"Grains, no harvest?!"

Looking at Pei Pei Liangyue, Ai Jin'er and the others who were standing in a circle in front of him, Gan Guyu looked incredible: "It's not the first day you planted crops, just plant two grasses and still grow seeds." What's going on?"

"We don't know what's going on, we're all planting according to the method in your lesson plan. ”

Pei Pei was also depressed: "The sunflowers next to me have harvested a lot, but the peanuts only bloom and do not bear fruit, and they have no fruit when they are spawned into a bunch of dead grass......

"Wait a minute!" Gan Guyu heard a little meaning, "Only blooming and not bearing fruit?"

"yes!" everyone nodded in unison.

Ai Jin'er looked aggrieved: "I also paid special attention to the pollination method of peanuts, and your lesson plan said self-pollination in black and white, so I asked everyone not to adopt artificial pollination." ”

Gangu Yu's expression instantly became strange, and he hurriedly took out his lesson plan, flipped to the chapter on teaching peanut planting, and read it carefully. Then, his expression became more embarrassed than ever.

Seeing his self-posing expression, Pei Pei also became cautious: "That, it's okay to make a mistake once in a while, just modify it." ”

Liang Yue also hurriedly said: "I'll take everyone to plant a new crop later, can you guide me next to you?"

Only Ai Jin'er pouted: "Teacher, teaching must be rigorous." That's it, I won't hold you accountable for your first offense, hurry up and check your lesson plan again to see if there are any omissions!"

"Well, you may be mistaken. "There are no mistakes in the lesson plan, but I took it for granted when I wrote it, and only emphasized the planting technique. I was going to give an introduction to peanuts in class. So there is an omission in the lesson plan. ”

When everyone heard this, they looked at each other, then looked at Gangu Yu and asked in unison, "So what?"

Gan Guyu smiled embarrassedly: "You shouldn't know that peanut fruits grow in the ground, right?"

Everyone shook their heads in unison, and then their eyes widened.

"Shenma?!"――

"Anyway, I said I should cut a few plants out first. Let's find out for ourselves?"

Looking at the withered peanut plants in the field, Ai Jin'er said dissatisfiedly: "I have to say that I have to keep the field as it is, and wait for the teacher to come back to explore the reason." If I had listened earlier, this problem would have been solved, and we wouldn't have had to argue for so many days. ”

"What do you mean by that?" Liang Yue immediately shouted back, "Pei Pei made such a decision is the safest, now that Xiao Guyu is back, the problem is solved, isn't it also in line with the original expectations? It's boring!"

"Alright. It is good to have the spirit of self-discovery of true knowledge. ”

Gangu Yu glanced at Peipei, who bowed his head and was silent, and interrupted the quarrel between the two sides: "But this time, it's mainly my negligence." It seems that during this time, everyone is still a little superstitious about me! Although we do not advocate superstitious authority in scientific research, I am actually quite happy to be worshiped by others. Later, of course, in the preparation of lesson plans. I'm going to be a little more rigorous and I won't live up to everyone's trust in me anymore. ”

Ai Jin'er heard this. glanced at Pei Pei and Liang Yue, pulled the corners of his mouth and didn't speak again. Pei Pei glanced up at Gan Guyu, and then lowered his head again.

Gangu Yu pretended not to see anything, and said with a smile: "Today should be regarded as a make-up class." This peanut is more peculiar, although it is also a leguminous plant, but it blooms on the ground. Underground, unlike soybeans, pods grow directly on the branches. The reason for this is that after pollination, the ovary of the peanut develops into a fruit needle that grows in the ground and then penetrates into the soil layer one to three inches deep. Then it lies horizontally and develops into pods. ”

"I see. Ai Jin'er nodded suddenly, "There are still such plants!"

"This habit of peanuts is relatively rare in the entire plant kingdom. Gan Guyu nodded, and looked at Pei Pei again, "That girl, do you know why peanut fruit needles have to burrow into the soil to grow into pods?"

"Huh?" Pei Pei was obviously absent-minded, and only then did he wake up when he heard Gan Guyu take the initiative to talk, first looking dazed, and then becoming flustered.

Ai Jin'er smiled slightly and replied, "Is it because peanut pods need to absorb nutrients from the soil before they can mature?"

Seeing that his actions were completely counterproductive, Gangu Yu couldn't help but curse himself, and hurriedly said, "Actually, this is just one of the factors. There was once an experiment in which peanut fruit needles were put into an empty bottle that was transparent to prevent them from burrowing into the soil. Even if there is enough nutrient solution in the bottle, the fruit needles will not grow into pods.

But if the bottle is replaced with a shading one, the needles can expand the fruit, indicating that among the many factors that affect the result, darkness is the most important. If you look closely, you will see that the needles that do not enter the soil only elongate, but do not form pods. The enlarged ovary, even the developing young pods, will stop growing if they are exposed to the ground, and can only continue to develop after covering the soil. ”

Of course, peanut needles and pods also function like roots, absorbing water and nutrients from the soil. The calcium required by the pods is mainly taken up from the soil by the needles and pods. If there is a lack of calcium in the soil layer of the pod, the development of the pod will be stunted and empty fruit will easily appear.

But it is clear that these words are not suitable for this time.

Gangu Yu raised his hand towards the field. The ridge then turned outward, and a handful of peanuts were pushed out of the soil. He took a closer look: "Heh! Actually, there is still a lot of harvest! Everyone take a hand and put away the peanuts -- oh, Sister Liangyue, come with me, there is something on the planting base that wants to trouble you." ”

"Oh. Liang Yue answered, and then left with Gangu Yu first. But before leaving, she didn't forget to glare at Ai Jin'er.

"During the time I left, Pei Pei and Ai Jin'er fell out?" Gan Guyu pulled Liang Yue to a place where no one was, and then finally asked, "I remember that the relationship between the two of them was okay before, right?"

At the mention of this, Liang Yue was angry: "That Ai Jin'er, since she became your true biography, she has been showing off her power all day long, and she doesn't take us seriously at all." Whatever we do, she's going to question it. Pei Pei just wanted to wait for you to come back and take care of the peanut field, but she was ridiculed for a while. What do you say, you don't have scientific research literacy? It's really infuriating to me. ”

Although Liangyue's wording was obviously biased, Gan Guyu still analyzed the general story of the matter from her words, thought about it and said, "This Ai Jin'er is just too serious. Well, I will comfort Pei Pei in the future, she is not wrong, and she should not be harsh. ”

"I'll just say that's it!" Liang Yue immediately echoed, "Xiao Guyu, you too, since you got engaged to Miss Yimo, you have been running around, are you a little out of the cold?" That child has not been confident enough, and people are more sensitive, you have to pay attention to it!"

Gan Guyu nodded hurriedly: "I know." Okay, please help me pass a message to her, just say I'm waiting for her in the dormitory. ”

Liang Yue nodded with satisfaction: "Okay, then I'll go." ”

Gangu Yu smiled gratefully at her, and then turned around and left. (To be continued.) )

PS: Thank you Count Dracula for the monthly pass, and continue to ask for all kinds of support~