Evaluating Potential Rice Varieties from University and Industry ...

More documents

Recommendations

Info

RESEARCH PRESENTATION (cont.) 3) Delayed planting effects on milling Table 3 shows milling yields as influenced by variety, location, and planting data during 2003. These data show that variety appears to have the strongest effect on milling yields. Location also affected milling yields and this year’s data are unusual in that the delayed planting at Beaumont had higher milling yield than for early planting except for XL7 and XP710 which lost milling when planted under delayed planting conditions (see Table 3). At Eagle Lake, delayed planting tended to lower whole grain milling which has been the trend in previous years. 16
RESEARCH PRESENTATION (cont.) III. OBJECTIVE THREE Provide a single economic index calculated from each variety’s main, ratoon and total crop yield, and price/cwt. A. Methods Appendix Table C-1, shows that the price of milled rice including premium ranged from $7.11 to $8.55/cwt based on the variety’s milling and grade using Nov. 1, 2003 prices. James “Tinker” Hewitt of American Rice Growers Co-op Association, Anahuac Division calculated at these prices for us. Table 4 (page 28) shows each variety’s average main, ratoon and total crop net value for the early planting date at each location. The varieties are ranked in order of decreasing net value. Their relative rank is the economic ranking. B. Results Objective One (early planting) economic analysis Economic analyses of Objective One’s N rate and seeding rate shown in Appendix Tables C-2 and C-3 were averaged for each rice variety to get a net return/A for main crop, ratoon crop and total crop into one simple table (Table 4). Table 4 lists each variety in order of decreasing total crop net return for Eagle Lake and Beaumont. Table 4 provides an overall economic comparison of all varieties for main, ratoon and total crop under 2003 growing conditions at Beaumont and Eagle Lake. A variety’s economic rank relative to other varieties is a more comprehensive comparison of the variety than a comparison of actual main crop yield, ratoon crop yield or milling quality alone. The importance of ratoon crop to total crop net income/A is illustrated in that the average ratoon crop net income/A for all varieties was $216/A and $159/A at Beaumont and Eagle Lake, respectively, while the variety main crop net income was $19/A at Beaumont and minus $39/A at Eagle Lake. # Beaumont (clay soil) On the clay soil at Beaumont the five hybrids (XP710, XP712, XL7, XL8, and CLXL8) had five of the highest total crop economic indexes (See Table 4). The hybrid’s high total crop economic indexes relative to other varieties came from high main and ratoon yields at Beaumont which tended to compensate for their slightly lower than average milling yields. Total crop economic rankings 7 through 15 were achieved by Cheniere, Cocodrie, TX8181, Saber, Cypress, CL161, Jefferson, Bengal and Francis, respectively. 17
Page 2 and 3: Table of Contents EXECUTIVE SUMMARY
Page 4 and 5: APPENDIX TABLES Table of Contents (
Page 6 and 7: EXECUTIVE SUMMARY (cont.) The highe
Page 8 and 9: EXECUTIVE SUMMARY (cont.) OBJECTIVE
Page 10 and 11: RESEARCH PRESENTATION The primary r
Page 12 and 13: RESEARCH PRESENTATION (cont.) Calcu
Page 14 and 15: RESEARCH PRESENTATION (cont.) # Eag
Page 18 and 19: RESEARCH PRESENTATION (cont.) Rice
Page 20 and 21: RESEARCH PRESENTATION (cont.) 2) Ec
Page 22 and 23: RESEARCH PRESENTATION (cont.) V. OB
Page 24 and 25: Table 1-B. Variety and seeding rate
Page 26 and 27: Table 2-B. Delayed planting effect
Page 28 and 29: Table 4. Summary of economic perfor
Page 30 and 31: Table 5-B. Additional information o
Page 32 and 33: Fig. 2 Milling yield and lbs. whole
Page 34 and 35: Fig. 3-B Main and Ratoon Crop Yield
Page 36 and 37: Fig. 4-A Eagle Lake Main and Ratoon
Page 38 and 39: Eagle Lake Fig. 4-C Main and Ratoon
Page 40 and 41: Figure 5B Growth Stage Intervals Wh
Page 42 and 43: Appendix Table A: Variety Data Summ
Page 44 and 45: Appendix Table A: Variety Data Summ
Page 46 and 47: Appendix Table B-2: Variety Data Su
Page 54 and 55: Appendix Table B-10: Variety Data S
Page 60 and 61: Appendix Table C-1. Rice support pr
Page 62 and 63: Appendix Table C-2 continued 2003 E
Page 64 and 65: Appendix Table C-3 continued 2003 E
Page 66:
Appendix Table D-2 Delayed Planting
show all

Evaluating Potential Rice Varieties from University and Industry ...

Create successful ePaper yourself

Delete template?

Save as template?