Characterization of rhizobacteri having potential to control Xanthomonas oryzae pv.  oryzae and increase plant growth of rice. Rhizobacteria which are isolated from root could produce HCN, siderophore, and plant growth regulator,  induce systemic resistance, and are increase uptake of plant nutrition  such as phosphate.  The objective of this research was to characterize rhizobacteri  as controling agent for  Xanthomonas oryzae pv.oryzae (Xoo) and as plant growth promoter. The results show that the isolates of P. diminuta A6, P. aeruginosa A54, B.subtilis 11 /C, and B. subtilis  5/B  inhibited the growth of Xoo.  B. subtilis 5/B isolate produced the highest siderophore  activity, followed by of P. aeruginosa A54, P. diminuta A6 and B. subtilis 11/C. Only  P. diminuta A6 isolate  produced HCN. The results also showed that all  rhizobacteri  produced IAA i.e.  B.subtilis 5/B (22.10 µg/ml), B. subtilis 11/C (19.05 µg/ml), P. diminuta A6 (8.68 ug/ml), and  P. aeruginosa A54 (2.95 µg/ml). The content of phosphatase enzyme was as folows B.subtilis 5/B (2.78 units/ ml), B.subtilis 11/C (5.7 units/ml), P. diminuta A6 (2.25 units/ml), and P. aeruginosa A54 (5.71 units / ml). Content of peroxidase enzymes in plants that were treated by using isolates was as follows B.subtilis 5/B (1.30 x 10-3 units/mg protein), P. aeruginosa A6 (1.20 x 10-3 units/mg protein), B.subtilis 11/C (1.15 x 10-3 units/mg protein), and P. aeruginosa A54 (1.05 x 10-3 units/mg protein).

The availability of good physical quality and high seed vigor is expected to occur with good handling of storage. The purpose of this study was to determine the effect of two storage periods [10 months (p1)

This study was aimed to determine the effect of the increasing silica and boron concentration and their interaction on plant growth and soybean yield. This research was conducted from April-September 2017 in the integrated field of the experiment at the University Lampung. The treatments were 0 and 5 ppm Boron (B) fertilizer and Silica (Si) concentrations in 6 levels (0, 25, 50, 75, and 100 ppm). The difference between the means of B were calculated by using Orthogonal Contrast and response of Si was used Polynomial at a 0.05. The results showed that application of 5 ppm of B foliarly produced higher of soybean growth and production than without B treatment through variables of the dry weight and grain weight. Application of up to 125 ppm of Si foliarly was improved of soybean growth and production through variables of plant height, number of leaf, leaf area, dry weight and number of productive branch, number of pods, filled pod, and grain weight, but it didn’t affect the percentage of empty pods. The response of soybean growth and production to the increasing Si didn’t depend on the foliar B which was showed in all variables.

The important part of cassava root is starch which is probably controlled by starch synthase type IV (SSIV) gene. The information of micro nutrient and harvest age related to the activity starch synthase type IV (SSIV) gene is still very rare. The objectives of this study were to evaluate root fresh weight of cassava, to compare yield of storage root, and to evaluate the activity of starch synthase type IV (SSIV) gene by real-time quantitative polymerase chain reaction (RT-PCR) applied by micro nutrient fertilizer. Treatments were arranged by factorial (3 × 3) in randomized complete block design (RCBD) with three replications used as block. The first factor was three different dosages of micro nutrient fertilizer as 0, 20, and 40 kg/ha. The second factor was harvest ages as 7, 8, and 10 months after planting (MAP). The micro nutrient fertilizer mainly contents of 5,888 ppm Fe and 1,368 ppm Zn. Variables were leaf number (LN), leaf fresh weight (LFW), leaf dry weight (LDW), stem fresh weight (SFW), stem dry weight (SDW), root fresh weight (RFW), root dry weight (RDW), skin root fresh weight (SRFW), skin root dry weight (SRDW), starch content, and activity of SSIV gene. The result showed that RDW of cassava applied by 40 kg micro nutrient/ha was significantly increased at 10 MAP. The increase in RDW was due to mainly high SSIV gene activity. Additionally, the SSIV gene activity caused by 20 kg micro nutrient/ha treatment showed almost as twice as those by 40 kg micro nutrient/ha. Keywords: Real-time PCR, Root dry weight, Root yield, Starch, Stem dry weight

Universities have three complementary missions, namely research, teaching, and community services. The Lampung University community services has responsibilities to the surround communities with being active roles in educating people, doing the strategic plans of the university, implementing and disseminating various university research results. Sekincau is a region in West Lampung with a great potential for horticulture productions, however, until recently, Lampung depends on West Java for supplying of horticulture productions. Some community programs had been done consistently in this area by Agronomy faculties of Lampung University with the local agriculture extension and farmers groups. The activities included introducing and developing good quality seeds of potato and baby beans seeds until certified for progeny of basic seed, intercropping of sorghum and baby beans, introducing internet applications useful for farmers and built a start-up particularly for young farmers. The method was “training and visit” which for regions where the level of development is still very low, instructing farmers what to do was probably more appropriate. This paper evaluated university roles in disseminating innovation to farmers. In general, it can be concluded that community development and services would only effective if continually conducted by the same group and focused on certain chosen area.