gene expression 5.1.1 Function of StSP6A in dormancy initiation This StSP6A gene is quite interesting. It acts like a "switch controller" for the growth of tubers and is related to the FT gene for plant flowering. Under normal short-day conditions, it becomes active to prepare for the formation of tubers (Park et al., 2020). But when the weather gets hot, this creature wilts-high temperatures will make it be held back by various regulatory mechanisms from working, resulting in the tubers not growing when they should and not sleeping when they should. The most infuriating thing is that even if scientists force StSP6A to express more, although the tubers can barely grow under high temperatures, the sugar transport just can't keep up, and the yield still can't increase. This is like a butler with a strange temper: when it's cool, he arranges the tubers clearly, but when it gets hot, he just gives up. No matter how you try to persuade him, it won't work. 5.1.2 Expression patterns of StABI3 The StABI3 gene is like a "sleep switch" for tubers, working in the same pants as ABA. As soon as the ABA content increases, it becomes active and turns off all buttons for cell growth and division (Wang et al., 2020). It's interesting that these two work together very well-StABI3 exerts great force when the tubers are sleeping, and when they are about to sprout, it tactfully reduces its presence. But the most amazing thing about them is their "shift system": when BAs are on night shifts, they call StABI3 to stand guard, and when it's dawn (the end of hibernation), they let it go of work, so that the tubers can wake up on time and continue to grow. This operation is even more accurate than an alarm clock, ensuring that the tubers can sleep when they should and wake up when they should.
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