Effect, directive seeding

Brye KR, Rogers CW, Smartt AD, Norman RJ. Soil texture effects on methane emissions from direct-seeded, delayed-flood rice production in Arkansas. Soil Sci. 2013 178 519-529. 

GraysonBT, Webb JD, Factors offecting the performance and crop phytotoxicity of a new rice herbicide, cinmethylin. 1. Effects of water depth and soil type on the distribution and uptake of anmethylin by transplanted and direct-seeded rice,... 

Effect of Seed Density. Figure 3 shows the results obtained for batch nucleation runs at 70 C for various seed densities. The seeds used were taken directly from alumina trihydrate bags supplied by Alcoa of Australia Ltd. 

The ideal seeded experiment would be where seed latex particles are prepered in which the MWD of the seed is significantly different from that formed during subsequent seeded polym tzation. The instantaneous MWD formed at early times could then be estimated directly. Seed latexes of different sizes could be used to probe the effect of compartmentalization we Stress again that if the system is transfer-dominated, the MWD of formed polymer should be independent of panicle size). 

Samui, R. C., and Dasgupta, S. K. (1982). Effect of soil and foliar application of zinc, boron and molybdenum on direct seeded rice, transplanted rice and berseem grown in sequence. Indian J. Agron. 27 35-40. 

The potential of SAXS for a precise analysis of the radial structure of latexes can be discussed best when considering model particles consisting of a well-defined core and a closed shell of a second polymer. The particles analyzed by SAXS [45-49] have been prepared recently [45] by a seeded emulsion polymerization [97] of PMMA onto a polystyrene core having a narrow size distribution. The alteration effected by seeded emulsion polymerization can be seen directly in the analysis of the size distribution by ultracentrifugation [87], the resulting distributions are shown in Fig. 17. Besides the increase in radius when going from the... 

Plant-derived lignans have no direct estrogen activity, but gut bacteria transform some of them to compounds with hormone-mimicking effects. Flax seeds arrd whole grain cereals contain significant amounts of such lignans. 

Figure 4.1.2 is a photograph of a coimterflow burner assembly. The experimental particle paths in this cold, nonreacting, counterflow stagnation flow can be visualized by the illumination of a laser sheet. The flow is seeded by submicron droplets of a silicone fluid (poly-dimethylsiloxane) with a viscosity of 50 centistokes and density of 970 kg/m, produced by a nebulizer. The well-defined stagnation-point flow is quite evident. A direct photograph of the coimterflow, premixed, twin flames established in this burner system is shown in Figure 4.1.3. It can be observed that despite the edge effects.

It seems most likely that the presence of the styrene compound was at least partially responsible for the inhibition of prickly sida germination and root length, since ferulic acid alone (prickly sida seed without carpels plus ferulic acid) had no effect on prickly sida germination or root length (Table XI). The decarboxylation of phenolic acids to corresponding styrenes is known from studies on fungi and bacteria (60, 61). However, in a number of studies directly concerned with the microbial decomposition of ferulic acid, as well as other phenolic acids, no mention is made of any styrene compounds produced as a result of phenolic acid decarboxylation (62, 63, 64, 65). 

A (3 fibril formation an identifiable nucleating species has yet be isolated. Direct observation has been made difficult by the small size of the (3 peptide, which has an effective hydrodynamic radius of 4 nm [98-100], and by the apparent low abundance of nucleating species due to the low probability of their formation. Such species would be formally akin to an enzyme transition state that is usually kinetically inferred or sometimes trapped with certain kinds of inhibitor. In disaggregated, ultrafiltered (20 nm pore size) preparations, less than 1% of the molar peptide concentration is inferred to be present as seeds or nuclei determined by the kinetics of fibril formation [101]. 

The quality of the mean-field approximation can be tested in simulations of the same lattice model [13]. Ideally, direct free-energy calculations of the liquid and solid phases would allow us to locate the point where the two phases coexist. However, in the present studies we followed a less accurate, but simpler approach we observed the onset of freezing in a simulation where the system was slowly cooled. To diminish the effect of supercooling at the freezing point, we introduced a terraced substrate into the system to act as a crystallization seed [14]. We verified that this seed had little effect on the phase coexistence temperature. For details, see Sect. A.3. At freezing, we have... 

A seed dressing method based on electrons was developed and tested by Lindner et al. (1996) and Schauder (2003) as a direct method to improve seed quality and remove/reduce seedborne disease inocula. Electron seed dressing effectively removed common bunt spores (Tilletia caries) and reduced bunt levels compared to untreated seeds in field trials. However, its efficacy against M. nivale has not, as yet, been confirmed. Since this technique has potentially negative effects on germination rates of seed, it is limited to surface treatments (Jahn, 2002 Jahn et al., 2005). 

The simplest way to grow the vast majority of vegetables is from seed sown outdoors where the plants are to crop. Although you can raise young plants under cover (see p.260) for a head start, sowing directly into the soil is guick, easy and effective, and there are various techniques you can use to make best use of space. 

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