Selection method of seedless sweet orange

Abstract

The present application relates to a method for seedless sweet orange seed selection, which comprises the following steps: when the fruit of the sweet orange is ripe, obtain the shape of the fruit; select the primary selection object according to the shape of the fruit; obtain the longitudinal diameter and transverse diameter of the primary selection object diameter, calculate the ratio of the longitudinal diameter to the transverse diameter; select the reselected object according to the ratio; dissect the reselected object; determine that the fruit belongs to the seedless variation according to the results of the dissection, and use the corresponding branches of the reselected object for breeding . The above seedless sweet orange seed selection method adopts the screening method of sea selection, primary selection, re-selection and selection. Through the sea selection of mature fruits, it is simply selected according to the shape, and then only the primary selection objects are considered to calculate its longitudinal value. The ratio of the diameter to the transverse diameter is used for re-selection, and an appropriate amount of re-selection results are obtained before dissection for selection. On the one hand, it has the advantages of reasonable, efficient and simple seed selection procedures. On the other hand, the number of dissections is significantly reduced, and the fruit loss rate is low, which is beneficial Save human resources.

Description

technical field [0001] The application relates to the field of seed selection, in particular to a seedless sweet orange seed selection method. Background technique [0002] Scientific name of sweet orange: Citrus sinensis (L.) Osbeck, arbor, with few thorns or nearly no thorns. The leaves are usually slightly smaller than pomelo leaves, the wing leaves are narrow and long, the leaves are ovate or ovate-elliptic, rarely lanceolate, 6-10 cm long, 3-5 cm wide, or larger. Flowers white, with few flowers in raceme; calyx 5-3 lobed, petals 1.2-1.5 cm long; stamens 20-25; style strong, stigma enlarged. The fruit is spherical, oblate or oval, orange to orange red, the peel is difficult or easy to peel off, the sac is 9-12 petals, the core is solid or half full, the flesh is light yellow, orange red or purple red, sweet or slightly sweet Slightly sour; few or no seeds, milky white cotyledons, multiple embryos. The flowering period is March-May, the fruit period is October-December...

AI Technical Summary

Problems solved by technology

[0004] However, the traditional bud selection is to carry out seedless selection when the fruit is ripe. The current method is anatomical method, that is, when the fruit is ripe, the fruit is dissected plant by plant and branch by branch in the orchard to find seedless individual plants or seedless branches; That is, to dissect the fruit one by one or each branch, this kind of seed selection method is wasteful, costly, complicated and inefficient

Moreover, when the fruit is concentrated and mature, because the number is often extremely huge, many seedless buds cannot be found in time by using dissection methods.

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