None
Bul. 167, Bureau of Plant Industry, U. S. Dept. of Agriculture PLATE VII. Fic. 1.—FLOWER OF DAHLIA (ENLARGED FIVE DIAMETERS), SHOWING THE DISK FLORETS, THE STIGMAS OF WHICH ARE NEARLY ALL COVERED WITH POLLEN. pe] Fia. 2.—THE DAHLIA FLOWER (ENLARGED Five DIAMETERS) SHOWN IN FIGURE 1, WITH THE OUTER FLORETS DEPOLLINATED BY A JET OF WATER. Bul. 167, Bureau of Plant Industry, U. S, Dept. of Agriculture PLATE VAN. Fic. 1.—DAHLIA FLORETS (ENLARGED TEN DIAMETERS), SHOWING DEVELOPMENT OF THE STIGMAS. 3 Fic. 2.—DAHLIA FLORETS (ENLARGED SIX DIAMETERS), BEFORE AND AFTER DEPOLLINATION Bul. 167, Bureau of Plant Industry, U. S. Dept. of Agriculture PLATE LX. A B C D Fic. 1.—DISkK FLORETS OF HELIANTHUS (ENLARGED Five DIAMETERS), SHOWING DIFFERENT STAGES OF DEVELOPMENT. Fic. 2.—FLOWERS OF CANNA INDICA (NATURAL SIZE), SHOWING STAMEN AND PISTIL IN DIFFERENT STAGES OF DEVELOPMENT. Bul. 167, Bureau of Plant Industry, U. S. Dept. of Agriculture. PLATE X Fic. 1.—FLOWERS (PROTEROGYNOUS) OF PLANTAGO LANCEOLATA, SHOWING PISTILS MATURING BEFORE THE STAMENS Fic. 2.—FLOWER (PROTERANDROUS) OF CAMPANULA ROTUNDIFOLIA (ENLARGED THREE DIAMETERS), SHOWING THE STAMENS MATURING BEFORE THE PISTIL. Pa : 7 er =. wy | ee * Oh eV wa — ae Bul. 167, Bureau of Plant Industry, U. S. Dept. of Agriculture PLATE X|] Fic. 1.—SINGLE TEA ROSE, SHOWING How EASILY HERMAPHRODITE FLOWERS HAVING LARGE STAMENS MAY BE EMASCULATED. Fic. 2.—FLOWERS OF ROSES (NATURAL SIZE), SHOWING METHOD OF EMASCULATION. Bul. 167, Bureau of Plant Industry U.S. Dept. of A culture PLATE ST. Fic. 1.—FLOWERS (MONCECIOUS) OF THE BEGONIA, SHOWING THE SEXES IN DIFFERENT FLOWERS ON THE SAME PLANT. Te Bi B [== -f x = Fic. 2.—STAMINATE AND PISTILLATE FLOWERS OF CODIAEUM VARIEGATUM FROM THE SAME PLANT. ~'s@ e +e i] Bul. 167, Bureau of Plant Industry, U. S. Dept. of Agriculture PLATE XIII. FIG. 1.—STAMINATE AND PISTILLATE (DIGECIOUS) FLOWERS OF WILLOW, FROM DIFFERENT PLANTS. Fig. 2.—FLOWERS FROM STAMINATE AND PISTILLATE PLANTS OF ASPARAGUS OFFICINALIS (ENLARGED FIVE DIAMETERS). Bul. 167, Bureau of Plant Industry, U. S. Dept. of Agriculture. PLATE XIV. ¥ * im‘ am + & FLOWERS FROM FIRST-GENERATION SEEDLINGS OF CROSSES OF PANSIES (NATURAL SIZE). Viola tricolor 2 & cultivated forms 4. The row of flowers at the bottom is Viola tricolor uncultivated. Bul. 167, Bureau of Plant Industry, U. S. Dept. of Agriculture. PLATE XV. SINGLE BRANCH OF HyYBRID DAHLIA PLANT. Dahlia chisolmii 9 & Twentieth Century dahlia #4. | J INDEX. Page. a Air, compressed, use in depollinating alfalfa, method and results .......-...-- 22 : Alfalfa, asexually propagated progeny, results of planting. .........--------.-- 23 } GLOse Mom ITe Wal CTO Uses acer am = heen a ay 2 rs ete ete ee A oe oy col 18-22 GloMerhods ai LOSMIte acc <A So eee ee eto sae 18 BUG On Cemnan ten CImed eee < Berar eae 2 wae - gic os 17 RREA TIM OTIS 1s map eee ven 8 ke cree ee arta Cee eS or as, Sotees, = = 25-26. WOrsaccomiplashed muytherPaste- tus ae ~ 29 eg eee. ee NGM ' depollination by compressed air, method and results...........--.-.-. 22 water, metods Hii ROSWMLS, Seat atad 2-2 cto R es < Lee flowers. emasculation., diticulties. <=. 22c2e¢c 02 cee tect eee ees 24 Minero han Seon pollen: ait, CANIS ..o 2515 Suns ia J os Seow ee a Sed 15 MGuIUMA On MSeCh ONAN AlOlsscuece osteo a eared a a13%.0''e o's Lena ee = 17 Meeessity on testint and methodused 2.02. 22cccc-.5.- ie. eseeen tenses 23 Peruvian, experiments in crossing with Turkestan alfalfa........2...