53 results about "Leaf margin" patented technology

The invention provides a fragrant white peony tea and a production process thereof, which belongs to the technical field of white tea production, solves the problems that in the prior art, the appearance of white tea is deep green, pekoe is exposed without luster, endosarc has flavor but has obvious pekoe flavor, the liquor color is deep yellow, taste is pure and mild but thin, and the like, and improves external shape and endosarc of the white peony tea. The production process of the white peony tea takes tea suitable for preparing white tea as raw material, and prepares the white peony tea through the following steps: first combined withering, rocking green, secondary combined withering, screening and piling, primary curing, stalk extraction and after-curing. The white peony tea is beautiful in appearance, sage green in color and luster, obvious in endosarc pekoe flavor, apricot yellow in liquor color and full-bodied answer pleasant after taste, and naturally droops for leaf margin;and more importantly, the white peony tea can complement wateriness fragrance of white tea and have no defect of any fragrance. The white peony tea prepared by the production process has high-acuity fragrance, both pekoe flavor and obvious fleur, is very popular among consumers and vast tea lovers, and has obvious economical benefits; and the taste of the white peony tea is also with fleur.

A new and distinct lettuce variety designated ‘PX 237’, characterized by having a distinct iceberg-like texture in a non-heading variety, a thick leaf texture, lack of an obvious mid-rib, a short open growth habit, and jagged leaf margins.

The present invention discloses a preparation method of high aroma-type Keemun black tea. The method comprises the following steps: 1) picking; 2) initial withering; 3) rocking green (2 times): initial rocking green is performed by a rocking green machine with a rocking speed of 8-12 r/min for 40-80 seconds; then fresh tea leaves are put in a spreading green room with a temperature maintained at 20-25 DEG C for 2-3 hours until green grass smell is sent out, moisture of tender stems is redistributed to the leaf surfaces through veins, and leaf texture is re-hardened; then additional rocking green is carried out by the rocking green machine with the rocking speed of 15-20 r/min for 80-150 seconds; and then the fresh tea leaves are put in the spreading green room again with the temperature maintained at 20-25 DEG C for 4-6 hours until leaf margins develop red stains, and flower and fruit aromas are sent out; 4) additional withering; 5) rolling; 6) fermenting; and 7) drying. A beneficial effect of the method is that the method combines rocking green technology of Olong tea and withering technology in production processes of the Keemun black tea, thereby obtaining the high aroma-type Keemun black tea.

The invention discloses a breeding method of a heat-resistant red-skin radish and belongs to the technical field of breeding of brassicaceous vegetables. The breeding method is technologically characterized in that the first generation of hybrid of heat-resistant red-skin white radish is obtained by using a sterile line of red-skin radish as a female parent and a red high-generation inbred line of a local variety red-skin white radish in Sichuan province as a male parent. The first generation of hybrid of heat-resistant red-skin white radish has the characteristics that the plant leaves are semi-erect and are plate leaves, blades are green, leaf stalks and middle stems are red, the leaf surface has seta, the leaves are inverted oval-shaped, the leaf margins are crenate, the leaf length is about 36cm, the fleshy root is of a long cylinder shape, the skin is smooth and red, the flesh is white, the root length of the product is 20-25cm, the transverse diameter is 5-6cm, and the single weight is about 450g. The heat-resistant red-skin radish is strong in disease resistance and heat resistance, good in commodity property, excellent in quality, not easy to be hollow, short in growth period, and suitable for outdoor cropping in various regions in summer, autumn and winter.

The invention discloses a method for promoting red maple leaves to become red in autumn. The method comprises the following steps: picking all leaves together with leaf stalks from plants 45-55 days before expected holidays (the National Day and the Mid-autumn Day of China in common) in autumn; dressing 0.5 to 1 percent aqueous solution of potassium sulphate for two or three times in a period that new leaves grow after the leave stalks are picked; and regularly watering in the period that the new leaves grow after the leave stalks are picked to keep the soil around trees moist. The method solves the problem that the viewing effect is poor because the red maple leaves in summer and autumn are dark green and have withered leaf margins, green leaves of the red maple are removed and red leaves appear according to human will, and people can enjoy the beautiful sight of the red maple in the holidays.

