Red Beauty Citrus is a tangerine-orange hybrid variety, with parents Nanxiang (mother) and Amakusa (father), which was selected and bred by Ehime Prefectural Fruit Tree Experimental Farm of Japan for 12 years, and has been realized to be cultivated in China's Zhejiang, Sichuan, Chongqing, Guangdong, and Hunan. Red Beauty Citrus pulp yellow-orange, soft and juicy, taste like jelly, juicy and sweet, excellent quality, in late November began to gradually ripen, the fruit tree's fruit drop rate is relatively high, physiological natural fruit drop weight is also relatively light. In the process of cultivation, should do a good job of fertilizer, irrigation, anti-freezing, pest control and other work.

A variety of sources

Red Beauty Citrus is a member of the Brassicaceae family, Citrus sinensis, a hybrid variety of orange and orange, the mother of Nanxiang, the father of the day grass, by the Japanese Ehime County Fruit Tree Experimental Farm over a period of 12 years, the varieties registered as ? Ehime Fruit Trial No. 28?

Tree Characteristics

The Red Beauty is a slightly strong tree, and is susceptible to long shoots during the seedling stage and the early stage of the high grafting period, and behaves in a more upright way, and then gradually tends to be more open after the fruiting period, and hardly occurs. The first time I saw this, it was a very good thing that I was able to see it. Sagging branches are common in pedigree varieties. Long branch spurs occur between the nodes of the elongated branches, and as the tree grows older, it gradually tends to reduce, and the branch spurs on the spring tips will disappear soon after the beginning of fruiting. The spring leaves are fusiform and slightly smaller, and the winged leaves are wedge-shaped and narrow. Summer and fall leaves are quite large. Problems with alternate year fruiting are virtually non-existent and fruit consistency is well represented.

III. FLOWER CHARACTERISTICS

1. Red Beauty's floral apparatus is lighter in weight than that of its parents, Nanxiang and Amakusa. Petal length and width are smaller than Nanxiang, close to Tiancao, and fusiform in shape. The average number of filaments is 19, which is between Nan Xiang and Tian Cao. The filaments are separated at the base as in the parent Nam Heung, but the filaments of the parent Amakusa are partially united. Pollen formation is moderate, more than that of Nan Xiang and less than that of Tian Cao. Ovary globose, style bowed.

2. The first flowering of Red Beauty fruit trees is usually in mid-March, and the full flowering is in mid- to early-April.

Four, fruit characteristics

1, large fruit type, the average weight of a single fruit of about 200g, greater than the parents of the Nanxiang and Tiancao. Fruit shape oblate, similar to the grass, fruit shape index of 119 or so. Fruit surface smooth, pericarp thick orange, color similar to the grass. The oil cell is large and convex. It is difficult to peel the skin because the wall of the vesicle is very thin and closely connected with the white skin layer. The equatorial part of the fruit to the pedicel is nearly conical, and the longitudinal section of the fruit is mostly short ovate. The fruit is tight, without floating skin. Unisexual fruiting ability is strong, and usually without a nucleus.

2, yellow-orange flesh, soft and juicy, sac valve wall is thin, the tongue is almost imperceptible, the taste is like jelly, juicy and sweet, excellent quality, soluble solids content between 13.2-15.6%, the content of 9.33% of converted sugar, reducing sugar content of 5.16%, titratable acid content of 0.93%, Vitamin C content of 315 mg / liter, the edible rate of 86.83%, juice yield 56.16%.

3, red beauty citrus generally in late April for the first physiological natural fruit drop, in mid to late May will be the second physiological natural fruit drop. June to September each year is the fruit expansion period of the red beauty fruit trees, in late November began to gradually mature, the fruit tree fruit drop rate is relatively high, physiological natural fruit drop weight is also relatively light.

V. Suitable for planting region

Red Beauty citrus is widely adapted, and has been cultivated in Zhejiang, Sichuan, Chongqing, Guangdong, Hunan and other places. Red Beauty is suitable for the growth of the pH value of 5-7.5, the soil requirements of organic matter content of 2% or more, the effective thickness of the soil layer of 80cm or more, the water table 1m below. Altitude 100-800m is more suitable for growth, the optimal temperature should be 17-22 ℃, the lowest temperature in winter can not be lower than -5 ℃.

Six, cultivation points

1, red beauty citrus frost resistance is poor, high requirements for light and heat, so it is preferable to choose the winter without wind, warm and sunny, light enough garden planting. Soil to fertile, deep soil, high organic matter content, water retention and fertilizer capacity is appropriate.

2, red beauty citrus cold resistance is weak, easy to frost damage, heat, light, fertilizer requirements are high, in the northern edge of citrus cultivation zone, as a commercial cultivation, you should choose the appropriate cultivation, or the use of protected cultivation measures.

3, citrus fruit pests and diseases are more, red beauty common pests and diseases are mainly black spot disease, ulcer disease, anthracnose, red spider, rusty wall lice and so on. In the prevention and control should be taken as the main prevention, prevention and control of the combination of policy, give priority to the use of agriculture, physical, biological and other green prevention and control technology, combined with the law of the occurrence of pests and diseases to carry out chemical control.

4, red beauty citrus tree strong, high requirements for fertilization. Fertilizer mainly nitrogen fertilizer, organic fertilizer, with foliar fertilization, follow the principle of thin fertilization, to ensure that the tree potential, at the same time on the excessive yield tree reasonable fruit thinning, in order to prevent the continuous yield caused by the gradual weakening of the tree potential. Also pay attention to timely irrigation, to reduce the occurrence of cracking phenomenon, more precipitation, it is necessary to timely drainage.