Pemanfaatan Trichoderma harzianum dan biochar untuk mengatasi cekaman kekeringan pada kedelai fase reproduktif

Benang - Purwanto, I. Indrawati, S. Sumadi, Anne Nuraini, Mieke Rochimi Setiawati
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Abstract

Pemanfaatan Trichoderma harzianum dan biochar sekam padi diharapkan mampu mengurangi dampak negatif cekaman kekeringan pada tanaman kedelai fase reproduktif. Tujuan penelitian ini untuk mengetahui interaksi aplikasi Trichoderma harzianum dan biochar sekam padi terhadap fisiologis dan hasil kedelai tercekam kekeringan selama fase reproduktif pembentukan polong (R3) sampai perkembangan biji (R6). Penelitian ini menggunakan rancangan split-split plot. Petak utama adalah cekaman air (75%, 50% dan 25% dari kapasitas lapang. Anak petak yaitu aplikasi Trichoderma harzianum (tanpa aplikasi Trichoderma harzianum dan dengan aplikasi Trichoderma harzianum dosis 50 g kg-1 benih kedelai), sedangkan anak-anak petak yaitu dosis biochar sekam padi (0, 5, dan 10 t ha-1). Hasil penelitian menunjukkan bahwa interaksi aplikasi Trichoderma harzianum 50 g kg-1 benih kedelai dan  biochar  sekam  padi dosis 10 t ha-1 secara fisiologis mampu meningkatkan kadar air relatif (KAR) daun, konduktansi stomata, sedangkan penurunan kadar prolin lebih dipengaruhi oleh adanya penambahan biochar dosis 5 dan 10 t ha-1.ABSTRACTThe use of Trichoderma harzianum and rice husk biochar is expected to reduce the negative effects of drought stress on soybean plants in the reproductive phase. The purpose of this study was to determine the interaction of the application of Trichoderma harzianum and rice husk biochar on the physiology and yield of drought-stressed soybeans during the reproductive phase of pod formation (R3) to seed development (R6). This study uses a split-split plot design. The main plots were water stress (75%, 50%, and 25% of field capacity. The subplots were the application of Trichoderma harzianum (without the application of Trichoderma harzianum and the application of Trichoderma harzianum at a dose of 50 g kg-1 soybean seeds), while the subplots were rice husk biochar doses (0, 5, and 10 t ha-1). The results showed that the interaction of the application of Trichoderma harzianum 50 g kg-1 soybean seeds and rice husk biochar dose 10 t ha-1was physiologically able to increase the relative water content (RWC) leaves, stomatal conductance, while the decrease in proline levels was more influenced by the addition of biochar doses of 5 and 10 t ha-1.
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哈兹南芽孢杆菌和生物化学对大豆生殖阶段干旱的利用
甘油三酯和生物炭糠的利用预计将减少干旱对大豆生殖阶段的负面影响。本研究的目的是确定种子在再生阶段(R3)到种子(R6)形成过程中淀粉质和大豆在生理学上的相互作用。这项研究采用分布式平面图。主要的网格是水切(占总容量的75%、50%和25%)。色子是姜黄甘菊(没有杜乔马扎南应用,也没有杜乔马扎南应用,剂量为50克kg1大豆),而色子是指稻谷的生物炭质(0、5和10 t -1)。研究结果表明,Trichoderma harzianum应用50 g g g-1大豆和生物char谷糠10 t -1可以在生理上提高叶脉的相对含水量(KAR)、眼导传导,而prolin的下降更多地受到5和10 t -1剂量的生物化学加法的影响。harzianum和rice husk生物char的使用预计将减少生长阶段大豆植物产生的负面影响。这项研究的目的是确定哈兹亚南姆和赖斯海斯克生物测定在种子发展的再生成阶段(R3)中对种子发展的影响。这个研究表明是一个分裂的情节设计。主要的情节是水压力(75%、50%和25%的外地电路局。这些分支是harzianum的应用(没有一种对Trichoderma harzianum的应用和一种对Trichoderma harzianum的应用)的应用,而一种是赖斯husk生物char doses(0、5和10 t -1)。应用程序》《interaction of The results那里那个Trichoderma kg-1 harzianum 50克大豆种子和赖斯husk biochar剂量10 t ha-1was physiologically able to增加亲戚水上内容(RWC)树叶,stomatal conductance,而《proline decrease水平是更多influenced by biochar之加法,5年和10年t ha-1之剂。。
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