CN1365605A

CN1365605A - Application of pant growth regulator 'Aiduoshou' in hybridized rice

Info

Publication number: CN1365605A
Application number: CN01131557A
Authority: CN
Inventors: 黄桂荪; 范燕萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-11-21
Filing date: 2001-11-21
Publication date: 2002-08-28
Anticipated expiration: 2021-11-21
Also published as: CN1175722C

Abstract

A method for applying the plant growth regulator "Aiduoshou" to produce hybrid rice seeds for improving quality and increasing yield to optimal effect is disclosed, and it features that it is dissolved in solvent with different proportions for different stages of rice growth.

Description

" IDALL's receipts " plant growth regulator sprays the using method of breeding of hybrid rice

Technical field

The present invention relates to the using method of a plant growth regulators, be meant that further a kind of " IDALL's receipts " plant growth regulator sprays the using method of breeding of hybrid rice.

Background technology

" IDALL's receipts " are the epoch-making high-tech products of Japanese Asahi Chemical Manufacturing Co., Ltd., get permission official register (PD165-92) as plant growth regulator in the Ministry of Agriculture in December, 1992.In the past few years, the said firm instructs China peasant to use this product with " using method of epoch-making novel pesticide " IDALL's receipts " " (following abbreviation " using method ").But the problem of being somebody's turn to do " using method " existence is: 1. the crops of Shi Yonging have only 66 kinds, and are very incomplete, and its medium and small crop is many, and big crop is few, do not meet the reality of China.Special because China is paddy rice kingdom, the hybrid rice cradle, breeding of hybrid rice is again the basic of development hybrid rice, but is somebody's turn to do the use introduction that " using method " wilfully do not have this respect.2. about concentration multiple, processing phase with use the introduction in these three columns all fairly simple, go operation according to this using method, the performance " IDALL's receipts " well that differs surely improves quality, the optimum efficiency of results and increase output ahead of time.If can study at the crop feature, improve " using method ", believe that then its effect can more gear to actual circumstances than existing " using method " listed volume increase data.Just do not sum up using method in addition breeding of hybrid rice is basic, therefore more worth finding out to fill up this blank.3. have only 3000 times of concentration and four processing periods about paddy rice in should " using method ", not exclusively be adapted to breeding of hybrid rice, because paddy rice is a self pollination crop, and the production of hybrid seeds is cross pollination behavior (be that maintenance line or the pollen that recovers system scatter male sterile line, be referred to as the seminal propagation or the production of hybrid seeds).This just require " using method " more advanced, more science, be more suitable for seed production in hybrid rice, only in this way, the effect that competence exertion " IDALL's receipts " is best.

Summary of the invention

Purpose of the present invention, be to solve " IDALL's receipts " plant growth regulator and have nothing that " using method " exist now specifically at the technical problem of the suitable using method of breeding of hybrid rice, provide a kind of " IDALL's receipts " plant growth regulator is exclusively used in the using method that sprays breeding of hybrid rice, improve quality to reach, do sth. in advance the optimum efficiency of results and increase output.

Technical solution of the present invention is that its consumption is with every 667m ²(being 0.07 hectare) is each, and its concentration is 2000 to 8000 times with " IDALL's receipts " 10ml solvent 1 bag, and promptly every bag 10ml solvent is converted clear water 20 to 80Kg.

Adopt " IDALL's receipts " provided by the invention to spray the using method of breeding of hybrid rice, have and improve percentage of seedgermination and outcrossing seed-setting rate, improve thousand grain weigth, premature ripening and improvement quality and finally reach the effect that increases output.

Here what is particularly worth mentioning is that, because the inventive method found the preferred plan that " IDALL's receipts " is applied to spray breeding of hybrid rice, so it has overcome that the outcrossing seed-setting rate that " 920 " gibberellin for many years cann't be solved is lower, the seed circularity is relatively poor and problem such as father's flower of female parent time difference.As everyone knows, two during the last ten years, " 920 " gibberellin that China develops voluntarily, and it is effective to use crossbreeding rice, has solved a lot of problems, has played critical effect for increasing substantially crossbreeding output.But because the crossbreeding rice problem is more, outstanding is " storehouse " " source " deficiency greatly, the problem that outcrossing seed-setting rate is not high, though improved much after using " 920 ", but outcrossing seed-setting rate still has only 30～40%, it is 50～60% that height is crossed not at all, 70～80% of this and conventional rice, even compare up to the ripening rate more than 90%, gap is still very big, therefore depend merely on and use " 920 " and be difficult to address this problem fully, next is that blighted grain is more, the seed circularity is relatively poor, and father's flower of female parent time difference, this also is to use " 920 " indeterminable problem.

According to the study, " IDALL's receipts " have the effect that promotes cytoplasm circulation, raising cell and column cap activity, strengthens various physiological metabolism functions.Test shows that " IDALL's receipts " can improve leaf photosynthesis speed, promotes the crop dry matter to form, and reaches the purpose of " increasing income ".Simultaneously, photosynthetic product can be transported in the seed quickly and effectively again and go, so just can reduce unfilled gtains, increase fertilization grain and thousand kernel weight, improve economic flow rate.On the other hand, spray " IDALL's receipts " and have the effect that impels paternal pollen sprouting and pollen tube growth and increase normal pollen number, reduce improper pollen number, improve pollen quantity and quality again.This spends, increases the clever flower of insemination, raising outcrossing seed-setting rate to male sterile line by paternal pollen pollination insemination, the non-insemination grain husk of minimizing, has unique effect.The result of two aspect effects can improve crossbreeding output effectively." IDALL's receipts " above-mentioned these functions and characteristic are again " 920 " not available characteristics.Therefore, " IDALL's receipts " are applied with " 920 ", do not repel mutually, and complementary its weak point is brought into play its length, thereby solved a crossbreeding high yield difficult problem, reaches the purpose of further raising output.

