發(fā)布時間：2018-05-01 10:16

  本文選題：芝麻 + 漬水��； 參考：《西南農(nóng)業(yè)學報》2017年05期

【摘要】：【目的】為研究不同生育期漬害脅迫對不同耐濕性芝麻品種生長發(fā)育的影響�！痉椒ā吭谂柙栽囼灄l件下,以鄭芝13和鄭98N09為研究對象,研究了初花期和盛花期不同漬水時長對芝麻農(nóng)藝性狀,干物質(zhì)積累及產(chǎn)量構(gòu)成的影響�！窘Y(jié)果】(1)漬害延緩芝麻生長發(fā)育,使芝麻葉齡,葉面積指數(shù)和葉綠素含量降低,品種間差異顯著,漬水時間越長,影響越大。(2)漬害抑制芝麻植株干物質(zhì)的積累,使干物質(zhì)向莖桿中轉(zhuǎn)運比例增大,減少了向生殖器官的轉(zhuǎn)運,容易形成秕籽,降低產(chǎn)量。(3)同一時期漬水時間越長,對芝麻產(chǎn)量構(gòu)成的影響越大。漬水處理后,產(chǎn)量的降低主要是因為單株蒴數(shù)的降低引起的。不耐濕型品種鄭芝13的受漬害影響程度均大于耐濕型品種鄭98N09�！窘Y(jié)論】漬害影響芝麻的正常生長發(fā)育,漬害時間越長,影響越大,耐漬性品種較普通品種在遭受漬害時生長更好。
[Abstract]:[objective] to study the effects of waterlogging stress at different growth stages on the growth and development of different water-tolerant sesame varieties. [methods] in pot experiment, Zhengzhi 13 and Zheng 98N09 were used as research objects. The effects of different waterlogging periods on agronomic characters, dry matter accumulation and yield composition of sesame seeds were studied. [results] 1) the growth and development of sesame seeds were delayed by waterlogging, and the leaf age, leaf area index and chlorophyll content of sesame seeds were decreased. There were significant differences among varieties, the longer the waterlogging time, the greater the effect of waterlogging. 2) the dry matter accumulation of sesame plants was inhibited by waterlogging injury, the proportion of dry matter transported to stem was increased, the transportation to reproductive organs was reduced, and chaff seeds were easily formed. The longer the waterlogging time is, the greater the effect of waterlogging on the yield composition of sesame seeds is. After waterlogging treatment, the decrease of yield was mainly caused by the decrease of the number of capsule per plant. The intolerant variety Zheng Zhi 13 was more affected by waterlogging than the wet tolerant variety Zheng 98N09.Conclusion the waterlogging injury affects the normal growth and development of sesame seeds, and the longer the duration of soaking injury, the greater the effect. The resistant variety grew better than the common variety when it was damaged by waterlogging.
【作者單位】： 河南省農(nóng)業(yè)科學院農(nóng)業(yè)經(jīng)濟與信息研究所;河南省智慧農(nóng)業(yè)工程技術研究中心;
【基金】：國家自然科學基金青年基金(31301239)
【分類號】：S42;S565.3

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