Dissertations / Theses on the topic 'Varietal trials'

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1

Connolly, Thomas. "Competition in variety trials." Thesis, Heriot-Watt University, 1992. http://hdl.handle.net/10399/1476.

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2

Oebker, N. F., and Marvin Butler. "Yuma Cauliflower Variety Trials." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/214144.

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3

Butler, M. D., N. F. Oebker, and J. A. Davis. "1987 Broccoli Variety Trials." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/214152.

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4

Butler, M. D., N. F. Oebker, and J. A. Davis. "1987 Cauliflower Variety Trials." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/214153.

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5

Butler, Marvin, and Keith Mayberry. "Cantaloupe Variety Trials, 1989." College of Agriculture, University of Arizona (Tucson, AZ), 1990. http://hdl.handle.net/10150/214471.

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6

Wilcox, Mark. "Cantaloupe Variety Trials 1996." College of Agriculture, University of Arizona (Tucson, AZ), 1996. http://hdl.handle.net/10150/214723.

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7

Ainsley, Anne Elizabeth. "Interplot correlations in variety trials." Thesis, University of Edinburgh, 1985. http://hdl.handle.net/1842/13828.

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8

Butler, Marvin, and Norm Oebker. "Broccoli Variety Trials, 1988/1989." College of Agriculture, University of Arizona (Tucson, AZ), 1990. http://hdl.handle.net/10150/214470.

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9

Butler, Marvin, and Norm Oebker. "Cauliflower Variety Trials, 1988/1989." College of Agriculture, University of Arizona (Tucson, AZ), 1990. http://hdl.handle.net/10150/214472.

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10

Butler, Marvin. "Broccoli Variety Trials 1990/1991." College of Agriculture, University of Arizona (Tucson, AZ), 1992. http://hdl.handle.net/10150/214484.

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11

Butler, Marvin. "Cauliflower Variety Trials 1990/1991." College of Agriculture, University of Arizona (Tucson, AZ), 1992. http://hdl.handle.net/10150/214487.

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12

Wilcox, Mark. "Broccoli Variety Trials 1995/96." College of Agriculture, University of Arizona (Tucson, AZ), 1996. http://hdl.handle.net/10150/214722.

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13

Wilcox, Mark. "Cauliflower Variety Trials 1995/96." College of Agriculture, University of Arizona (Tucson, AZ), 1996. http://hdl.handle.net/10150/214724.

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14

Wilcox, Mark. "Cabbage Variety Trials 1995/96." College of Agriculture, University of Arizona (Tucson, AZ), 1996. http://hdl.handle.net/10150/214732.

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15

Brown, Mike, Mike Lunt, Edith DeRosa, and Lee J. Clark. "Cotton Variety Trials, Greenlee County." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/219744.

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16

Butler, M. D., and N. F. Oebker. "Pepper Variety Trials, Yuma 1986." College of Agriculture, University of Arizona (Tucson, AZ), 1987. http://hdl.handle.net/10150/221238.

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17

Butler, Marvin. "Cauliflower Variety Trials, 1989/1990." College of Agriculture, University of Arizona (Tucson, AZ), 1991. http://hdl.handle.net/10150/221407.

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18

Butler, Marvin. "Broccoli Variety Trials, 1989/1990." College of Agriculture, University of Arizona (Tucson, AZ), 1991. http://hdl.handle.net/10150/221434.

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19

Wilson, Mark. "Broccoli Variety Trials 1994/1995." College of Agriculture, University of Arizona (Tucson, AZ), 1995. http://hdl.handle.net/10150/221445.

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20

Wilcox, Mark, and Jim Cuming. "Cauliflower Variety Trials 1994/1995." College of Agriculture, University of Arizona (Tucson, AZ), 1995. http://hdl.handle.net/10150/221446.

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21

Wilcox, Mark. "Cabbage Variety Trials 1994/1995." College of Agriculture, University of Arizona (Tucson, AZ), 1995. http://hdl.handle.net/10150/221459.

