CAJ | 학술논문

[目的]研究芝麻纵向不同部位的开花结蒴的规律以蒴果的发育特性。[方法]以郑芝98N09为研究对象，于芝麻盛花期将其纵向划分为下部节位（8节位以下）、中部节位（9～20节位）和上部节位（20节位以上），测定不同部位开花和结蒴数目、蒴果长度、宽度、鲜重、籽粒鲜重和干重、以及果皮干重。[结果]随着节位的增加，郑芝98N09开花和结蒴数目呈先增加后下降的变化趋势。其中，在第15节位开花数目达最大值，为9.3朵/节；第12节位结蒴数目达最大值，为4.2个/节位。不同部位结蒴能力比较，中部节位结蒴能力最高，开花结蒴率为45.1%，上部节位次之，为30.1%，下部节位仅为25.0%。中部蒴果的长度、宽度、鲜质量和籽粒的鲜质量、干质量以及果皮干质量均高于下部蒴果和上部蒴果；下、中、上部蒴果平均灌浆速率分别为0.0035、0.0044、0.0031 g/(蒴·d)，表明在蒴果发育过程中光合物质优先供应中部蒴果。[结论]该研究结果为芝麻高产栽培提供理论依据。
[목적]연구지마종향불동부위적개화결삭적규률이삭과적발육특성。[방법]이정지98N09위연구대상，우지마성화기장기종향화분위하부절위（8절위이하）、중부절위（9～20절위）화상부절위（20절위이상），측정불동부위개화화결삭수목、삭과장도、관도、선중、자립선중화간중、이급과피간중。[결과]수착절위적증가，정지98N09개화화결삭수목정선증가후하강적변화추세。기중，재제15절위개화수목체최대치，위9.3타/절；제12절위결삭수목체최대치，위4.2개/절위。불동부위결삭능력비교，중부절위결삭능력최고，개화결삭솔위45.1%，상부절위차지，위30.1%，하부절위부위25.0%。중부삭과적장도、관도、선질량화자립적선질량、간질량이급과피간질량균고우하부삭과화상부삭과；하、중、상부삭과평균관장속솔분별위0.0035、0.0044、0.0031 g/(삭·d)，표명재삭과발육과정중광합물질우선공응중부삭과。[결론]해연구결과위지마고산재배제공이론의거。
[Objective] This study aimed to explore the capsule development at differ-ent positions of sesame (Sesamum indicum). [Method] The number of flowers and capsules at lower part (below the 8th node from the bottom), middle part (at 9th-20th nodes from the bottom) and upper part (above the 20th node) of sesame plants (Zhengzhi 98N09) was counted. The length, width, fresh weight of the capsules, fresh and dry weight of the seeds, and the dry weight of the capsule shel s at dif-ferent growth stages were measured. [Result] From the bottom to the top of sesame plants, the numbers of flowers and capsules at each node showed a trend of first increasing and then decreasing. The 15th and the 12th node had the maxi-mum flower number (9.3 flowers per node on average) and the maximum capsule number (4.2 capsules per node on average), respectively. The middle nodes had the highest capsule setting rate, up to 45.1%, fol owed by that at upper nodes, 30.1%, and the capsule setting rate at lower nodes was the smal est, only 25.0%. The capsule length, width, fresh weight, seed fresh weight, dry weight and capsule shel dry weight at middle part were higher than that at lower and upper part. Moreover, grain fil ing rates of the lower, middle and upper capsules were 0.003 5, 0.004 4 and 0.003 0 g/(capsule·d). It suggests that the substances gave priority to supply the middle capsules during the development of capsules. [Conclusion] This study wil provide theoretical basis for the cultivation of high-yielding sesame.