Description of drawings

Fig. 1 sprays period and compound concentration concerns schematic diagram for of the present invention;

Fig. 2 is used for the effect table that breeding of hybrid rice is compared with CK for the present invention with " IDALL's receipts ".

Embodiment

Referring to Fig. 1, according to the aforementioned techniques solution, specific to different the growing period of breeding of hybrid rice, its spraying concentration is as follows: seed soaking: soak seed 12 to 24h with 6000 to 7000 times; Seedling:, spray 5000 to 6000 times in 2.5～3.0 leaf phases of rice shoot; 1～2 phase of ear differentiation: spray 4000 to 5000 times; 5～6 phases of ear differentiation: spray 3000 to 4000 times; See that the fringe phase is to beginning the fringe phase: spray 2000 to 3000 times; Neat fringe latter stage to the grouting initial stage: spray 2000 to 3000 times; Grouting latter stage to the cured ripe initial stage: spray 5000 to 6000 times.

The spraying concentration that adopts the above-mentioned period that sprays to effect and the effect that the paddy rice production of hybrid seeds produces is: seed soaking: promote that seed sprouting takes root, improve percentage of seedgermination and percentage establishment of seedling; Seedling: can extraneous root, increase tiller, increase the stem foot width, cultivate strong seedling, it is fast to turn green after the transplanting, and cold hardiness is strong, and low position tiller increases, and the percentage of earbearing tiller improves; The ear differentiation 1-2 phase: promote first and second stalk and the differentiation of grain husk flower, minimizing branch stalk and grain husk are spent and are degenerated; 5～6 phases of ear differentiation: promote pollen mother cell to form and the reduction division of acceleration mother cell, increase the pollen mother cell vigor; See that the fringe phase is to beginning the fringe phase: strengthen pollen and column cap vigor, promote pollen germination and accelerate pollen tube growth speed, help the pollination insemination, female parent is bloomed ahead of time, obviously improves stigma exposing ratio and outcrossing seed-setting rate; Neat fringe latter stage to the grouting initial stage: improve leaf photosynthesis speed, quicken the cauline leaf material and shift to seed rapidly, reduce blighted grain, increase thousand kernel weight; Grouting latter stage to the cured ripe initial stage: be transported to the seed effect that also has premature ripening and discolor except that continuing acceleransstoff.Above-mentioned about the effect and effect can be confirmed with reference to figure 2.As can be seen from Figure 2, spray (CK) that the ratio of " IDALL's receipts " production of hybrid seeds do not spray and improve percentage of seedgermination 2.4～7.0%, improve outcrossing seed-setting rate 8.2～26.2%, improve thousand kernel weight 0.3～1.0g, and improve every 667m ²Theoretical yield 23.7～82.4kg improves actual production 19.1～81.8kg.

" IDALL's receipts " according to the inventive method preparation when solution sprays in concrete operations, generally adopt knapsack sprayer, also can adopt instruments such as power spraye.In order to save cost, reduce recruitment and medication, improve pharmacy effect, best bet is using " 920 " or neutrality, when acidity or alkalescent agricultural chemicals and other agricultural material product, just in time is again " IDALL's receipts " operating period, both spray in mixing, reduce independent recruitment as far as possible." IDALL's receipts " spray and it should be noted that when using because of " IDALL's receipts " belong to neutrality or faintly acid product, thus don't mix use with the strong basicity means of agricultural production, in case lost efficacy; Add a small amount of sticker during use and spray drug effect the best; Do not have service time " 920 " and agricultural chemicals strict, needn't consider inside even from weather basically and cause losing efficacy.

Claims

1, a kind of " IDALL's receipts " plant growth regulator sprays the using method of breeding of hybrid rice, it is characterized in that its consumption is with every 667m ²Each its concentration is 2000 to 8000 times with " IDALL's receipts " 10ml solvent 1 bag, and promptly every bag 10ml solvent is converted clear water 20 to 80Kg.

2, " IDALL's receipts " according to claim 1 plant growth regulator sprays the using method of breeding of hybrid rice, it is characterized in that, what breeding of hybrid rice was different grows period, and its spraying concentration is as follows: seed soaking: soak seed 12 to 24h with 6000 to 7000 times; Seedling:, spray 5000 to 6000 times in 2.5～3.0 leaf phases of rice shoot; 1～2 phase of ear differentiation: spray 4000 to 5000 times; 5～6 phases of ear differentiation: spray 3000 to 4000 times; See that the fringe phase is to beginning the fringe phase: spray 2000 to 3000 times; Neat fringe latter stage to the grouting initial stage: spray 2000 to 3000 times; Grouting latter stage to the cured ripe initial stage: spray 5000 to 6000 times.