Seeing Shi Bingxue's expression like this, Li Xiang thought to himself that if he hadn't happened to meet Lingzhu in the store that day, he wouldn't have said anything more, and he wouldn't have met Shi Bingxue. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 As soon as he thought of this, Li Xiang took out the printed rice planting manual from his arms and said, "Miss Shi, this is the planting method of rice seeds. ”

Shi Bingxue was also taken aback when he saw that there were dozens of pages, Li Xiang explained: "Actually, what is said here are some principles, as for planting, it is not too difficult, there are three varieties of seeds this time, so after crossing, what is obtained is the real seed, and the rice obtained from this batch of new seeds can no longer be used for planting." ”

Shi Bingqi said: "Hybrid rice? And why can't the resulting seeds be replanted? In this case, can the seeds only be planted for a year and then useless? ”

Li Xiang saw that she asked several reasons in a row, and said with a smile: "Hybrid rice is produced by crossing different rice varieties with each other, but rice is a self-pollinating crop, which is not conducive to the preparation of hybrid seeds." To carry out the crossbreeding of two different rice varieties, the stamens of one variety must be artificially emasculated or killed, and then the pollen of the stamens of the other variety should be transferred to the emasculated variety, so that there will be no false hybrid rice with self-pollination of the emasculated variety. However, if the emasculation pollination is carried out on tens of thousands of rice flowers by manual methods, the workload is extremely large, and it is actually impossible to solve the problem of producing a large number of seeds. ”

At this point, Li Xiang explained what stamens, hybridization, and pollination are, Shi Bingxue saw that he kept saying words such as "hybridization, artificial insemination", and was a little shy for a while, and his face couldn't help but blush, but fortunately, Li Xiang didn't know how to explain it, and he was looking down and thinking about the rhetoric, but he didn't pay attention for a while.

Li Xiang said: "Since the artificial method is not good, so the research and cultivation of a kind of rice as the female parent, this kind of female parent has a special personality, its stamens are thin and degenerate, the anthers are shriveled and deformed, and they cannot be fertilized and seed by their own pollen. ”

"Of course, in order not to cut off offspring from this female parent, it is necessary to find two mates for it, the characteristics of these two spouses are different, the first mate looks very much like the female parent, but has sound pollen and a stigma, and after giving it pollen to the female parent, it produces a daughter, who looks exactly like the mother, and is also a female parent with thin and degraded stamens, shriveled and deformed anthers, and no fertility."

"The other spouse is very different in appearance from the mother, and is generally taller than the mother, and has a sound pollen and a stigma, and when the pollen is given to the mother, the other spouse produces a son, who is stronger than both the father and the mother. This is the hybrid rice we need, a female parent and its two mates, according to their different characteristics, people have three names: the female parent is called the sterile line, two mates, one is called the maintenance line, the other is called the recovery line, referred to as the three lines. With the matching of these three lines, we know how to prepare hybrid rice in production. ”

"In production, it is necessary to plant a breeding field and a seed field, and the breeding field is planted with sterile lines and maintenance lines, when they are all flowering, the pollen of the maintenance line is transmitted to the sterile line with the help of wind, and the sterile line obtains normal pollen and bears fruit, and the offspring produced are still sterile lines, so as to achieve the purpose of reproducing sterile lines. Therefore, the seeds of the sterile line can be reproduced, and a part of the seeds can be kept for the next year, and the other part will be produced with the restorer line, and when the sterile line and the restorer line of the field are flowered, the pollen of the restorer line will be transmitted to the sterile line, and the offspring produced by the sterile line will provide hybrid rice seeds for field planting. Since the stamens of the maintainer line and the restorer line themselves are normal and self-pollinated, the seeds produced by each are still the offspring of the maintainer line and the restorer line. ”

Shi Bingxue heard Li Xiang say so complicated, and felt that there was too much content for a while, and he didn't understand it very well, but Li Xiang was not too troublesome, and talked about it again, and drew a schematic diagram.

When Shi Bingxue saw this picture, he suddenly smiled and said: "I understand, it is three kinds of rice seeds, which are planted in four plots, one piece of land is used to produce seeds that can be planted, and the other three pieces are used to produce seeds that can produce seeds." Speaking of this, she suddenly felt that her words were a little awkward, and she couldn't help but blush again.

Li Xiang smiled: "Yes, that's the truth, that is to say, when these three types of seeds reach the harvest season, they will get four kinds of rice seeds, and the first three are of course the same as your existing ones, but there is another new variety, which is hybrid rice seeds." As for the specific planting method, it is clearly written in the booklet. ”

Shi Bingxue praised: "I didn't expect that there is so much knowledge in rice planting, and Li Gongzi is really a talented learner." ”

Li Xiang's face turned red, and he hurriedly said: "Where, it is up to Miss Shi to take care of this batch of seeds." ”

It's still too late to soak seeds, and if all goes well, we can plant them again this year. When Li Xiang heard her say this, he was also very relieved, thinking that by the time autumn came, there should be a large number of seeds.

Shi Bingxue happily took the seeds and the manual back, who knew that the little girl Yuru would not do it anymore, she also wanted the seeds and the manual, ready to compare with Miss Shi, who planted it well!

In fact, the little girl felt that Miss Shi seemed to be interested in Brother Li, and she was jealous in her heart. Although Li Xiang understood, he couldn't help but agree to her.

Two days later, Li Xiang just walked into the back garden, but saw that the back garden had been leveled, and Yuru had already gotten up and was busy checking in the field. Now this back garden has long been protected by Yuru.

Li Xiang smiled: "Sister Yuru, your actions are really fast." ”

Yuru grinned and said, "Brother Li, I can't lose to Miss Shi, I must take good care of these seeds and wait for good rice to be planted next year." ”

Li Xiang said with a smile: "This is nature, jade is like farming, the first in the world." ”

The two talked and laughed for a while, and Li Xiang turned around and left. As soon as he returned to the front yard, he heard Zhou Wu talking to someone in the courtyard, only to hear a crisp voice say, "Li Gongzi is early." ”

Li Xiang looked up and saw that the person who spoke was Lingzhu. Li Xiang felt strange in his heart, thinking that Lingzhu didn't know what was going on when he came early. Lingzhu said: "The seeds that Li Gongzi sent last time, my young lady regarded them as treasures, and specially left a good piece of land to plant them, and now we can't stand next to them for a while, for fear of being trampled on." ”

Li Xiang smiled: "Actually, my situation here is similar. By the way, Miss Lingzhu came over early in the morning, but something happened? ”

Lingzhu grinned and said, "In order to express her gratitude, my young lady specially asked me to come and send a gift. As he spoke, he took out a brocade box from his bosom.

Li Xiang took it and asked, "Does the girl know what kind of gift it is?" ”

Lingzhu smiled mysteriously and said: "I don't know about this, and my young lady didn't tell me, but told me to hand it over to Childe, Childe might as well open it and take a look at it yourself." By the way, I still have something to go first. (To be continued.) )