Morphological characteristics of annual lianas. Melon pulp is crisp, sweet and juicy, rich in mineral salts and vitamins, and is the main fruit in summer. Watermelon can clear away heat and relieve summer-heat, and can be used for adjuvant treatment of nephritis, diabetes and cystitis. Peel can be preserved, preserved, jam and feed. The oil content of seeds is as high as 50%, which can be used to extract oil, fry food or make pastry ingredients.
So we should eat more watermelons, which is good for our health.
2. Write 5 diaries and observe the growth process of watermelon. The rain cleared up.
A few days ago, I planted a watermelon seed in a flowerpot. Today, it rained lightly. When I got home, I couldn't wait to go to the flowerpot and thought, I haven't germinated for so long. Should I germinate today? As soon as I saw it, a watermelon seedling about four centimeters long grew in the place where I planted it, with five green and tender leaves. Look carefully again, there are some curly silk in the middle of the leaves, like my mother's freshly permed curly hair.
sunny day
I haven't seen my little melon seedlings for a long time. Go there today, yeah! Melon seedlings are almost palm-long, with small flowers and some bees flying on them! It's sesame blossom-higher and higher!
sunny day
"Great discovery! Mom, come and see! " It turns out that my watermelon seedling has produced a small watermelon. Small watermelon is covered with hair and feels very comfortable. I want to be a lovely "hairy doll".
The north wind blows on cloudy days.
In the morning, when I looked at the flowerpot, I was shocked. A small watermelon the size of a palm is about to wither. A cold wind blew, and I seemed to understand something.
My mother came over and patted me on the shoulder and said, "It's winter, not the season to grow melons. If you want to grow good melons, you must understand their growth laws. "
It seems that it is not enough to have enthusiasm to do a good job, but also to know how to do it well.
3. Growing Watermelon Diary 300 words Summer is here. The burning sun, like a big round fireball, scorched the earth. In addition to eating ice cream to relieve the heat, watermelon is indispensable in summer.
Watermelon is round and fat, like a flower ball. There is a coiled vine on the top of the watermelon, like a telephone line. I also want to shake the pig's tail on the pig. It was fun.
Watermelon skin consists of dark green winding stripes and green background. Watermelon looks like a green coat and feels slippery. When you hit a bullet with your hand, it will make a "thump" sound, just like knocking at the door.
After the watermelon is cut, the red flesh and black seeds will be exposed, like pearls embedded in the red flesh, and like a group of black fish swimming happily in the red lake. Before watermelon is eaten, it will smell a faint fragrance, which makes my mouth water "three thousands of feet".
Take a bite, and your lips and tongue will be stained with red watermelon juice, which is sweet and makes people love it more and more. Ah! Watermelon, you are my favorite.
4. Observe the diary of watermelon seedlings. Everyone has eaten watermelon! Not long ago, I buried the seeds of watermelon in a flowerpot. Sure enough, a few days later, there was more green in the flowerpot!
Dad bought a big watermelon that day, and everyone ate it after dinner. I looked at the watermelon seeds in the ashtray, and an idea flashed through my mind. Suddenly, I had a brainwave. "What does it feel like to plant watermelon seeds in the soil?" To answer this question, I planted the seeds in the soil of the flowerpot. Unconsciously, after more than ten days, Miao Miao poked her head out. Its green stems and leaves make it look more arrogant and delicate in the sun. It is like a newborn baby who is curious about the world.
After a few days, it grew a little taller. This time I became good friends with it and talked to it every hour. I sometimes ask it, "Would you like to be good friends with me?" At this time, as soon as the wind blows through its stems and leaves, it swings in the sun as if nodding. Every time I communicate with it, I will show a knowing smile. It is like a green elf, which brings me happiness!
Finally, I found the appearance of seedlings, and I also knew that it was not easy for farmers to grow watermelons. It will take you a few days to grow a small bud. It's not easy to grow a watermelon that big, is it?
5. Observe the watermelon composition 100 words 1. I like watermelon.
I like to eat watermelon, because watermelon is delicious.
Big and round watermelon, like a big green ball. Green watermelon skin, full of red pulp. When I eat it, it is sweet and fragrant, and the red and sweet juice comes out. People can't help but have a smell when they see it.
Watermelon is people's favorite fruit in summer, which can quench thirst and relieve summer heat. If you can drink a glass of cold watermelon juice, it will be a great enjoyment in hot summer.
I like watermelon best.
2. My favorite fruit-watermelon
Summer is coming, among all kinds of fruits, my favorite fruit is watermelon!