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22

Clark, L. J., R. Walser, and E. W. Carpenter. "Lettuce Variety Trial." College of Agriculture, University of Arizona (Tucson, AZ), 2000. http://hdl.handle.net/10150/220344.

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Eleven head lettuce varieties and four leaf lettuce varieties were grown in a replicated small plot trial on the Safford Agricultural Center in 1998. Desertgreen variety of head lettuce from Harris Moran produced a crop with the best head weight, size and firmness rating. Premiere variety followed closely behind. Of the leaf lettuce varieties tested, Saguaro Romaine produced the best quality and quantity product. Per acre yields are calculated for each variety in the study.
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23

Clark, L. J., R. Walser, and E. W. Carpenter. "Melon Variety Trial." College of Agriculture, University of Arizona (Tucson, AZ), 2000. http://hdl.handle.net/10150/220394.

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Seven cantaloupe varieties and two Honeydew melon varieties were grown in a replicated small plot trial on the Safford Agricultural Center in 1998. Varieties were picked regularly during the growing season. Yields are shown in tabular form to indicate how each variety performed during the season.
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24

Clark, L. J., R. Walser, and E. W. Carpenter. "Squash Variety Trial." College of Agriculture, University of Arizona (Tucson, AZ), 2000. http://hdl.handle.net/10150/220395.

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Five Zucchini varieties and four yellow crook/straight-necked squash were grown in a replicated small plot trial on the Safford Agricultural Center in 1998. Varieties were picked regularly during the growing season. Yields are shown in tabular form and also graphically to indicate how each variety performed throughout the season.
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25

Steve, Farrell, David K. Parsons, and Lee J. Clark. "1984 Field Corn Variety Trials, Bonita." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200477.

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26

Sullivan, Lawrence M., David K. Parsons, and Lee J. Clark. "1984 Field Corn Variety Trials, Bonita." College of Agriculture, University of Arizona (Tucson, AZ), 1985. http://hdl.handle.net/10150/200522.

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27

Clark, Lee J., and Edith DeRosa. "Cotton Variety Trials, Greenlee County, 1987." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/204552.

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Four short staple variety trials were harvested in Greenlee county in 1987, covering long season varieties, early maturing varieties, acala varieties and a regional variety trial which was duplicated in Cochise county. Germains GC 510 and Delta Pine 90 yielded equally with acala 1517-75 in the long season trial. Delta Pine 20 out-yielded acala 1517-SR1 in the trial of earlier maturing varieties. An experimental acala, B 510, out-yielded the other acalas in the trial, but required more time to produce the yield. Wider experience with this new acala and others in the trials will be necessary before recommendations can be made. The better yielding varieties produced more than two bales of lint this season.
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28

Butler, Marvin, Norm Oebker, and Jackson Davis. "Yuma Cauliflower Variety Trials, 1987-1988." College of Agriculture, University of Arizona (Tucson, AZ), 1989. http://hdl.handle.net/10150/214251.

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29

Butler, Marvin, Norm Oebker, and Jackson Davis. "Yuma Broccoli Variety Trials, 1987-1988." College of Agriculture, University of Arizona (Tucson, AZ), 1989. http://hdl.handle.net/10150/214269.

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30

Wilcox, Mark. "Crisphead Lettuce Variety Trials 1995/96." College of Agriculture, University of Arizona (Tucson, AZ), 1996. http://hdl.handle.net/10150/214725.

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31

Wilcox, Mark. "Crisphead Lettuce Variety Trials 1994/1995." College of Agriculture, University of Arizona (Tucson, AZ), 1995. http://hdl.handle.net/10150/221460.

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32

Wilcox, Mark. "Yuma Vegetable Variety Trials 1996/1997." College of Agriculture, University of Arizona (Tucson, AZ), 1997. http://hdl.handle.net/10150/221480.

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33

Kopec, David M., and Jeffrey J. Gilbert. "Overseeding Fairway Trials." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2001. http://hdl.handle.net/10150/216378.