- 18-22 Dlavite ton Grossi CrOWwMo ANCVCATO soko whee Sa eo. oe BE ee 22-23 results of planting asexually propagated progeny.......-.-.-.....----- 23 IOAN AERP SNA] OV 8% os cs a ee a ae ee a Reed meron Mme Lose been emcee. O62 ie kes om yt cae ees Se eae oon We raising large quantities from a cross............-.-----------+---- 23 studies in crossing experiments........-- oe eps O23 Turkestan, experiments in crossing with Peravi ian alt Ifa. Ae a: ache oi 18-22 Anthers, ddfnifons St eyed RARE RR he AU oh a og 30 EEIDOVAM BERG MUS 26 et bt Caer ee a erro Bie oe ok ecw d « 31 ARMED Cp CMA SCULAtO Mims ae eye sets aioe oe nts PERG claw. sounds 6 etc « Be 31 PAnpardoUs dicectous plant. pollination 22. 222-22 222.5552 22e5-5-+22- 22-5 e es 30, 31 ANE ERTUS,, TOONS VOLS av lone T eV Wa ek ee mea ain Es oe ne ce ee 14-15 Va heaT ey ee 0 Wa eXCS TOAUTS 50) C5 01 PR ap nee a es 30 iberonia, monceeious flower, pollination: -S-2.5.2522- 2.202522 tel. c ee. cee ee. 30, 31 Brandmchanes i suialesiont allan as5es mo sok eye 2. eee ol 17 Breanne. plant, cross-fertilization,, definition... 2.2-..2.2).. 222.2 .c. eee. Budding, method of vegetatively increasing plants...................-.------ 26 Bulblets; use im vegetative increase of plants. -..---.-..:.J22..22.-----52---- 26 Ou ASST ai SEIT ee ee cl | a OR 25-26 Cactus dahlia, experiments in crossing with Twentieth Century dahlia ...... . 29 Suriiipe heriiapnrodite Homperas 282252. 2 0220222202 o rk. cee oe. ete ee 30 11026— 35 36 NEW METHODS OF PLANT BREEDING, Carnation, masculation ob flowerse- =a. s2 se ee oe ee eee 13 seedlings ’Crossin oii. perience ey ee, eee 26 Carrots crossing = on. 22: occ. eee eee 0 ee ree 25-26 Celery; crossing = =..22 520... 2 toa eee oe.  ee ee 14-15 seedlings; crossing. <5 5s see ee eee Se ya Oe ere 26 @imeraria. method) of breedimot see. ose 14-15 Clovers, cross-pollimation;smethods . -< 2-2 ease eee ee ee ee 29 emascilation tditheultics. 22229508 eee le eee 24 Codigeum; emasculationsol Mowers = os = see tne ee ee eee Composite, emasculation of flowers, obstacles:-22222 24. = 9-2 2s ee 13-14 uncertainty of cross-fertilization?.2> cu. = ae eee ee 14 Cormlets; useiin' vegetative propagation =-=.--.- 254-5... eee eee 26 Cosnios,; method ‘of breeding=.<5_- 9 ae as poe ee eee ee ee ee 14-15 Cowpea, scrossing methodstandiresults-922 52 - - te ee ee ee 24-25 difficultytimitreatine: pollen --23 seaen 122 os eee an eee 32 New-Era;.crossing experiments see == oases eee ee ee 25 small plants compared with large plants for seed production. ......-. 25 Whippoorwill; ‘crossingiexperiments: 225-12 9s eee ee ee 25 Cowpeas, emasculation ditheultiés2--202 oss ote ae ee ee ree 24 Cross-breeding. See Breeding, cross. fertilization. See Fertilization, cross. Crossés;comi posite flowers; (Or1gitic 0. Sek) 2 eee Se re ee 14s Crossing alfalfa. See Alfalfa, crossing. cultivated varieties of plants on natural species ..................-.- 28-29 experimenis:inyplant breeding! 2: 222223. 2 oe vere ee a eee 15 large-flowered lerumies ..-.22t 5 3 S-ee See cee tee ee ee ee oe ee 23-25 Cuttings, usein vegetative increase,Of plants. .5--52-2e4 sso ee eee 26 Dahlia, Mexican, experiments in crossing with Twentieth Century dahlia. ... 28-29 Beed lin >. iCNOSSING co. ance ae oe ne en 26 Twentieth Century, experiments in crossing with cactus varieties. - 29 Mexican species, TO Wises. eis 28-29 Dahlias, experiments with first-generation seedlings. .................-.-.-.--- 28-29 method. of breeding! 2. 