種苗二號三倍體無子西瓜雄親花粉採集量、活力及授粉特性之研究

Pollen Viability of Seedless Watermelon cv. TSS No.2 Male Parent L-08

黃泮宮(Pang-Kong Huang) ； 何偉眞(Wai-Jane Ho) ； 張武男(Woo-Nang Chang)

《中國園藝》 37卷1期 (1991/03) Pp. 55-62

https://doi.org/10.6964/JCSHS.199103.0055

摘要

種苗二號三倍體無子西瓜雄親於定植後50至80日，其花藥花粉採集量為1.5~2.4×10^4粒。不同株齡之花粉其平均發芽率秋作爲70~82%、春作爲80~92%：生長至果實成熟期時，每朶雄花花粉採集量已少於1500粒。每日中又以上午6:30至8:30間採集花粉效率爲最高。春作於上午10:30後，花藥上花粉採集量顯著減少。雄花摘取後置於未加濕之玻璃皿中，有效花粉採集量較低且呈萎縮。低於16℃或高於28℃之溫度對花粉發芽率有負面之影響。採種若以當日開花之花粉授粉，可得最高之著果率與種子數。

關鍵字

花粉採集量 ； 花粉活力 ； 著果

並列摘要

Summary Pollen production per flower and germination rate of seedless watermelon cv. TSS No.2 male parent reached the highest at 50 to 80 days after transplanting and the number of pollen grain per flower reduced to less than 1500 at fruit maturing stage. Pollen collection between 6:30 to 8:30 A.M. had the highest collection efficiency, but is significantly reduced after 10:30 A.M. in spring crop.
Detached male flowers stored in unhumidified petri dish which released less pollen grains than those stored in humidified treatment Percent of pollen germination is reduced at temperature lower than 16℃ or higher than 28℃. Pollinated with pollen of newly opened flower had the highest fruit setting and number of seeds per fruit.

並列關鍵字

pollen production ； pollen activity ； fruit set