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Fifty-one overseed entries were evaluated in 1997-1998 for turfgrass performance. New experimental accessions of perennial ryegrass were darker in color than most of the commercially available germplasm included in this test. Ryegrass germplasm had better turfgrass quality after April, than did mixtures of perennial ryegrass with Poa trivialis, which performed well in December, January and March. General appearance for total plot leaf texture was best generally among the Poa trivialis containing mixtures. Hybrid (or intermediate) ryegrasses (L. which are crosses between perennial X annual ryegrass, are generally closer to annual ryegrass in performance. There was a vast improvement in L. hybridum (Pick YNC) when compared to annual ryegrass alone for turf performance. Intermediate and annual ryegrasses did show signs of decline in June (more so than ryegrass or Poa trivialis blends), which was desirable from a transition standpoint.
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34

Butler, Marvin, and Norm Oebker. "Watermelon Variety Trial, 1989." College of Agriculture, University of Arizona (Tucson, AZ), 1990. http://hdl.handle.net/10150/214473.

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35

Butler, Marvin. "Cantaloupe Variety Trial, 1991." College of Agriculture, University of Arizona (Tucson, AZ), 1992. http://hdl.handle.net/10150/214488.

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36

Wilcox, Mark. "Cantaloupe Variety Trial, 1993." College of Agriculture, University of Arizona (Tucson, AZ), 1994. http://hdl.handle.net/10150/214709.

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37

Clark, L. J., E. W. Carpenter, R. A. Neff, and S. T. Martin. "Sweet Corn Variety Trial." College of Agriculture, University of Arizona (Tucson, AZ), 2000. http://hdl.handle.net/10150/220396.

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Sixteen sweet corn varieties were grown in replicated small plot trials with two dates of planting at the Safford Agricultural Center in 1999. Candy Corner ranked number one and two in the early and late dates of planting, respectively, and FMX 413 ranked number one in the later date of planting study. Both varieties produced over 2,500 dozen ears per acre. Sugar readings were made and tabulated for all varieties using a portable refractometer.
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38

Butler, Marvin, and Keith Mayberry. "Cantaloupe Variety Trial, 1990." College of Agriculture, University of Arizona (Tucson, AZ), 1991. http://hdl.handle.net/10150/221406.

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39

Butler, Marvin. "Watermelon Variety Trial, 1990." College of Agriculture, University of Arizona (Tucson, AZ), 1991. http://hdl.handle.net/10150/221408.

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40

Gogel, Beverley J. "Spatial analysis of multi-environment variety trials /." Title page, contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phg613.pdf.

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41

Clark, Lee J., E. W. Carpenter, and R. H. Walser. "Short Staple Variety Trials, Graham County, 1998." College of Agriculture, University of Arizona (Tucson, AZ), 1999. http://hdl.handle.net/10150/197245.

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Two replicated on-farm short staple variety trials were planted in 1998. Fifteen varieties were evaluated on both the Carpenter farm in Thatcher and the Colvin farm near Ft. Thomas. Several new varieties were planted in both studies, including 4 transgenic varieties: DP 90B, BXN 47, DP 90RR and Paymaster 1560BG, 2 varieties from Australia: FiberMax 989 and FiberMax 832, and seven other varieties seen for the first time. Two of the new varieties produced the highest yields; AgriPro 6101 and Phytogen 952 on the Carpenter and Colvin farms, respectively. Other agronomic data from the varieties and HVI values from the lint are also included in this report.
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42

J, Clark L., and E. W. Carpenter. "Short Staple Variety Trials, Graham County, 1999." College of Agriculture, University of Arizona (Tucson, AZ), 2000. http://hdl.handle.net/10150/197465.

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Two replicated on-farm short staple variety trials were planted in 1999. Twenty-two varieties were evaluated on the Claridge farm in Solomon and fifteen varieties on the Colvin farm near Ft. Thomas. Several new varieties were planted in these studies, including 2 transgenic varieties: DP 5690RR, BXN 16; 4 Israeli inter-specific hybrids and six other varieties seen for the first time. DP 35B was the highest yielding variety in the Claridge trial with BXN 47 a close second. Both varieties yielded over 1300 pounds of lint per acre. PM 1440 was the highest yielding variety in the Colvin trial with SG 747 and DP 5690RR following closely behind. These varieties yielded between 700 and 800 pounds of lint per acre. Other agronomic data from the varieties and HVI values from the lint are also included in this report.
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43

Clark, Lee. "Durum Wheat Variety Trials, Cochise County - 1986." College of Agriculture, University of Arizona (Tucson, AZ), 1986. http://hdl.handle.net/10150/200570.