The invention relates to a psammosilene tunicoides suspension cell culture system and an establishment method thereof. The establishment method comprises the steps of inducing callus by utilizing psammosilene tunicoides hairy roots as explants, and establishing the suspension cell culture system. On the basis of efficient induction of the hairy roots, the excellent explants is provided for establishing the system by virtue of efficient hairy root induction and culture, the psammosilene tunicoides leaves are treated at the first time by utilizing CuCl2, the leaves are immersed in rooting agrobacterium, the hairy roots can be generated at leaf veins of a leaf stalk and leaf margins in 2 to 4 days, the rooting time is shortened, the rooting can be generated in 3 to 5 days, and the inducing conversion rate is greatly increased and can reach 60 percent or more. The callus is generated by virtue of screening, dedifferentiation and induction, the suspension cell is prepared by virtue of the pretreatment of calcium oxalate, the suspension cell is cultured in an improved culture medium, the secondary metabolism and the biochemical inheritance of the cultured suspension cell are stable, the cell is unlikely to degrade, and a reliable material source and a reliable material foundation can be provided for extracting a natural product from cells.

The invention discloses a 'leaf margin' physiological disease prevention and control agent for walnuts and belongs to the technical field of nutrition regulation. The prevention and control agent comprises salicylic acid, glycine betaine, calcium nitrate, heteroauxin, fulvic acid and water. The 'leaf margin' physiological disease is caused by the fact that sodions and chloridions accumulate excessively on leaves of the walnuts and harm is caused for cells. The salicylic acid, the glycine betaine and the heteroauxin can regulate ion absorption, the calcium nitrate can prevent sodions from absorbing and can maintain the structure of a cell membrane, the fulvic acid can restrain transpiration and prevents the sodions and the chloridions from being conveyed upwards, all substances are matched, and the harm of the sodions and the chloridions for the walnuts is reduced.

A new and distinct cultivar of Camptotheca lowreyana tree named `Katie`, characterized by its freely and vigorously branching; dense and full plant habit; small leaf size; lanceolate to elliptic leaf shape; leaves from both juvenile and mature trees with entire leaf margins; lower temperature and drought tolerance; and high yield of anti-cancer camptothecin in leaves.

The present invention relates to a Lactuca sativa seed designated 41-115 RZ, which may exhibit a combination of traits including resistance against downy mildew (Bremia lactucae Regel) races B1:1 to B1:30 and Ca-I to Ca-VIII, currant lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, and corky root rot (Sphingomonas suberifaciens), as well as very thick, weakly blistering, mature non-flabellate leaves having a shallowly dentate leaf margin, and broad base leaves. The present invention also relates to a Lactuca sativa plant produced by growing the 41-115 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 41-115 RZ.

The invention provides an in-vitro rapid propagation method for plantains. The in-vitro rapid propagation method for the plantains comprises the following steps: (1) callus induction culture, namely cutting off leaf veins and leaf margins of sterilized and disinfected plantains and cutting into small blocks; inoculating the plantains to a callus induction culture medium; and carrying out regular culture to form calluses and adventitious buds; and (2) rooting culture, namely selecting the adventitious buds, with the bud lengths of not more than 2cm-3cm, obtained in the step (1); cutting off the adventitious buds from the calluses and continuing to carry out callus induction culture on the residual calluses and the adventitious buds; and inoculating the cut adventitious buds on a rooting culture medium; and regularly culturing until white roots grow to obtain aseptic plantain germchits. According to the method provided by the invention, the disinfection efficiency of explants is up to 80% and the aseptic seedling rooting rate is 100%; the aseptic plantain germchits can be rapidly propagated; a plurality of problems that the propagation capability of plantain plants is low, the propagation period is long, resources are lacked and a lot of pesticides are remained are solved; the in-vitro rapid propagation method for the plantains has very important meanings in the aspects of protecting the natural resources of the wild plantains, protecting a good ecological environment and the like.

The invention belongs to the technical field of preparation of molecular markers of vegetables and particularly relates to a molecular marker suitable for detecting the radish leaf margin lobe trait and an application of the molecular marker. A molecular marker HY-18 which is tightly interlocked with a radish leaf margin lobe gene is obtained through the steps of selecting an appropriate parent to hybridize to obtain a plant F1; seeding a seed F1, bagging the plant F1 to inbreed and backcross to obtain segregation populations F2 and BC1; constructing a radish leaf supersulcus gene pool and a total leaf lobe gene pool, designing a specific primer, carrying out PCR, recovering, cloning, sequencing and screening; and the nucleotide sequence of the molecular marker is as shown in SEQ ID NO.1 in a sequence table. The invention also discloses a preparation method of the molecular marker. The molecular marker prepared by using the preparation method can be used for analyzing radish leaf lobe populations, and the practical marker and method are provided for molecular breeding of radishes.

