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Planting Date Affects Grain and Milling Yields of Water-Seeded Clearfield Rice

Rice Research Station, Louisiana State Univ. Agricultural Center, Crowley, LA 70578

View larger version (32K): [in this window] [in a new window]   Fig. 1. Grain yields, visual emergence, days to 50% heading, plant heights, head rice, and total milled rice means of seven planting dates averaged over years and cultivars. Bars with the same letters above are not significantly different based on Fisher's protected LSD. Significance level of P = 0.10 was used for separation of visual emergence and total milled rice means, while P = 0.05 was used for all other traits. Visual emergence is a visual rating of seedling stand at 1- to 2-leaf stage, where 1 = excellent stand and 9 = no stand.

View larger version (89K): [in this window] [in a new window]   Fig. 2. Mean grain yields, visual emergence, days to 50% heading, plant heights, head rice, and total milled rice yields of Clearfield rice cultivar CL161, Clearfield hybrid CLXL8, and conventional rice cultivars Cheniere and Cocodrie at seven planting dates, Crowley, LA, 2003–2005. Bars with the same letters above are not significantly different based on Fisher's protected LSD (P = 0.05). Visual emergence is a visual rating of seedling stand at 1- to 2-leaf stage, where 1 = excellent stand and 9 = no stand.

View larger version (21K): [in this window] [in a new window]   Fig. 3. Ten-day average maximum (T max) and minimum (T min) air temperatures and 10-d accumulative rainfall from 1 March to 20 October recorded at Rice Research Station, Louisiana State University AgCenter, Crowley, LA, 2003 to 2005.