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44

Clark, Lee J., and Mike Schneider. "Short Staple Variety Trials, Greenlee County, 1990." College of Agriculture, University of Arizona (Tucson, AZ), 1991. http://hdl.handle.net/10150/208340.

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Fourteen short staple varieties were evaluated in Greenlee county in 1990 in two separate trials. Average yields were higher in 1990 than in 1989 in both locations. The highest yielding variety in the acala trial was a new variety from California, C-37, with a yield of 1271 pounds of lint per acre. The highest yielding delta variety in the trials was DP 20 with a yield of 1116 pounds of lint per acre.
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45

Clark, Lee J., and Mike Schneider. "Short Staple Variety Trials, Greenlee County, 1991." College of Agriculture, University of Arizona (Tucson, AZ), 1992. http://hdl.handle.net/10150/208634.

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Fourteen acala and four delta varieties were tested in two separate field trials in Greenlee county in 1991. Yields at both sites were about 1000 pounds per acre (seed cotton yields) than the 1990 yields. Cool weather and wet grounds delayed planting one to two weeks compared with 1990. The highest yielding varieties, both acala and delta type, produced around 2300 pounds per acre of seed cotton. An experimental New Mexico acala, B510 and Stoneville 506 were the top varieties.
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46

Clark, L. J., and E. W. Carpenter. "Short Staple Variety Trials, Graham County, 2000." College of Agriculture, University of Arizona (Tucson, AZ), 2001. http://hdl.handle.net/10150/211293.

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One replicated on-farm short staple variety trial was planted in Graham County in 2000. Ten varieties were evaluated on the Larson farm in Thatcher. Several new varieties were planted in these studies, including 5 transgenic varieties, 3 varieties from Buttonwillow Research in California, and the newest acala from New Mexico. The Australian variety, FiberMax 989, produced the highest yield with 895 pounds of lint per acre. Paymaster 1560 BRR and DPL 655BRR followed close behind and were not separable statistically from the leader. Yield and other agronomic data are reported by variety along with HVI values from the lint.
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47

Kopec, David M., Jeff J. Gilbert, Mohammed Pessarakli, and Steve Nolan. "Overseed Home Lawn Variety Trials 2006-2007." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2009. http://hdl.handle.net/10150/216661.

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Spring transition (from ryegrass to bermudagrass) has been problematic for the last 20 years based on, in part, improved heat tolerance and lower growing cultivars of perennial ryegrass. Annual ryegrass is used sparingly for commercial properties and for home owners in southern Arizona. Hybrid ryegrass (cross between perennial and annual ryegrass) has been manufactured by seed companies in an effort to improve the transition of a grass used specifically for overseeding, with improved turf grass attributes over those of annual ryegrass. A field test was conducted to evaluate several hybrid ryegrasses, two improved annual ryegrasses, and Gulf annual ryegrass under homeowner conditions. The true annuals produced the quickest amount of ground cover in the shortest period of time. By early December, all plots had 98% or more cover, with FH having 95% cover. Transend, Transport and 041 Lh had consistently high quality scores throughout most of the 8 month test, with Transport and 04 1 LH scoring for fair turfgrass quality into mid June. Sprint annual ryegrass had excellent turfgrass quality scores in November and December, however, scores declined substantially in April and afterwards. After emergence and into early December, Transport and 041LH clearly had the darkest turf coloration, with 041LH producing a turf with a color intensity typical of medium green perennial ryegrass. Gulf and FH were noticeably lighter in color. Gulf, Sprint and Transcend developed ring/patch type disease symptoms in early February 2007, while others did not. "Stemminess" ratings in late spring (a time at which annual ryegrass is typically pronouncedly so) showed that FH intermediate and Gulf produced the most "stemmy" turfs, followed by Sprint annual. Transport and 041LH showed hardly any seed head culm development, with Transcend being intermediate. Interestingly, not all the entries which generally had the highest numerical rankings for density, texture, uniformity and overall turfgrass quality, had the highest percent plot living overseed during transition. Entry 041LH had 30% overseed, 46% bermuda, and 24% straw. Transcend had 16% overseed, 25% straw and59% straw on June 12. Transport had the highest retention of green overseed (72%), with 23% bermuda and 5% bare ground or straw plot cover. Sprint had 19% overseed, 20% live bermudagrass, and 61% bare straw plot cover, more so than that of Gulf. Final quality scores showed that 041LH and Transport had the best quality mean rank values, with all others having low quality scores on 12 June just prior to scalping to fully reconstitute the underlying Tifway bermudagrass. This shows vast improvements in turfgrass performance for INTERMEDIATES, which previously (and again) show near full acceptability in most turfgrass attributes, and now show enhanced color. Likewise, improvements in strict annual types show improved turf quality (Sprint) over Gulf.
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48

