Determination of Different Leaf Positions of Apricot with Photosynthesis Instrument

The effect of de-fruiting on photosynthetic rate of leaves at different positions was studied by photosynthesis instrument. It was found that the effect of de-fruiting treatment on the leaves near the leaves was greater than that of the leaf leaves far away from the fruit, and after fruit removal, from the foundation to the new The photosynthetic rates of different leaves in the tip of the shoot are no longer a parabola change, but the trend of gradual increase indicates that the existence of the library has a great influence on photosynthesis of leaves at different positions.

The photosynthetic apparatus used to measure the change of photosynthetic rate of single leaves of fruit trees showed a "low-high-low" pattern. When the leaves were first developed, Pn was very low. With the growth of leaves, Pn increased. When the leaves were fully mature, the photosynthetic rate was the highest. After maintaining for a period of time, Pn gradually decreased with the aging of the leaves. At different parts of the shoot, the environmental conditions and physiological basis for leaf formation were different, and photosynthetic intensity also varied.

Under normal circumstances, the photosynthetic rate of the leaves of different shoots from the base to the top showed a parabolic change. The middle leaves were the highest and the leaves at both ends were gradually lower. At the end of the first rapid growth of the medium-to-long shoot, the photosynthetic rate of the 7th to 14th leaves of the middle part was the highest. The analysis of the photosynthesis instrument indicated that it was at the peak of physiological maturity, and the leaf photosynthetic rate below the 7th leaf was extended with the leaf opening time. The decline is the result of leaf aging.

Using the photosynthesis instrument to determine the different leaf ages, leaf positions, and sound field conditions, the results are not the same for all kinds of leaves. This also shows that the factors affecting photosynthesis of plants are diverse, in which the influence of light is the main Factors, illumination is one of the important factors of apricot productivity, different species and species, light compensation point and saturation point, light-pn curve are very different, even the same species, at different ages, different seasonal photosynthesis instrument The results of the measurements are different.

Shanghai Uwin Automotive Product Co., Ltd. Is a new, modern, dynamic presence in the market of 4x4 & car accessories in china. Our company was created in order to become a pioneer in the market. Our people have many years' experience in this field, willing to supply the best service to u. Our product range for 4x4 including: Synthetic Winch Rope , Jeep Wrangler Bumper, Jeep side bar, Winch Prolink Flatlink, Tree Saver Strap, roof bar, spoiler, spare tire cover, rear ladder, tonneau cover, bed liner for suv, mpv, jeep and pick up. Ensure quality of our products, we adopted digitally controlled machines such as tube-bending, cutting and laser cutting. For car accessories including: Car seat cover , Car floor Mats , Car Sunshade Cover, Car Covers, Car Trunk Covers, hand brake cover, mirror, bumper guard, door guard, sunshade, brake light, led, wheel cover, seat cover, cushion, Steering Wheel Cover etc more than 10000 kinds for ur choice. We are looking forward to cooperate with customers all over the world, and we hope we can become not only ur biz partner in china. But also your close friends.

Car Headrest Pillow

Car Headrest Pillow, Car Headrest Cushion, Car Seat Neck Pillow, Auto Car Seat Neck Pillow

Shanghai Uwin Automotive Product Co.,Ltd , http://www.uwinoffroad.com