CN102812879A - Rice seedling transplanting method for hybrid rice male parents - Google Patents

Abstract

The invention discloses a rice seedling transplanting method for hybrid rice male parents, which comprises the following steps of: planting the hybrid rice male parents on two ends of a paddy field, planting hybrid rice female parents between two ends of the paddy field; and linearly arranging rice seedling pits of the hybrid rice male parents on the two ends of the paddy field, and planting three pits of hybrid rice male parent seedlings in a pit field, wherein distances among the three pits of hybrid rice male parent seedlings are equal, and distances among the three pits of hybrid rice male parent seedlings are to 5cm-10cm, and 15-18 hybrid rice male parent seedlings are transplanted in each pit. By adopting the rice seedling transplanting method, the pollination rate and the result rate of the female parents are facilitated; and compared with that of the paddy field using the common seedling transplanting method, 50-150 Kg of hybrid rice seeds are increased per mu in an experimental pot.

Description

A kind of hybrid rice male parent rice transplanting method

Technical field

The present invention relates to the rice transplanting method, especially a kind of hybrid rice male parent transplanting method.

Background technology

In the breeding of hybrid rice production process, if will obtain high yield, the cultivation management of male parent is crucial, and male parent output need improve, and under the prerequisite of flower synchronization, seed production will obtain to increase accordingly; To be improved as if male parent output; That necessarily requires the male parent seedling many strong sprout, could guarantee that male parent has abundant pollen to pollinate to female parent, if maternal pollination rate is high; Ripening rate also can correspondingly improve so; Output has also just increased naturally, yet, how to cultivate and could let the strong seedling of male parent seedling difficult problem really.

The applicant carries out breeding of hybrid rice since the seventies; Through updating of three more than ten years, breeding technology for hybrid rice has obtained improving and development, and seed production is in continuous raising; But before and after 2002, when reaching 200 kilograms, the seed per mu yield just again can't increase.

Summary of the invention

To the weak point of prior art, the present invention aims to provide a kind of hybrid rice male parent transplanting method, guarantees to improve hybrid rice male parent output.

A kind of hybrid rice male parent transplanting method comprises the steps:

1 in the two ends of paddy field plantation hybrid rice male parent, and the plantation hybrid rice is maternal between the two ends of paddy field;

2 at the paddy field two ends rice shoot cave of hybrid rice male parent is arranged in a linear; Plantation three nest hybrid rice male parent rice shoots in ground, a cave; Distance equates between the said three nest hybrid rice male parent rice shoots, and distance is 5 centimetres-10 centimetres between the three nest hybrid rice male parent rice shoots;

3 each nest are inserted kind of hybrid rice male parent rice shoot 15-18 strains.

Adopt above-mentioned rice transplanting method; Promptly in ground, paddy field one cave, plant three nest male parent rice shoots; Three nest male parent rice shoots constitute equilateral triangle, and the equilateral triangle length of side is used above-mentioned hybrid rice male parent rice shoot rice transplanting method experiment between 5 centimetres-10 centimetres; The ground plantation in continuous 3 years from 10 mu to 100 mu, it is following to draw test result:

1, the output of every mu of male parent is brought up to 300-320 jin every mu from original 180-220 jin;

2, the output of male parent has improved; The pollen density of male parent has also increased simultaneously; Help improving the maternal rate of being pollinated and fruiting rate; Through comparing with commonsense method rice transplanting field, the experiment field increases production 50 kilograms-150 kilograms of hybrid rice seeds for every mu, and economic worth has increased 600-2000 unit on original basis.

Adopt above-mentioned rice transplanting method, broken through the neck of the existing output of hybrid rice, changed the situation of 200 kilograms of seeds of seed farm per mu yield.

Description of drawings

Fig. 1 inserts kind of a layout sketch map for the paddy field rice shoot;

In the accompanying drawing: ground, 1 one caves 2 male parent rice shoots.

Embodiment

Below in conjunction with accompanying drawing the present invention is described further.

As shown in Figure 1: 1 in the two ends of paddy field plantation hybrid rice male parent, and the plantation hybrid rice is maternal between the two ends of paddy field;

Hybrid rice male parent rice shoot cave, 2 paddy field two ends is arranged in a linear; In ground, paddy field one cave 1, three nest hybrid rice male parent rice shoots 2 have been planted; Distance equates between the three nest hybrid rice male parent rice shoots, and distance is 5 centimetres-10 centimetres between the three nest hybrid rice male parent rice shoots;

3 each nest are inserted kind of hybrid rice male parent rice shoot 15-18 strains.

Claims (1)

1. a hybrid rice male parent transplanting method is characterized in that comprising the steps:

(1), plants the hybrid rice male parent at the two ends of paddy field, plantation hybrid rice female parent between the two ends of paddy field;

(2), paddy field two ends hybrid rice male parent rice shoot cave is arranged in a linear; Plantation three nest hybrid rice male parent rice shoots (2) in ground, a cave (1); Distance equates between the said three nest hybrid rice male parent rice shoots (2), and distance is 5 centimetres-10 centimetres between the three nest hybrid rice male parent rice shoots (2);

(3), each nest is inserted kind of hybrid rice male parent rice shoot 15-18 strains.