Evaluating Potential Rice Varieties from University and Industry ...

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RESEARCH PRESENTATION (cont.) V. OBJECTIVE FIVE Collect variety development data others can use for developing DD-50 values for predicting critical growth stages. A. Methods Days from emergence to critical growth stages were recorded for all the varieties grown in the early and delayed planting studies at Beaumont and Eagle Lake. B. Results Growth interval data as shown in Figures 5-A and 5-B can help rice producers identify which varieties will mature first and last under delayed and early planting. Also the days to various growth stages coupled with heat unit accumulation can be used by research to develop DD-50 data for predicting critical growth stages in specific varieties. Also Table 5B gives data on days from emergence to important growth stages. It was observed that higher N rate and lower plant population delay heading and maturity 3 to 5 days. 22
Table 1-A. Seed/pound (i.e., seed size) influence on seed/ft 2 at various seeding rates. The number of emerged seedlings/ft 2 will depend on germination rate and planting conditions and soil conditions during seedling emergence a Seeding Rate lbs/A Variety Seed/lb b 40 50 60 70 80 90 100 110 120 130 140 Seed/ft 2b Bengal 15624 14 18 21 25 29 32 36 39 43 47 50 Cheniere 19794 18 23 27 32 36 41 45 50 55 59 64 CL161 20045 18 23 28 32 37 41 46 51 55 60 64 CLXL8 23300 21 27 32 37 43 48 54 59 64 70 75 Cocodrie 17416 16 20 24 28 32 36 40 44 48 52 56 Cypress 18145 17 21 25 29 33 37 42 46 50 54 58 Francis 20572 19 24 28 33 38 43 47 52 57 61 66 Jefferson 16736 15 19 23 27 31 35 38 42 46 50 54 Saber 19914 18 23 27 32 37 41 46 50 55 59 64 TX8181 19145 18 22 26 31 35 40 44 48 53 57 62 TX9092 18706 17 22 26 30 34 39 43 47 52 56 61 XL7 21058 19 24 29 34 39 44 48 53 58 63 68 XL8 20500 19 24 28 33 38 42 47 52 56 61 66 XP710 19536 18 22 27 31 36 40 45 49 54 58 63 XP712 23024 21 26 32 37 42 48 53 58 63 69 74 a 100% to 60% of the seed would be expected to emerge depending on % germination and planting conditions. b Seed/lb values are averages and can vary as much as 10% depending on yield and degree of seed processing. 23
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 16 and 17: RESEARCH PRESENTATION (cont.) 3) De
Page 18 and 19: RESEARCH PRESENTATION (cont.) Rice
Page 20 and 21: RESEARCH PRESENTATION (cont.) 2) Ec
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

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