scholarly journals Optimizing nitrogen supply promotes biomass, physiological characteristics and yield components of soybean (Glycine max L. Merr.)

Author(s):  
Muhammad Saleem Kubar ◽  
Akhtar Hussain Shar ◽  
Kashif Ali Kubar ◽  
Nadir Ali Rind ◽  
Hidayat Ullah ◽  
...  
2018 ◽  
Vol 16 (3) ◽  
pp. 386-395
Author(s):  
Md. Matiul Islam ◽  
Seijun Sakamoto ◽  
Shao -Hui Zheng

Pods start growing almost at the same time and mature simultaneously in soybean (Glycine max (L.) Merrill) plants. But mungbean (Vigna radiata L. Wilczek) and cowpea (Vigna sinensis Endl.) perform unsynchronized pod maturity. To overcome unsynchronized pod maturity the nitrogen redistribution aspects of mungbean and cowpea were investigated based on the linkage of soybean. Pot experiment was conducted using a nodulating mungbean variety (cv. XANH NINH THUAN) in 2015 and cowpea variety (cv. IT98K-205-8) in 2016 in the vinyl house at Saga University in Japan. During the experiment, nutrient solution was applied by changing nitrogen concentrations to 5, 25 and 100 ppm (control). Mungbean plants provided with low concentration of 5 and 25 ppm of nitrogen supply was not capable to produce continuous pods. Cowpea plants supplied with low concentration of nitrogen was also unable to produce successful pods continuously. Insufficient nitrogen hampered the continuation of pod setting in both the cases, might be due to, all the vegetative stored nitrogen had been utilized for seed development during the vegetative phase before pod setting. In case of 100 ppm nitrogen supply, for both mungbean and cowpea, no senescence and nitrogen remobilization occurred. However, researches showed that soybean typically undergoes the remobilization evidence, i.e., monocarpic senescence, in 100 ppm of nitrogen supply. J.Bangladesh Agril. Univ. 16(3): 386–395, December 2018


Author(s):  
Nurul Aini ◽  
Syekhfani Syekhfani ◽  
Wiwin Sumiya Dwi Yamika ◽  
Runik Dyah P. ◽  
Adi Setiawan

Jurnal BIOMA ◽  
2014 ◽  
Vol 10 (2) ◽  
pp. 41 ◽  
Author(s):  
Priskilla Purnaning Putri ◽  
Adisyahputra Adisyahputra ◽  
Asadi Asadi

Abstract Soybean (Glycine max L.) is annual crop that have high morphologies and yield components diversity. The research was conducted at the first season of 2011, the objective of the research were to find morphological, yield, and yield component of Soybean germplasm (Glicine max L.). The research was carried out at experimental station BB-BIOGEN Citayam, Depok, and laboratory of Gene Bank BB-BIOGEN. The experiment used randomized block design with 100 different accessions and three replications for each accession. Based on the observation, the morphological characters have many visual forms. They are as follows: growth percentage in which 19.33 – 99%; growth types were determinate and indeterminate, the leave form was triangle to sharp; purple and white flowers; yellow and black seeds color. The range of values for each characteristic component are as follows: plant height 29,23 – 104,25 cm; number of pods per plant was 23,6 – 99,82; flowering time 33 – 47 days after planting; 100 seed weight 5,98 – 20,77 gram; maturing time 75 – 96,67 days after planting; root nodule’s weight 0,004 – 0,109 gram; seed’s weight 3,15 – 11,45 gram/plant. Among the accessions, the highest yield was shown by B 4323 (643,27 gram/3,6 m2). Significant correlation was shown between soybean’s yield components and yield which were plant’s height, growth percentage, numbers of main stem’s node, numbers of pods, seeds weight for each plant and root nodule’s weight. 100 seeds weight showed significant negative correlation with soybean components.   Key words: germplasm, morphological characteristics, soybean, yield components


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