The big watermelon is round and colorful, which makes people feel cool and thirst-quenching. Watermelon is round, big and heavy. After washing and cutting, look at the pulp of watermelon, red and sandy. It smells fragrant and tastes cool and sweet.
Watermelon contains a variety of amino acids and vitamins. Regular consumption has the functions of clearing away heat and toxic materials, beauty beauty, diuresis, and supplementing human body moisture.
Ah! Watermelon, my favorite fruit!
3.watermelon
Watermelon is one of my favorite fruits.
The chubby watermelon is wearing a light green coat with dark green stripes embedded in it. I can't wait to buy a big round watermelon in the street. When I got home, I asked my mother to help me cut it, exposing red pulp and black seeds, like a small house. I took a big bite and a little bit of coolness came to my mind. After listening to my introduction, you must want to eat it, too
4. My favorite fruit-watermelon
Yesterday, the teacher asked us to write about our favorite fruit. So I decided to write watermelon. I like watermelon best!
Watermelon is big and drum, making a banging sound. Its color is green with black stripes and it is round like a big basketball. The meat in the watermelon is red and yellow, which is very sweet. You can squeeze watermelon juice and eat it, or you can freeze it in the refrigerator. This can relieve summer heat and quench thirst. Watermelon seeds can also be fried and cracked, and even treated. Very useful! I like big watermelons!
6. Write a diary about the growth process of watermelon. The growth and development process of watermelon can be divided into germination stage, seedling stage, jointing stage and fruiting stage. Like other crops, it has two stages: vegetative growth and reproductive growth.
1, germination period? Seeds germinate until cotyledons are flattened, and 2-3 young leaves are formed at seedling tips. At 25-30℃, it takes about 10 days.
At this stage, depending on the nutrients stored in seeds, the dry weight of aboveground parts increased little, and the root system grew faster. 2. Seedling stage? From the first true leaf to the "clumping stage" of 5-6 leaves
At the temperature of 20-25℃, it usually takes about 20 days, and at the temperature of 15-20℃, it takes about 30 days, which can be divided into two-leaf stage and clumping stage. In the two-leaf stage, the growth of hypocotyls and cotyledons gradually stopped, the main stem became shorter, and the seedling tip had 4-5 young leaves and 2-3 Yuan Ye basal parts, so the plant grew slowly at this stage. The clumping stage refers to the stage when 2 leaves spread to 5-6 leaves, and the seedling tip has 8-9 tender leaves and 2-3 Yuan Ye basal parts. This stage is the growth of leaves and stems.
The dry weight, fresh weight and leaf area of shoot increased slightly at seedling stage, but the growth rate increased exponentially. The root system grew faster.
The lateral branches and flower buds are well differentiated. Lay a good foundation for the growth, flowering and fruiting of stems and leaves in the future.
3. Stretching period? The seedlings are clustered, and the female flowers bloom at the fruit-setting festival. At the temperature of 20-25℃, about 20-25 days.
With the elongation of internodes, the dry weight of plants increased rapidly. The vine-stretching period is the main period of stem and leaf growth, with the aim of establishing a strong vegetative body.
At this stage, the growth center is the growth point, and there is no nutrient transformation between the main vine and the lateral vine. 4. Result period? The female flowers on the fruit-setting festival bloom until the fruit is ripe and the whole plot is harvested.
It takes about 4-5 days for the second and third female flowers of the main vine to bloom at 26℃ until they bear fruit. This is the turning point from vegetative growth to reproductive growth. The growth amount and speed of stems and leaves are still relatively strong, and the growth of fruits has just begun. With the expansion of fruit, the growth of stem and leaf gradually weakens, and fruit is the growth center of the whole plant.
The fruit growth period is generally 30-40 days, and it will take longer if the fruit is picked for the second time. From seedling to flowering and fruiting, it is a vegetative growth stage, mainly with long roots, vines and leaves, which lays a good foundation for fruiting.
It is characterized by slow initial growth, vigorous growth after vine pulling, strong branching and large growth. At the same time, it begins to blossom and set fruit, from flowering to fruit maturity to reproductive growth, with melons and fruits expanding mainly. Its characteristic is that the melon vines can still grow at the initial stage of fruiting, and then the watermelon fruit grows gradually, and the melon vines stop growing, and all nutrients are used for fruit expansion.
However, if there is too much fertilizer and water before the vegetative growth period, it will cause the vines to grow white and difficult to drop flowers, fruits and melons; After the watermelon bears fruit, even if it is full of fat and water, it will not grow in vain, and it can also promote the watermelon to grow bigger and have better quality. Therefore, it is very important to coordinate the contradiction between vegetative growth and reproductive growth and adjust the relationship between growth and fruit through cultivation measures to win high quality and high yield of watermelon.