Kopec, David M., Jeffrey J. Gilbert, and David M. Jensen. "Ryegrass Germplasm Overseeding Trials." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2001. http://hdl.handle.net/10150/216377.

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A field test was conducted to evaluate the turf performance of improved hybrid ryegrass (sometimes called intermediate ryegrass) Lolium hybridum versus that of perennial ryegrass germplasm (Lolium perenne) for winter overseeding purposes. "Gulf" annual ryegrass was also evaluated for comparison purposes. On all evaluation dates, the treatment effect was significant for all visual response variables measured (quality, color, texture, density, etc.). The mixture of LHRT hybrid ryegrass/Poa trivialis established quicker than other treatments during the first month (November). Perennial ryegrass entries provided the darkest color turf. Among hybrid ryegrasses, Pick A-97 was slightly darker in turf color when compared to LHRT. LHRT alone was darker in color than when mixed with Poa trivialis. In terms of overall turf quality, Pick A-97 and LHRT hybrid ryegrasses were essentially equal in performance. The spring decline was greater among hybrid ryegrasses than that of perennial ryegrass. Both hybrid ryegrasses (A-97 and LHRT) were superior to annual ryegrasses in all aspects of turf performance. By mid-June of 1999, Pick A-97 had more bermudagrass present (52%) than LHRT (28%). LHRT had more straw-colored (dead transition grass) than A-97 as well. By early July, A-97 and LHRT had 72% and 62% bermudagrass, respectively, and essentially the same amount of overseed present (20-23%). LHRT had 15% plot straw at this time, while A-97 had 8%. Among perennial ryegrasses, Sunshine had the slowest transition (42%), followed by Jiffie (50%) and Future 2500 (71%) by early July. The addition of Poa trivialis to LHRT hybrid ryegrass increased overall quality of the LHRT alone, but slowed transition slightly, most likely due to increased canopy densities achieved by the addition of Poa trivialis. This test demonstrated that the hybrid ryegrass germplasm tested here provided adequate fairway turf performance, and that transition among and between Lolium germplasm is variable, and genetically dependant.
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49

McGrady, J., N. Oebker, P. Tilt, J. Nelson, M. Butler, and M. White. "Oriental Vegetable Cultivar Trials." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/214169.

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50

Clark, Lee J. "Short Staple Variety Trials in Cochise County, 1998." College of Agriculture, University of Arizona (Tucson, AZ), 1999. http://hdl.handle.net/10150/197258.

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Variety trials were grown at two locations and with two different sets of short staple varieties. One trial on the Robbs farm, north of Kansas Settlement, tested two acala varieties and the most promising advanced strain from New Mexico, two short seasoned varieties from SureGrow and one Australia variety. The other trial on the Glenn Schmidt farm, in Kansas Settlement, tested seventeen upland varieties as part of the statewide testing program. The highest yielding variety in the Robbs trial was SG 404 with SG 125 coming in second. In the Schmidt trial, FM 989, an Australian variety that has performed well in Safford, had the highest yield, just over 2 bales per acre.
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