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種業行業簡介

農作物種子的分類

農(nong)作物種(zhong)(zhong)(zhong)子(zi)(zi)(zi)可(ke)分為有(you)胚(pei)乳(ru)(ru)種(zhong)(zhong)(zhong)子(zi)(zi)(zi)和(he)無胚(pei)乳(ru)(ru)種(zhong)(zhong)(zhong)子(zi)(zi)(zi)，有(you)胚(pei)乳(ru)(ru)種(zhong)(zhong)(zhong)子(zi)(zi)(zi)由種(zhong)(zhong)(zhong)皮、胚(pei)和(he)胚(pei)乳(ru)(ru)組成，包括蓖麻、煙草、西紅(hong)柿、柿、小麥、水稻、玉米(mi)、高粱(liang)和(he)洋蔥等植物的(de)種(zhong)(zhong)(zhong)子(zi)(zi)(zi)；無胚(pei)乳(ru)(ru)種(zhong)(zhong)(zhong)子(zi)(zi)(zi)包括大豆、落花(hua)生、棉、油菜、瓜類、慈(ci)姑、澤瀉等的(de)種(zhong)(zhong)(zhong)子(zi)(zi)(zi)。

農作物種子檢驗規程

農(nong)作物種(zhong)子(zi)檢(jian)(jian)(jian)驗(yan)規程由扦(qian)樣、檢(jian)(jian)(jian)測(ce)(ce)和(he)結果報告(gao)三個方面(mian)的(de)內容(rong)組成。扦(qian)樣是從大量(liang)(liang)的(de)種(zhong)子(zi)中，隨機取得一個重量(liang)(liang)適當(dang)，有代表(biao)性的(de)供(gong)檢(jian)(jian)(jian)樣品(pin)(pin)，檢(jian)(jian)(jian)測(ce)(ce)部(bu)分包括種(zhong)子(zi)的(de)外在品(pin)(pin)質(zhi)（凈度(du)、發芽率、水分含量(liang)(liang)、生活力、重量(liang)(liang)和(he)健康狀況）和(he)內在品(pin)(pin)質(zhi)（真實性和(he)品(pin)(pin)種(zhong)純度(du)）的(de)檢(jian)(jian)(jian)測(ce)(ce)。結果報告(gao)是對(dui)種(zhong)子(zi)的(de)質(zhi)量(liang)(liang)檢(jian)(jian)(jian)驗(yan)報告(gao)。

如何選購種子

購買種子首先要問清楚生產日期，放置過久的種子可能變質不利于發芽生長；其次要根據土壤的性質、環境溫度、生長的溫度等環境因素選擇合適的種子，注意看種子的說明書，最后注意選購的種子品牌，以(yi)發芽率高、顆粒飽(bao)滿的種子為宜，注(zhu)意不要買到假種子。

種子的傳播方式有幾種

植(zhi)物(wu)(wu)種(zhong)子的(de)傳(chuan)(chuan)(chuan)(chuan)播(bo)(bo)(bo)方式有：①風力傳(chuan)(chuan)(chuan)(chuan)播(bo)(bo)(bo)：依(yi)(yi)靠風來傳(chuan)(chuan)(chuan)(chuan)播(bo)(bo)(bo)種(zhong)子；②水(shui)力傳(chuan)(chuan)(chuan)(chuan)播(bo)(bo)(bo)：依(yi)(yi)靠水(shui)流傳(chuan)(chuan)(chuan)(chuan)播(bo)(bo)(bo)種(zhong)子；③動(dong)物(wu)(wu)傳(chuan)(chuan)(chuan)(chuan)播(bo)(bo)(bo)：依(yi)(yi)靠動(dong)物(wu)(wu)傳(chuan)(chuan)(chuan)(chuan)播(bo)(bo)(bo)種(zhong)子；④自體(ti)傳(chuan)(chuan)(chuan)(chuan)播(bo)(bo)(bo)：依(yi)(yi)靠植(zhi)物(wu)(wu)自身(shen)傳(chuan)(chuan)(chuan)(chuan)播(bo)(bo)(bo)種(zhong)子。

種子是由什么發育而來的

胚珠(zhu)發(fa)(fa)育(yu)(yu)成種(zhong)子(zi)(zi)，受精卵發(fa)(fa)育(yu)(yu)成胚，子(zi)(zi)房(fang)發(fa)(fa)育(yu)(yu)成果(guo)實，珠(zhu)被發(fa)(fa)育(yu)(yu)成種(zhong)皮，子(zi)(zi)房(fang)壁發(fa)(fa)育(yu)(yu)成果(guo)皮。