核型胚乳

核型胚乳，合点端具胚乳吸器。

Endosperm formation is nuclear type and the endosperm forms chalazal haustorium .

6月下旬核型胚乳细胞化，心形胚发育为鱼雷胚。

Heart stage embryo developed into torpedo stage , and meanwhile nuclear endosperm formed cellwalls in later June .

胚发育时，核型胚乳被胚全部吸收而成为无胚乳种子。

When embryo was developing , the nuclear endosperm was absorbed by embryo and then formed the non-endosperm seed .

在胚的发育过程中，胚乳起主要营养作用，胚乳发育类型为核型胚乳。

At the same time , endosperm plays a main advancing role in the embryonal development , which is nuclear type .

胚乳为核型胚乳。胚囊合点端胚乳保持游离核状态，成为胚乳舍点吸器。

The endosperm is of the Nuclear type , without cellularization the chalazal region of endosperm remains free nuclear and becomes a chalazal haustorium .

‘大五星’枇杷的胚胎发育解剖观察表明：（1）‘大五星’枇杷胚珠为倒生胚珠，蓼型胚囊和核型胚乳。

Embryo development of ' Dawuxing ' Results of anatomical structure of ' Dawuxing ' showed that ( 1 ) The ovules belongs to anatropous ovule , polygonum type embryo-sac , nuclear endosperm in ' Dawuxing ' .

去种皮种子的种子萌发和初生吸器形成为露白突起（圆锥状）芽管（细长）芽管增粗基部膨大顶端变细的过程。核型胚乳，胚乳发育中后期胚囊合点端存在胚乳吸器；

The process of decorticated seeds germination and haustorium formation is as follws : sprouting protuberance ( tapered shape ) formation of germ tube ( slightness ) germ tube growing widely intumescence in proximal end attenuation in acropetal end .

授粉后2天，可以观察到残留的花粉管；胚的发育过程与大多数双子叶植物相似；胚乳属于核型胚乳，有胚乳吸器，随着胚的发育，胚乳逐渐被吸收。

The pollen tubes can be observed after 2 days . The development of embryo was similar to most dicotyledons ; endosperm was nuclear-type endosperm , and has endosperm haustoria . With the development of embryo , the endosperm was gradually absorbed .

水稻、小麦、大麦的胚乳发育均属核型，核型胚乳的发育分为核期和细胞期两个时期，胚乳游离核的分裂处于细胞发育的核期阶段。

Structure and division process of free nuclei of endosperm of rice , wheat and barley were observed by the methods of total dissection and resin-embedding sections .

胚乳发育属核型，初生胚乳核常常晚于合子分裂，胚乳核的分裂速度慢于胚体细胞的分裂速度。

The development of endosperm was of Nuclear type . The primary endosperm nucleus division was often posterior to zygote , and its division speed was also slower than that of embryo cells .

胚乳发育为核型，珠孔端胚乳细胞化，合点端保持游离核状态。

The endosperm development follows the nuclear type . The endosperm cells form at the micropylar end , and remain free nuclear phase at chalazal end .