"Are you Mr. Qin? The junior Zheng Qilin came to visit. ”

Zheng Qilin replied with a smile.

"Oh, you're looking for me to buy out my grafting technology, don't sell it, let's go. ”

The old man waved his hand directly.

"Grandpa Qin, I'm Huanhuan, you don't recognize me? This is my boyfriend Qi Lin, I just came back from vacation, and I happened to pass by you, so I brought my boyfriend in to see you. ”

Zhang Huan opened his mouth and said.

"Huanhuan?"

The old man was stunned for a moment, frowned, lost his eyes, and looked at Zhang Huan.

"Are you the broken woman of the Runsheng family? Oops, you've grown so big. ”

The old man sighed.

"Hmm. ”

Zhang Huan nodded hurriedly.

"Is this your boyfriend? Yes, the broken woman has a good eye. ”

The old man's gaze returned to Zheng Qilin, looked at it twice, and then said.

When Zheng Qilin heard it, there was a play. It seems that the relationship between this old man and Zhang Huan's family is not bad, and he doesn't know Zhang Huan, but also calls her a broken woman.

"Thank you, grandpa. ”

Zhang Huan smiled.

"Then you sit down first, and let you taste the new Red Fuji 7 that Grandpa just bred this year. ”

The old man said.

"Well, I know that grandpa you have new achievements. ”

Zhang Huan said.

The old man turned and went into a house on the other side, and soon came out with a basket containing four or five bowls of red apples.

"Taste, how does it taste?"

The old man handed one to Zheng Qilin and Zhang Huan respectively.

"Wow, that's big!"

Zhang Huan's eyes widened.

Zheng Qilin's eyes also widened.

You know, it's still summer, most of the apples are not ripe, and the ripe apples are called summer apples, which are generally small in size and not very red in color.

But the apples handed to them by the old man Zhang are bigger than the normal ripe autumn apples, and the most important thing is that this kind of apple is bright in color, and the cortex looks very thin, like a layer of paper, there is no doubt that even if you don't have to taste it, you know that this apple is definitely very crisp, and there is a lot of water, since the old man dares to take it out to "show off", the taste must be very sweet.

"I picked it from the tree yesterday, washed it, and ate it directly. ”

The old man said with a smile.

"Okay. ”

Zheng Qilin and Zhang Huan began to eat apples, and sure enough, when they took a bite, a stream of sweet juice from the depths of their hearts and spleens "poured in" into their mouths.

Yes, the word "influx" is used here.

You can see how abundant the juice of this apple is.

There is no doubt that this is the sweetest and best apple that Zheng Qilin has ever eaten when he is so big.

"How?"

The old man looked at Zheng Qilin and Zhang Huan.

"It's delicious!"

"Sweet and crunchy!"

Zheng Qilin and Zhang Huan nodded repeatedly.

"Hehe, it's delicious. ”

The old man had a satisfied expression on his face.

"Grandpa, my boyfriend graduated from the agricultural major, how can you give him guidance on your grafting skills?"

Zhang Huan blinked, and there was a sly glint in his eyes.

"Well, okay! I'll tell you two juniors about this grafting technique. ”

The old man pulled a stool, sat opposite Zheng Qilin and Zhang Huan, and began to talk about his unique grafting technique.

"Let me start by telling you what grafting is. The essence of grafting is a kind of vegetative reproduction in asexual reproduction. When grafting, the scion should be tightly bound to the cambium layer of the rootstock to ensure the survival of the scion. The branch or bud that is grafted up is called scion; The grafted plant body is called a rootstock or table wood. Seedlings with 2 to 4 buds are generally selected for scion, which become the upper or top of the plant body after grafting, and rootstock becomes the root part of the plant body after grafting. During grafting, the cambium layers of the two wounded surfaces are brought close together and tied together, and as a result, due to cell proliferation, they heal each other and become a whole connected by vascular tissue. ”

The old man explained very professionally, and it was clear that he was very knowledgeable in this area.

"Grandpa Qin, how can plant species be grafted between them?"

Zheng Qilin asked curiously.

"Can we graft apples on top of grapes?"

Zhang Huan is whimsical.

"Haha, well, of course not. The most important factor for the survival of grafting is the affinity between the scion and the rootstock, followed by the grafting technology and post-grafting management. What is affinity? To use us as an example, it is blood relationship. On plants is the ability of scion and rootstock to be identical or similar to each other in terms of internal tissue structure, physiology and genetics, so that they can be combined with each other. High affinity and high survival rate of grafting. On the contrary, the survival rate is low. In general, the closer the plant kinship, the stronger the affinity. For example, apples are connected to sand fruits, pears are connected to Du pears, autumn pears, persimmons are connected to black dates, walnuts are connected to walnuts, etc. However, grapes and apples, which are different species, are basically impossible to survive. ”

Old man Qin explained.

"Oh yes. ”

Zheng Qilin and Zhang Huan nodded at the same time.

"Will all grafted species be improved?"

Zheng Qilin became interested and asked.

This is not necessarily, but in the process of production practice, grafting to improve the economic value, there are also many examples, such as ordinary metasequoia through grafting, after cultivating into gold-leaved metasequoia, the economic value is increased by more than 20 times, and then such as the ordinary large-leaved privet tree, through the means of grafting, after cultivating into a color-leaved tree, its economic value is as high as nearly 100 times. It can be seen that grafting is of great significance to the improvement of varieties and the improvement of economic value. In addition, grafting is of great significance for the propagation of some fruit trees that do not produce seeds, such as persimmon citrus. Grafting can not only maintain the excellent traits of scion varieties, but also make use of the favorable characteristics of rootstock to achieve early fruiting, enhance cold resistance, drought resistance, disease and insect pest resistance, and also economically use propagation materials and increase the number of seedlings! It is also used for melon and vegetable seedlings. Grafting is divided into two categories: grafting and budding, the former is suitable for spring and autumn, especially in spring, and the latter is suitable for summer......"

The old man spoke like a learned professor at the moment, telling his students about the lessons. ”

"Oh, so what do you have to say?"

Zheng Qilin asked calmly.

This question is the key to grafting, and it is also his real purpose in finding this old man. As for what I just described, it is just some ordinary grafting techniques, which can be easily found in relevant books.

"Haha, I know you two bunnies want to trick me. I can't tell you about this anymore, this is the old man's life's work, and the old man has his own plans. ”

Old Man Qin took a deep breath, exhaled slowly, and looked sideways at the eastern sky, thoughtful.