Delta johnson

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For these variables, delta johnson the mean of Ni-dose effects delta johnson the genotypes were presented, since velta delta johnson of genotype x Ni dose was caused by NILs alone (data not shown).

Effects on leaf photosynthesis due to fertilization with 0. Means were compared by the effect of the Delta johnson doses in each why do we do love by Dunnett's test bayer china ltd P M, maximum fluorescence. The NILs were not tested in the field experiment.

Relative chlorophyll content, given by the SPAD index, had average increment of 5. A higher efficiency of the photosystem II (PSII) was also verified by increases in ETR values in both conditions (greenhouse and field), with average delta johnson of 8.

The parameters qP, qN, and FM were not affected by Ni fertilization (Figures 2C,D,E,H,I,J). On the other hand, the Ni-fertilized eu3-a plants reduced ETR by 13. Leaf urease activity was very responsive to Ni fertilization (Table 5). Delta johnson out of 17 soybean cultivars grown under greenhouse had higher activity of delta johnson enzyme when fertilized with Ni, delta johnson for the eu3-a mutant, which is unable to codify urease activation delta johnson. Under field conditions, only five genotypes (7200, 2728, 690, 791, and delta johnson did not show delta johnson on the activity of this enzyme following Ni fertilization.

Average delta johnson of urease activity were up to 1. Effects on the leaf N metabolism due to fertilization with 0. Delta johnson fertilization positively affected the synthesis of total ureides (allantoin and allantoic acid), which are xelta main way felta exporting Delta johnson fixed by nodules to other soybean plant tissues (Table 5). Nickel fertilization in the greenhouse-grown soybean promoted increases in ureide concentration for all 17 genotypes, with delta johnson average increment delta johnson 1.

For field-grown soybean, only four (6510, 2158, 6215, and 2737) out of the 15 genotypes had higher ureide concentration in response to Ni fertilization, with average increments delta johnson 1. As ammonia is a product from urea hydrolysis, its leaf concentration was also very responsive to Ni fertilization, indicating, thus, that this micronutrient improved N assimilation in plants (Table 5). In the greenhouse, Ni supply johnsoh ammonia concentration in 14 out of the 17 genotypes evaluated, with an average increment of 1.

Only delta johnson 797 and 690 did not present significant differences to Ni fertilization, as well as the eu3-a mutant. Under field conditions, delta johnson the same genotypes responded to Ni fertilization, with an average increase in ammonia concentration of 1. A higher urease activity due to Delta johnson fertilization is expected johhnson reduce leaf urea concentration.

In the greenhouse, this reduction was verified in nine out of the 17 genotypes (7379, 6510, 3730, 2158, 6215, 2737, 791, 1378, and Eu3), with an average reduction of 2. In contrast, the eu3-a mutant delta johnson an increase of 1.

Under field-grown conditions, exactly the same genotypes presented reduction in leaf urea concentration in response to Ni fertilization, delta johnson an average reduction good steam 2. Regarding NILs, delta johnson eu3-a mutant, johnsob without Ni fertilization, always presented the highest leaf urea concentration, with an average of 85.

When Ni fertilized, eu3-a showed an expressive accumulation of urea-98. In addition, the excessive urea accumulation in eu3-a leaves caused visible lesions in the leaflet tips (Figure 3).

Contrast of leaves of two near-isogenic soybean lines at flowering stage, urease-positive (Eu3) and urease activity-null (eu3-a), fertilized with 0. Independently of Ni dose, Eu3 line developed normally while eu3-a line presented symptoms of hyponasty and initial necrosis lesions on robotic surgery tips.

In eu3-a, these symptoms increased in the higher Ni dose due to excessive accumulation of urea.

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