農作物種子進行經營的理念
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種子水分測定是指測定送驗樣品的種子水分,為種子安全貯藏、運輸等提供依據。種子水分測定必須使種子水分中自由水和束縛水全部除去,同時要盡最大可能減少氧化、fenjiehuoqitafahuixingwuzhidesunshi。zhongzishuifenyechengzhongzihanshuiliang,shizhizhongziyangpinzhonghanyoudeshuifenzhongliangzhanzhongziyangpinzhongliangdebaifenlv。pinzhongchundushizhipinzhongzaitezhengtexingfangmiandianxingyizhidechengdu,yongbenpinzhongdezhongzishuzhangongjianbenzuowuyangpinzhongzishudebaifenlvbiaoshi。zhenshixinghepinzhongchundujiandingshi,tongchangbazhongziyubiaozhunyangpindezhongzijinxingbijiao,huojiangyoumiaohezhizhuyutongqilinjinzhongzhizaitongyihuanjingtiaojianxiadetongyifayujieduandebiaozhunyangpindeyoumiaohezhizhujinxingbijiao。
當品種的鑒定性狀比較一致時(如自花授粉作物),則對異作物、異品種的種子、幼苗或植株進行計數;當品種的鑒定性狀一致性較差時(如異花授粉作物),則對明顯的變異株(一個或多個性狀與原品種育成者所描述的性狀明顯不同的植株)進(jin)行(xing)計(ji)數(shu),並(bing)作(zuo)出(chu)總(zong)體(ti)評(ping)價(jia)。新(xin)收(shou)的(de)或(huo)在(zai)低(di)溫(wen)貯(zhu)藏(zang)下(xia)處(chu)於(yu)休(xiu)眠(mian)狀(zhuang)態(tai)的(de)種(zhong)子(zi),采(cai)用(yong)標(biao)準(zhun)發(fa)芽(ya)實(shi)驗(yan),即(ji)使(shi)供(gong)給(gei)適(shi)宜(yi)的(de)發(fa)芽(ya)條(tiao)件(jian)仍(reng)不(bu)能(neng)良(liang)好(hao)發(fa)芽(ya)或(huo)發(fa)芽(ya)率(lv)很(hen)低(di)。在(zai)這(zhe)種(zhong)情(qing)況(kuang)下(xia),僅(jin)用(yong)發(fa)芽(ya)試(shi)驗(yan)測(ce)定(ding)其(qi)發(fa)芽(ya)率(lv),就(jiu)不(bu)可(ke)能(neng)測(ce)出(chu)種(zhong)子(zi)的(de)最(zui)高(gao)發(fa)芽(ya)率(lv),必(bi)須(xu)進(jin)一(yi)步(bu)測(ce)定(ding)其(qi)生(sheng)活(huo)力(li),了(le)解(jie)種(zhong)子(zi)潛(qian)在(zai)發(fa)芽(ya)能(neng)力(li),以(yi)便(bian)合(he)理(li)利(li)用(yong)種(zhong)子(zi)。中國糧油儀器網 http://www.98fo.cn/



