江西农业学报
江西農業學報
강서농업학보
ACTA AGRICULTURAE JIANGXI
2013年
11期
19-21
,共3页
周明强%欧珍贵%班秀文%李志芳%黎青
週明彊%歐珍貴%班秀文%李誌芳%黎青
주명강%구진귀%반수문%리지방%려청
芭蕉芋%花粉活力%柱头可授性%杂交育种
芭蕉芋%花粉活力%柱頭可授性%雜交育種
파초우%화분활력%주두가수성%잡교육충
Canna edulis%Pollen viability%Stigma receptivity%Hybrid breeding
为探讨芭蕉芋杂交育种的可能性,采用TTC染色法和联苯胺-过氧化氢法对贵州种植的3个品种(材料)的花粉活力和柱头可授性进行了研究,结果表明:芭蕉芋花粉活力普遍低于其他作物,在离体条件下,36 h后,基本没有活力,寿命较短,影响了芭蕉芋种子结实率;柱头可授性随时间的变化而变化,从当日19:00到次日10:30均呈上升趋势,随后开始下降,次日4:30~10:30是柱头可授性最强的时间,只要选择合适的时期辅以人工授粉,则可达到提高芭蕉芋授粉受精目的,从而进行新品种选育及改良。
為探討芭蕉芋雜交育種的可能性,採用TTC染色法和聯苯胺-過氧化氫法對貴州種植的3箇品種(材料)的花粉活力和柱頭可授性進行瞭研究,結果錶明:芭蕉芋花粉活力普遍低于其他作物,在離體條件下,36 h後,基本沒有活力,壽命較短,影響瞭芭蕉芋種子結實率;柱頭可授性隨時間的變化而變化,從噹日19:00到次日10:30均呈上升趨勢,隨後開始下降,次日4:30~10:30是柱頭可授性最彊的時間,隻要選擇閤適的時期輔以人工授粉,則可達到提高芭蕉芋授粉受精目的,從而進行新品種選育及改良。
위탐토파초우잡교육충적가능성,채용TTC염색법화련분알-과양화경법대귀주충식적3개품충(재료)적화분활력화주두가수성진행료연구,결과표명:파초우화분활력보편저우기타작물,재리체조건하,36 h후,기본몰유활력,수명교단,영향료파초우충자결실솔;주두가수성수시간적변화이변화,종당일19:00도차일10:30균정상승추세,수후개시하강,차일4:30~10:30시주두가수성최강적시간,지요선택합괄적시기보이인공수분,칙가체도제고파초우수분수정목적,종이진행신품충선육급개량。
In order to explore the possibility of hybrid breeding for Canna edulis, the author studied the pollen viability and stigma receptivity of three Canna edulis varieties planted in Guizhou by the methods of TTC staining and benzidine -H2 O2 .The re-sults showed that the pollen viability of Canna edulis was generally lower than that of other crops .Under the isolated condition for o-ver 36 hours, the pollen of Canna edulis was basically of no viability , and its short lifetime affected the seed setting rate .The stigma receptivity changed with time history , it showed a rising trend from 19:00 on that day to 10:30 on the next day , and then began to decline.From 4:30 to 10:30 on the next day, the stigma receptivity was the strongest .As a result, as long as we choice the right time and supplement artificial pollination , the objective of enhancing the fertilized rate of Canna edulis will be attained , and the breeding and improvement of new varieties will be realized successfully .