13 pages matching physical selection in this book
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One Variety of Beets d Preparing Seed prior to Sowing
2 other sections not shown
acre adhering agronomists ameliorated analysis annuals average beet cultivation beet sugar beet-seed beets rich Besny carbonic acid chemical containing crop density early existing experiments factory farm farmer feet fertilizer fibs filtration flasks France frequently ft>s furnish seed germination give going to seed grams growth guano Hanriot harvesting important impurities inches inferior inverted sugar juice laboratory latter leaves Legras lime Magdeburg magnesia maturity method of selection moisture necks nitrogen Pagnoul phosphoric acid physical selection pipettes placed plant food polariscope polarized potassa previously produce quality of beets question radicles results obtained rich in sugar saccharine quality saline sample sampler sand seed formation seed growers seed obtained seed production selection of mothers Silicic acid silos small cylinder soil stalks stems sucrose sugar beet sugar manufacture sugar percentage superior beets surface taken temperature tion tip end tons tubes variety of beet view to seed Vilmorin weight yield