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A Study on Pollen Viability of Piper colubrinum Link 被引量:1
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作者 Chen Yi Shang Cheksum Supiah Tawan +1 位作者 Paulus Amin Det Sim Soon Liang 《Journal of Agricultural Science and Technology(B)》 2012年第11期1177-1183,共7页
Pollen viability study on Piper colubrinum Link. carried out to develop interspecific hybridization between P. nigrum L. and P. colubrinum Link.. This plant has good potential as a donor plant in breeding programme fo... Pollen viability study on Piper colubrinum Link. carried out to develop interspecific hybridization between P. nigrum L. and P. colubrinum Link.. This plant has good potential as a donor plant in breeding programme for Phytophthora to foot rot resistance in the cultivated species, P. nigrum. This project was carried out to reveal the optimum time to collect pollen of P. colubrinum for artificial pollination. Through this study, anther dehiscence was proved occurred around 9 am. Based on the result obtained from study on the time of anther dehiscence, the pollen was classified into five stages for testing on the viability, i.e., stage 1, before anther dehiscence, i.e., around 7 am (pollen obtained by crushing on the anther); stage 2: immediately after anther dehiscence, i.e., around 9 am; stage 3: two hours after anther dehiscence, i.e., around 11 am; stage 4: four hours after anther dehiscence, i.e., around 1 pm; and stage 5: six hours after anther dehiscence, i.e., around 3 pm. Data obtained from pollen germination and pollen tube growth study showed that pollen of P. colubrinum was the most viable at two hours after anther dehiscence and onward. It was also proved that the viability can be maintained up to at least eight hours. Pollen obtained before anther dehiscence by crushing on the anther was found less viable with lower percentage of pollen germination and retarded pollen tube growth. In other words, the experiment enlightened that artificial pollination between P. nigrum L. and P. colubrinum Link was ideally to be carded out approximately starting from 11 am until 5 pm, considering the viability of pollen ofP. colubrinum. 展开更多
关键词 P. nigrum L. P. colubrinum Link. pollen viability artificial pollination interspecific hybridization.
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彩色君子兰栽培中值得探讨的几个问题(一)
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作者 刘晓锋 《中国花卉盆景》 2000年第12期10-10,共1页
彩色君子兰(金丝兰、缟兰)是君子兰中的佼佼者。自1997年在第四届中国花博会(上海)上获得殊荣以后,屡次在各类大展中夺冠。养花爱好者竞相购买引种,价格因此居高不下,有些品种售价高达几万乃至几十万元。可以说,彩色君子兰不仅有极高的... 彩色君子兰(金丝兰、缟兰)是君子兰中的佼佼者。自1997年在第四届中国花博会(上海)上获得殊荣以后,屡次在各类大展中夺冠。养花爱好者竞相购买引种,价格因此居高不下,有些品种售价高达几万乃至几十万元。可以说,彩色君子兰不仅有极高的观赏性,还有极高的经济价值。只不过养好彩色君子兰并不容易。因为其变化无穷的彩色纵纹由复杂的遗传基因所控制,容易使人栽来栽去不得要领。 展开更多
关键词 彩色君子兰 繁育 人工授粉杂交 出苗率
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