The present invention relates to a Lactuca sativa seed designated 79-504 RZ, which may exhibit a combination of traits including resistance against downy mildew strains Bl:1 to Bl:31, CA-I to CA-VIII (Bremia lactucae), currant-lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, and lettuce mosaic virus (LMV), as well as an extraordinary high number of substantially equally sized leaves, which leaves are medium green, slightly to moderately blistered, and have a slightly to moderately undulated apical leaf margin, which is shallowly dentate. The present invention also relates to a Lactuca sativa plant produced by growing the 79-504 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 79-504 RZ.

The invention discloses a breeding method for a rape restorer with a leaf margin divided marker character. The breeding method comprises: a plant with the leaf margin divided marker character is distantly hybridized with rapes, a stable rape inbred line with the leaf margin divided marker character is obtained and taken as a male parent, a rape restorer producing excellent is taken as a female parent, hybridization and breeding are performed to obtain a rape restorer with the leaf margin divided marker character, and the rape restorer with the leaf margin divided marker character is obtained, the leaf margin divided marker character has strong specificity and is controlled by a pair of dominant major genes, the character is stable and is not influenced by environmental conditions, the leaf margin divided marker character is relatively deep and is easy to recognize, and the leaf margin divided marker character can be found early and can be recognized as long as a seedling true leaf appears, so that all of plants without leaf margin divided markers can be conveniently recognized and removed in a restorer breeding process, other seeds are prevented from being mixed, and seeds of the restorer can be guaranteed.

The invention provides a breeding method of a rape sterile line with leaf margin holoblastically-carved marker characters. A stable rape selfing line with the leaf margin holoblastically-carved marker characters obtained after distant hybrid breeding of a plant with the leaf margin holoblastically-carved marker characters and rape serves as a male parent, a rape sterile line with excellent productivity serves as a female parent, hybrid breeding is conducted to obtain the rape sterile line with the leaf margin holoblastically-carved marker characters, and the leaf margin holoblastically-carved marker characters in the obtained rape sterile line with the leaf margin holoblastically-carved marker characters have high specificity. The leaf margin holoblastically-carved marker characters are controlled by a pair of dominant major genes, and are stable, free of influences of environmental conditions, deep, obvious, easy to identify and capable of being discovered early. Generally, the characters can be identified when seedling euphyllas appear, and in the breeding process of the sterile line, it is beneficial for identifying and pulling out all the plants not subjected to leaf margin holoblastic carving, mixing with other seeds is prevented, and the purity of the seeds of the sterile line is ensured.

The invention relates to an inducing method of psammosilene tunicoides hairy roots, and particularly relates to a method for inducing a psammosilene tunicoides explants to produce hairy roots by adopting rooting agrobacterium. The method comprises the step of treating the explants by utilizing 10 to 15 mmol/L of CuCl2 aqueous solution before the induction. According to the method, the psammosilene tunicoides leaves are treated by utilizing CuCl2, the leaves are immersed by virtue of the rooting agrobacterium, the hairy roots can be produced on leaf veins of a leaf stalk and leaf margins in 2 to 4 days, the rooting time is shortened, the rooting can be generated in 3 to 5 days, the inducing conversion rate is greatly increased, and the inducing conversion rate can reach 60 percent or more. The hairy roots grow rapidly in a hormone-free culture medium by virtue of screening.

A new and distinct highly ornamental variety of Photinia.times.fraseri plant is provided. An upright outwardly-spreading shrub is described that has a more compact growth habit than commonly is displayed by Photinia.times.fraseri. Attractive variegated foliage is displayed. Initially the foliage is reddish with pink margins that changes to green with pink margins. Finally the leaf margins mature to near white with near white and silver splashes over the green median upper surfaces of the leaves. The new variety propagates well by the use of stem cuttings and grows well in U.S.D.A. Hardiness Zone Nos. 7 and 8. The plant is well suited for growing as an ornamental specimen or in the form of a distinctive hedge. Also, the unusual colorful foliage can be used to advantage as a part of flower arrangements.

The invention relates to the botany field, in particular to a method for extracting juice in a vascular bundle of a plant leaf with stems, comprising the following steps of: circularly cutting along 0.5 to 1cm of the outer margin of the leaf by a clean and sharp blade to open the vascular bundle of the leaf margin; retaining 3 to 8cm of the stem, and removing the superfluous stems by the blade; semi-circularly cutting the position which is between 0.5 and 1cm from the end part of the stem, and removing the sieve vessel part; putting the processed plant leaf into a depression box, leaving the stem outside the depression box, pressurizing the depression box to enable juice in the sieve vessel of the leaf to flow out from a cut of the stem, and collecting the juice flowing out from the cut of the sieve vessel. The method has the advantages of wide application range, large acquisition of samples, no pollution of samples and more accurate test result.

