The onset of the apyrene spermatogenesis started in the 4th instar larva or before, while the euprene spermiogenesis occurred in the adult.
结果表明,小菜蛾精巢主要在末龄幼虫期的4龄发育,4龄当天即开始出现成熟的精子,幼虫期主要生成无核精子,有核精子主要在成虫期形成。
The seedless fruit and high effectiveness cultivation techniques for Jingya grape;
京亚葡萄无核高效栽培技术
The Effect of GA_3 and GA_(4+7) treatment on inducing seedless and Berry Growth of Kyoho Grape;
GA_3与GA_(4+7)对诱导巨峰葡萄产生无核及果实发育的影响
Early-ripening Seedless Grape Jingzaojing ;
早熟优质无核葡萄新品种‘京早晶’
This may be the major cause for the seedlessness of these lines,which have relatively high value for further selection and exploitation.
对芽变选育的9个红江橙无核(少核)选系的花粉母细胞(PMC)减数分裂行为观察的结果表明,K东1,E西2,E西1,D中1,Q北1,K东2,H西1等7个选系存在较高频率的PMC减数分裂中染色体异常配对和异常分离并进而导致花粉败育,这是导致它们无核(少核)的主要原因,因而具有较高的选育价值和利用价值。
Seedlessness is an important economic trait of citrus.
综述了国内无核柑桔类型选育研究进展。
Seedless grapes have high commercial value and seedlessness for table grapes and raisins is one of the principle objectives of Vitis vinifera grape breeders.
无核葡萄具有重要的商业价值，葡萄无核育种已成为当今葡萄育种的重要方向。
[HT3XBS]Effects of different fruit-retaining reagents upon fruiting on Yunan seedless wampee(Clausena lansium Skeels);
不同类型保果剂对郁南无核黄皮的保果试验初报
To probe into the seedless reason of fruit of the Linyuan 1 seedless wampee,the Linyuan 1 seedless wampee is observed at its flower organs, pollen quantity and degree of satiation, and germination, and compared with the seed wampee.
为了探讨林院 1号无核黄皮果实无籽的原因 ,于 1992年～ 2 0 0 0年在广西大学林学院观察林院 1号无核黄皮的花器、花粉数量及饱满程度、花粉萌发情况 ,并和有核黄皮比较 ;采用随机区组试验设计 ,对林院 1号进行自然授粉、去雄不授粉套袋、去雄后用有核黄皮花粉授粉并套袋的授粉试验 ;观察林院 1号的授粉受精过程。
The cloning and sequencing of two specific molecular markers linked to grape(Vitis vinifera) seedlessness gene indicated the full lengths of 564 and 1538 bp for marker 39970524-5-564(GenBank accession number:AY327513) and marker 39970524-6-1538(GenBank accession number: AY327514), respectively.
对葡萄(Vitis vinifera)无核基因特异标记39970524-5-564和39970524-6-1538的DNA序列进行了克隆和测序,其序列全长分别为564和1538bp,GenBank登录号为AY327513和AY327514。
Effects of mediums at different ratio on the rooting of seedless grapevine(Vitis vinifera L.) cuttings;
不同基质配比对几种无核葡萄扦插生根的影响
Preliminary report on endogenous hormone in young fruit of Crimson Seedless and Fantasy Seedless grapes;
克瑞森无核与奇妙无核葡萄幼果的内源激素研究初报
Cytological study of embryo development and abortion in hybrid progeny of seedless grape and Chinese wild grapes;
无核葡萄与中国野生葡萄杂种胚发育和败育的细胞学研究