CN1136885A

CN1136885A - Hybrid vigor utilizing technique for Chinese sorghum 'Liaoza No.10'

Info

Publication number: CN1136885A
Application number: CN 95110228
Authority: CN
Inventors: 石玉学; 杨晓光; 刘河山; 杨震; 邹剑秋; 孙贵荒; 陈悦; 高月亮; 张欣; 曹嘉颖
Original assignee: CHINESE SORGHUM INST LIAONING ACADEMY OF AGRICULTURAL SCIENCES
Current assignee: CHINESE SORGHUM INST LIAONING ACADEMY OF AGRICULTURAL SCIENCES
Priority date: 1995-05-31
Filing date: 1995-05-31
Publication date: 1996-12-04

Abstract

A technique for selectively developing hybridized seed of sorghum by means of hybrid vigor features that its sterile line "7050A" is self-selecting line with advantages of having two cytoplasms A1 and A2, high combining ability and resisting head smut, resisting lodging and leaf diseases and its restoring line "9198" is also self-selecting line with advantages of recovering sterile nature of A1 and A2, high combining ability and resisting head smut and aphid. The hybridized seed (7050AX9198) features very strong hybrid vigor, resisting diseases and flattening, high quality, etc.

Description

The assorted No. 10 heterosis utilization technology of Chinese sorghum the Liao Dynasty

China's Chinese sorghum heterosis utilization technology mainly is to use the male sterile line TX622A that introduces from the U.S. at present ₁, TX3197A ₁And TX378A ₁Deng being maternal, be that male parent combines crossbreed with China's recovery, than about general kind volume increase 10-20%, not resistant to lodging, anti-No. 3 head smut biological strains, not anti-aphid.Therefore, utilize the hybrid vigour technology, select high yield, anti-head-smut, anti-aphid, crossbreed resistant to lodging and use significant aborning.

Utilizing I institute free male sterile line 7050A and free recovery is 9198, utilizes the hybrid vigour technology, selects high yield, high-quality, anti-head smut of sorghum, anti-aphid, crossbreed resistant to lodging.

7050A has A by my free male sterile line ₁A ₂Two kinds of cytoplasmic sterilities, sterility is stable, the coordinate force height, anti-2, No. 3 head smut of sorghum biological strains, leaf mould resistant, resistant to lodging.

9198 recovery systems are also free by me, and restorability is good, and can recover A ₁A ₂Two kinds of sterility, the general combining ability height.Anti-No. 2 head smut biological strains, high anti-to No. 3 smut microspecies, high anti-aphid.

7050A * 9198th utilizes to contain A ₁A ₂Cytoplasmic 7050A and recovery A ₁A ₂Cytoplasmic 9198 crossbreed that combine.

7050A * 9198 have very strong hybrid vigour.Participated in provincial regional test in 1994.This hybrid combination output is the highest, and average yield per mu is 514.2 kilograms in 13 points of the whole province are inferior, 732.3 kilograms of the highest per mu yields.Comparison is according to the assorted volume increase 31.3% of crossbreed the Liao Dynasty.

1994,22 points were planted experimentally in the whole province, 565.0 kilograms of average yield per mus, and comparison is according to kind of a volume increase 30.9%.

7050A * 9198 have multiple resistance.This crossbreed inoculates through 2, No. 3 silk smut-fungi soil of 0.6%, and the incidence of disease is 0, shows 2, No. 3 head smut immunity.The high resistance aphid, leaf mould resistant, resistant to lodging.

7050A * 9198 crossbreed, milled rice rate 81.0%, grain protein content 8.65%, lysine content are 0.225%, content of starch 70.42%, tannin content are 0.05%.Good palatability is superior rice.

7050A * 9198 crossbreed is to utilize 7050A ₁A ₂The crossbreed that cytoplasm is formed has overcome the hereditary fragility of single cell matter.

Embodiment:

7050A is by SPL132B * TAM428 artificial emasculation hybridization, through too much forming for artificial selection.7050B proterties neat and consistent is with TAM428A ₂And TX622A ₁Being non-recurrent parent, is recurrent parent with 7050B, and in 10 generations of backcross transformation, similar proterties is good, and sterility is stable.

130-140 centimetre of 7050A plant height, the bud scale green, the seedling look is visited green, cured matter vein, blade 20-22 sheet.Number of growing days 130 days.Tight in the fringe, tubular.The white grain of red shell, the grain point has red point, and grain is round.

9198 to recover system be short four be female parent, is male parent with 5-26, and artificial emasculation is hybridized, and forms through the selection of 8 generations.170 centimetres of 9198 plant heights, bud scale purple, vein green, blade 20-22 sheet.Number of growing days 130 days.Tight in the fringe, the slubbing type.The white grain of black shell, grain length spins.Thousand kernel weight 33.8 grams, the fringe grain weighs 84.9 grams.The flower pesticide milk yellow, unisexual flower is not opened.

7050A * 9198 crossbreed, about 200 centimetres of plant heights, the bud scale purple, seedling development is fast, and it is many to tiller, blade 20-22 sheet.Number of growing days 105-133 days.Spike length spins, and 33 centimetres of spike lengths, single fringe grain weigh 90.4 grams, thousand kernel weight 33.8 grams.The white grain of black shell.

7050A * 9198 cross breeding seed technology:

Date of seeding: broadcast maternal 7050A earlier, broadcast the first phase male parent after female parent is taken root, maternal exhibition leaf is broadcast the second stage of male parent.

The row ratio: maternal 10-12 is capable, male parent 2 row.

Density: 7000-8000 strain/mu.

Isolation condition: more than 300 meters.

Claims

. the assorted No. 10 heterosis utilization technology of the Liao Dynasty, claimed intellectual property.2, the 7050A male sterile line has two cytoplasmic sterility of A1, A2, claimed intellectual property.3,9198 recover the general combining ability height of system, have multiple resistance, claimed intellectual property.