CAJ | 학술논문

对热带植物小芸木的种子和胚在整个发育阶段的形态学特征、含水量、萌发率和电导率进行了研究.结果显示:(1)小芸木种子在发育过程中形态学特征、电导率、萌发率和胚的脱水耐性有明显的变化;(2)在55～80 d种子鲜重和干重逐渐增加,随后又稍微降低,整个发育过程未经历明显的成熟脱水阶段;种子萌发率从55～85 d逐渐达到最大,随后又稍微降低;(3)胚的脱水耐性从55～90 d逐渐增加,于85～90 d达到最大,在95～103 d时又有所下降.表明小芸木胚的最大脱水耐性的获得时间与种子干物质积累达到最大的时间一致.
대열대식물소예목적충자화배재정개발육계단적형태학특정、함수량、맹발솔화전도솔진행료연구.결과현시:(1)소예목충자재발육과정중형태학특정、전도솔、맹발솔화배적탈수내성유명현적변화;(2)재55～80 d충자선중화간중축점증가,수후우초미강저,정개발육과정미경력명현적성숙탈수계단;충자맹발솔종55～85 d축점체도최대,수후우초미강저;(3)배적탈수내성종55～90 d축점증가,우85～90 d체도최대,재95～103 d시우유소하강.표명소예목배적최대탈수내성적획득시간여충자간물질적루체도최대적시간일치.
This paper describes research results on some morphological properties, moisture content, germinability,leakage rate of electrolyte and desiccation tolerance of Micromelum integerrimum Roem. seeds at various developmental stages. It showed that throughout the course of development M. integerrimum seeds experienced significant changes in morphological characteristics, leachate conductivity, germinability and desiccation-tolerance. Between 55 to 80 days after flowering (DAF),both fresh and dry weight of seeds increased gradually. Seed germinability gradually reached up to a maximum from 55 to 85 d, but decreased somewhat thereafter. During 55 to 90 d,embryos desiccation tolerance increased and reached a maximum at 85 ～90 d, but decreased at 95 ～ 103 d. It didn' t experienced obviously maturation dehydration. The acquisition of the maximum desiccation tolerance of embryos takes place on 90 d which conform to the maximum dry matter accumulation.