DB52T 788-2012 油菜隱性核不育兩系雜交種父本中心式制種技術(shù)規(guī)程

DB52DB52/T788—2012油菜隱性核不育兩系雜交種父本中心式制種技術(shù)規(guī)程Technicalregulationofhybridprductionwithmaleparent-centeredpatternforGMSinBnapus貴州省質(zhì)量技術(shù)監(jiān)督局發(fā)布I 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 5 5 5 5 6 6 6 6 6 6 6 6 6 6 6 61指不育性受細(xì)胞核雄性不育隱性基因控制，兄妹交后代不育株與可育株分離比例為1:1、可育為隔離，最低安全空間隔離距離1000m以上。隔離區(qū)內(nèi)可種植制種品種的父本或小麥、綠肥等非2制種區(qū)光照充足、通風(fēng)條件好，油菜花期溫度不能低于10℃,陰雨連綿天氣較少。根據(jù)品種父、母本的特征特性及生育期確定父、母本的適宜播期及播差期。宜在9月中旬選擇陰天3苗床地應(yīng)保持土壤濕潤。如遇連續(xù)干旱天氣，應(yīng)在每天傍晚時分用清水澆施1次苗床地。定苗后根據(jù)幼苗長勢施肥，如果幼苗葉片發(fā)黃，應(yīng)及時追肥。肥料使用應(yīng)符合NY/T496標(biāo)準(zhǔn)的規(guī)定。每667㎡用4早早早早早早早早早早早早早古古古古古古古古古古古古古古古古古早早兒早早早早?早早古早心早古早早早早早早早早早早早早早早早早早早早早早早早早早古早早古古早早早早早古古古古古古古古古古古早古古古古古古古古古古古古古古古早早早早早古書早早早早公古古早早早早早早早早早早早早早早早早早早早早早早早早早早早古早早早早古早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早古古古((代表父本，早代表母本)圖2母本等行距種植圖圖1父、母本間比為1間4種植圖早早早早早早早早早早早早早圖1父、母本間比為1間4種植圖早早早早早早古早早早早早早早早早古早早早早早早廣早早早早參早早早早早早古古古古古古古古古古古母本：母本行距40cm,株距20cm,單株移栽，密度8300株/667m2(依不同組合而定)。父本：父本種植于母本行間，不單獨占行。每間隔4行母本在其行間按單80cm,見圖2。早早早早母本：母本行距40cm,株距20cm,單株移栽，密度8300株/667m2(依不同組合而定)。父本：父本種植于母本行間，不單獨占行。每間隔4行母本在其行間按單80cm,見圖2。早早早早早早早早早早早古古早早古早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早古早早早早早早早早早早早早早早早早古古早早早早早早早早早早早早早早早早早早早早早早早古古古古早古古古古古古古5株/667m2。(依不同組合而定)。早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早早(3代表父本，早代表母本)6將已開花的可育株和未開花但可識別的可育株連根撥除，并全部運(yùn)出制種區(qū)外。每隔2d～3d拔除