The invention relates to the field of tissue culture of plants, and discloses a tissue culture method for Hunan artemisia umbrosa. The tissue culture method comprises the following steps: firstly, forming calluses by leaf blades: carrying out sterilizing treatment on field-picked Hunan artemisia umbrosa leaf blades, then cutting off leaf veins and leaf margins, cutting into small blocks with the area of about 5mm x 5mm, inoculating the small blocks to a callus-induced culture medium, and carrying out conventional culture to form the calluses; secondly, differentiating adventitious buds by thecalluses: cutting the calluses formed in the first step into the small blocks with the area of 5mm*5mm, inoculating the small blocks to an induced culture medium of the adventitious buds, and carryingout conventional culture until the adventitious buds are formed on the calluses; thirdly, rooting the adventitious buds: cutting off the adventitious buds with the size of about 3 to 5cm, formed in the second step, inoculating the adventitious buds into a rooting induced culture medium, and carrying out conventional culture until roots are formed, thus obtaining artemisia umbrosa tissue culture seedlings. By use of the method disclosed by the invention, a large amount of high-quality artemisia umbrosa tissue culture seedlings can be obtained within 47 days; a technological base is laid for realizing protection for wild resources of artemisia vulgaris, the demand of cultivation on the seedlings and establishing of a gene bank.

The invention relates to a processing process of Dayoucha. The Dayoucha is prepared by process steps of withering, stacking, blending and mist spraying, fixing, rolling, deblocking, re-rolling, drying, bagging, ageing, steaming, shaping, low-temperature drying, and the like. According to the process, green tea leaves are put into a withering tank, and subjected to ventilation at 15-30 DEG C for 4-6 h; and then surfaces of the green tea leaves are wetted through mist spraying in a fixation step. In the high-temperature fixation step, water mist evaporates to form steam, the penetrating power of the steam is high and the steam can penetrate epidermis cells of tea stems to allow heat to be acted on active enzymes in the tea stems, thus deactivating the enzymes to achieve a fixation objective. In addition, the steam permeates a fixation barrel so that leaf surfaces are protected from edge coking due to fast water losing caused by overhigh temperature. The enzymes in the tea leaf stems can be completely deactivated, and leaf margin cells are protected from coking and withering and yellowing, and therefore tea leaves of the Dayoucha is uniform in fixation, the fixation quality is increased and quality is better.

The invention relates to a multi-functional telescopic maintaining platform for a leaf margin. The multi-functional telescopic maintaining platform comprises a tower body; an upper suspension hoistingpoint is mounted at the upper part of one side surface of the tower body (according to different structures, the suspension hoisting point can be mounted in an electric generator cabin); a winding device is mounted at the ground position at the lower part of the other side surface of the tower body (a windlass is connected with the tower body by adopting a hoop way); a climbing bracket is mountedon the side surface of the tower body positioned on the same side of the suspension hoisting point, and moves along a fa ade of the tower body; three suspension points are arranged on a basic boom ofthe climbing bracket, and are correspondingly connected with the upper suspension point through steel wire ropes; and a telescopic boom moving along the direction perpendicular to the tower body is arranged in the climbing bracket. The multi-functional telescopic maintaining platform can be used for maintaining and developing the leaf margin of a wind driven generator blade, the winding device falls onto the ground, and the climbing bracket is driven to move up and down along a fa ade of a wind tower through the steel wire ropes. When the multi-functional telescopic maintaining platform is inthe non-operation state, the device is dismounted and stored in a designated warehouse, and is conveniently used and dismounted.

The invention relates to a method for establishing identity card (ID) number of pear variety. In the method, one digit number represents the scientific name of the pear; two English-letter country domain represents the producing country of the pear; two-digit number represents the producing province of the pear; one digit number represents the leaf margin sawtooth shape of the pear; two-digit number represents the fruit shape of the pear; one digit number represents the fruit color of the pear; one digit number represents the sepal state of the pear; one digit number represents the germplasm ploidy of the pear; a gene code represents the S gene data; two digit number represents molecular marker data; and the digit and the letter coded data string determines the ID number of the pear. By the method, the ID number of the pear variety is coded according to the variety, the original producing area, properties and gene data. The method has the characteristics of clear and bright markers and convenience of identification and is applicable to determining ID number of the pear and other fruits.