6.9.58 a- 2 oe eee eee 14-15 Depollination, alfalfa, by compressed air, method and results...........-...--- 22 water,methodaand*resultsies.- eet ee eee 18-22 defini tionsaisce Seta See ee Note ee eee ee eee eee 8 flowers) application (of Wwaters=-=-2see >) eo eee 16 devices required and description..........---..--..-- 12-13 methodsand ‘results. -2es. = sas: 5 oe 3 eee 14 tools'‘required and description 22.>-:=--. 2. =. ee ese 11 lettuce; experiments ~-2. 22423026 ae ee oe ees eee 9-10 Emasculation, flowers,;common methodss.2.4-2=---ee->-- eee ee See eee 30-32 Composite; obstaclesst2°. 2.22. =. 2 Ss >see ca eee 13-14 definitionvand! method) see. .-ceee eee ae eee IBY Sil lettuce, experiments and resultsio= 2-2 s- eee ee 8-10 studies iniplant breeding. <- 2022-225 a eee ere 7-8 tools required and ‘description: 4. -=-2— sae ee er 1 Fecundation, study of method of prevention: ~-.-- =~. 2-22-22 ao) o es 8 167 NDEX. ot Page IP eTinl eon. ROVSEL 6 Key TWN NYC) ols ats ae ice I ee 13 ioretswichimlZatlOM- Ol NOWEISs2e =o. ccc. ed 25 tees ee hte eet eee es eee eee eee 18-14 Flowers, application of water in Repolleation Sal 5 os oa EEE eee eee 16 common, emasculating and pollinating, methods........-............ 30-32 composite, emasculation, obstacles ..........-...........--..-......- 18-14 hybrids and crosses, origin.....-.--- hob i 8 sec 415 depollination and emasculation, tools required pat dene cones eee 11 devices usedand description s:<2....-:2.--.224..2.2228 12-13 GICECIOUS: CetmMIiGlONys 2. 2s os.q2t eee ees ias:.c < ene bbl e es thee 30 CSSeHblalsOrmtan see seeecas a2 4.8: see eee eee 2 akc afne Sip <bee a Se 30 hermaphrodite td GhinnttOnN+s2..--6 ss. sees = Sek See eee re Shes 30 models, use in agricultural colleges and schools ............--------- 24 MIGHeP CIMA ere MN TON =~ ceca Ge ey A Dk 30 HO lMIMa OU st eUNO Cae. Helianthus argophyllus, experiments in crossing with Helianthus debilis...-. 26-27 debilis, experiments in crossing with Helianthus argophyllus ..... 26-27 method of depollination and results.......................-..---- 4 Eiviouidization, naturalsspecies....-.-2-. 22-2. << ee ces ete eset een see ee eeee- 26-27 Melanemree cine. COMNIMONs ¢ 2-22 fend. Ped Bac e cice 25 oda =ncit ot? 13 experiments and reeuillte: Seek ae ade Qec 15 preparation of seed and pollen bearing parent plants........--- 15 Ey bride compositeslowerd; Ooi... 22.42 ss cacuct be. ogden oes - oneness ees 14=15 Prass ex PerimMen tal CLOSSINGn 265222 65. -2ci2 nt beee eee ciate eet se = 21 proportion of seeds germinating...........--..-.........224.. 27 GAN E G1 OILy eT OM ETI oe ou Hai, onde Patna views Oech SP Ades si 2 - Zi hehanthuss experiments ms crossing: 9.2... 52-2 wan cc bec a se. oc. 2 2s 26-27 PT RCOMMCHOMULO DIB EMss 2° ee a) oe ee ee Be i ea So ep 7-8 Paths experimentsrm: CrOssIMe=. =. 2.2 se tet Se gee oe Se ene Be eee 23-24 avers use 1m vecerailven propagation su,2So6.2 2c tc cen betas eee 26 Legumes, large-flowered, experiments in crossing......................------ 23-25 self-pollinated, experiments in crossing...........-...--------..---- 28-25 Metiicesbrecdimonmethodes cess". .2 oe ee haa oe Se ne ec ace ole eee ede 14-15 CEOS Mex PerIMenNts, J oc olsen 52 ile eke et eess Hews, see as Shab aw ens 2 8-10 TUISHIGS ae Ses 25-26 depollinationramethodie see: 22h cee A Se ese oe ode ce ws owe 16 Lorene; Cxpenimetitddn: CROSSING +. 22/2 noc Sales inchs eee e 8-10 Golden Queen, experiments in crossing on Grand Rapids lettuce... 10 Grand Rapids, experiments in crossing on Golden Queen lettuce... ..- 10 pollenenethodsroteremo val seer ae eee en ees W's ee noe 8-10 Polmnaton 6x Men mMentse es wie epee te Oo Ee oe odaas 9-10 seeds, experiments in first-generation crosses. ..........---------+-- ny) 167 38 NEW METHODS OF PLANT BREEDING. Liguliflorze, uncertainty of cross-fertilization Lily, dithculty injtreating pollens Ae Ae. 222922. - 5 eee eee emasculation;, suitable:times =. ~e-eseess. 2.) = re ee Marigolds: method ofibreeding24 35... 6 tet 2k oo Medicago species. See Alfalfa. Melilotus species, emasculation, difficulties Méndel, Gregor, studies.1m plant breedinge:2 ns sa1e eres ee Nepenthes*enrasculation) . ° 2: 2s. a. aoe ea eee Nae eee Nut trees, seedlings, crossing Onions, crossing SS = wee mm we een a, eee ema bale a Sime mw el melee lw oye st eye = we eae a oie ait ee ao Ovary, definition Pansies, heat-resistant characteristics wild, experiments in crossing with cultivated pansies. Parsley, crossing sley, crossing Parsniips) scr@ssing. ot) tits ates ee eee apse cee ae ace cee ee Peach: emasculatiomloi towers to ses eee eee eee Pelargonium seedlines; crossing: ao). ana ae a eee ee ee ee Phaseolus, experiments in crossing Pistil «definition < 52 2oe5. eh ee ce ee pe ee a Pisum; €xperimentseicrossino. cs = ae 5 ene ee Plant breeding. See Breeding, plant. Plantago lanceolata. See Plantain. Plantain, proterogyny of flowers Plants, cross-breedine vstudies: 22250 eee oe ee experiments in crossing cultivated varieties on natural species... .... - femaleyorcans +d 6scriptiOna 4. so ee eee isolation from insects necessary- when selected for pollen..............- male organs; GescriptiOmcss cs. c aoe eee eee ee eee eee perpetuating, choice of selections: 22. 2. ee eee eee ee seed and pollen bearing parents, preparation for hybridization ........ vegetative: propagation). methodss..£ 59-2222. 2 an aa ee Plates, description: 2... 4a) = eee ee ee ee Poa arachnifera, experiments in crossing with Poa pratensis.................-- pratensis, experiments in crossing with Poa arachnifera................... Pollen, application to stigma, necessary conditions. ...................--.--- bearers, crowth ynder plassirequired._.2 92-2. eer = eee eee preparation of parent plants for hybridization .............-.-.- care’ of plants from which selecteda- 3-255 eee ee ee eee efi tony 2 es es oe See ae aa gk method of application: toistiomian:s-0 7). - soe ek oe eee ee ee removal from stigma when desired ...--........-.-...---.-- BO CUNITID YS 25 ee eee epee ee ey me tpn ee «oy Nee ene ea methods: of usé\in plant crossing <ese2. tee eae Soe ee resultstof careless :selectiones s-2 25 eee eee ee rose, methods of securing Pollination=clovers) methods so ea. eee ee le eee COMMON! Mo werss met iOS ese see pe ee ae ee ea conditiony Of Stiommas. sey are Sees eee ere a flowers; methods. -- sa ee eer. 2 ee eee preparation of flowerss-¢-7-- = 20-222 ee ee eee 167 Page. 14 INDEX. crate aGincee lt atloniO) NOWGNs--- = ees... ss sk ee sae se ae eb eee ee RoevKOSsmse Ca lilac: GROSSING seep ene a soe e ease incto ase sos ess. bee hiS ee = CReGUSLiy Gish, (EMR MO TESA Set Sach el a a ROSE Me MASGI) ol OURO Mil OWerSeme see a2 eee oe a see ee ce ls |AVBITTERY Ola ord yh) ay ee ee ee a TOGINTMEN To Tay bien ie) rl eVeLs bea ha ee ee ac ee MO TOTO ONChOSSLU Ol = 6 ae aepene Petey et Sok Se Ss) asa ~s SEO el amor. .SuUalesionalialia. -2 922 -peeeere ease se) ae vee: Seed, alfalfa, raising large quantities from a cross....... bearers, preparation of parent plants for hy partioe CRIN Uh) Wl 9p ey peace ta Ae peered METI DAEAC LSE IS iN eee ee ore ee See eS nee ants Sete SHRP ODT ANS, NE REI SHGWT VOT Ae A Ses ce ee ai eaten ae = Shem aconation atime of pollination=-22-=-.9s25-.-.,5-. 565-2. 2222 ns eS) LG STNG O Tiere pen potas eee tee ee ye ne Renee irene Srey ae Sere ee MC UNUCIOMA DLV AOR ONCE, cine Ge So canoe es TE ees ose ct HOSE MEAT OMl ONO MMOs amrec sae ee he ee. eee ee es stigmas, protection necessary after pollination --.....----....21:.2:..-.-+-s-. SiAvlopiim, experiments In Crossing - - 22 - eee eee we Pee eww eee bent ee ira wiOeGhbles “seedlings yCrOssIn oe. 9-545. Mele oo Soe ee ee ee ee. pain Vel OPEC C61 1G] OTIS Sees am eae ss Rae eye ye RR» Se meas oy BAS. & Tecoma grandiflora, experiments in emasculation...........-.....----.-.---- Thrips pollen-catine, carriers of pollen. 2 22.12.92 2e 2 os) s se lychee es ens esee responsibility for impure pollen...................-.-. SRC peculation of flowers Ses Satan, Aone SEI DiS Mm Pm SIN a T rees, fruit anal mie CORT be ees oe ee ee ants ee ae Se Sigs sc ez ee Trifolium species. Sez Clovers. De: CIRSS SHITE On ns ate @ SS eR ey ee Oe aaa Soc re Se ar et o studies i in crossing’ alfall ee ee EE eee en SME Rm es peers See C ane: iS Water, application to flowers in depollimating................................ use in depollination of alfalfa, methods and results ..........-....-.-. Wallowsdinecious plant, pollination. 75... -< 2:25.24 2c62255- 22282 en. nines... PALTMMAS LC UNOC Oly DRCCC LN OM seek 2a eg ee RN ERE ke es 167 — — eer oT ae ng ¥ ae oe oe vr - — SS A So ee i Te To agers [Continued from page 2 of cover.] 85. The Principles of Mushroom Growing and Mushroom Spawn Making. 1905. Price, 10 cents. _ 86. Agriculture without Irrigation in the Sahara Desert. 1905. Price, 5 cents. _ - 87. Disease Resistance of Potatoes. 1905. Price, 5 cents. 88. Weevil-Resisting Adaptations of the Cotton Plant. 1906. Price, 10 cents. _ * 89. Wild Medicinal Plants of the United States. 1906. Price, 5 cents. 90. Miscellaneous Papers. 1906. Price, 5 cents. 91. Varieties of Tobacco Seed Distributed, ete. 1906. Price, 5 cents. 92. Date Varieties and Date Culture in Tunis. 1906. Price, 25 cents. ~ 93. The Control of Apple Bitter-Rot. 1906. Price, 10 cents. _ 94. Farm Practice with Forage Crops in Western Oregon, etc. 1906. Price, 10 cents. - 95. A New Type of Red Clover. 1906. Price, 10 cents. ; : 96. Tobacco Breeding. 1907. Price, 15 cents. "97. 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Inventory No. 17. 1909. Price, 10 cents. 154. Farm Water Supplies of Minnesota. 1909. Price, 15 cents. 155. The Control of Black-Rot of the Grape. 1909. Price, 15 cents. _ 156. A Study of Diversity in Egyptian Cotton. 1909. Price, 15 cents. 157. The Truckee-Carson Experiment Farm. 1909. Price, 10 cents. 158. The Root-Rot of Tobacco Caused by Thielavia Basicola.. 1909. Price, 15 cents. : 159. Local Adjustment of Cotton Varieties. 1909. Price, 10 cents. 160. Italian Lemons and Their By-Products. 1909. Price, 15 cents. 161. A New Type of Indian Corn from China. 1909. Price, — cents. 162. Seeds and Plants Imported. Inventory No. 18. [In press.] - 163. Varieties of American Upland Cotton. [In press.] 164. Promising Root Crops for the South. [In press.] 165. Application of Principles of Heredity to Plant Breeding. [In press.] _ 166, The Mistuetoe Pest in the Southwest. [In press.] Ps bi ee =< 167 LIBRARY OF CONGRESS NA 00026809629. 