BULLETIN 



OF THE 



DEPARTMENT OF AGRICULTURE 



Trinidad and Tobago. 



Parts 2,3 & 4.] 1922. IVol. XX. 



SUGAR. 



. SUGAR CANE EXPERIMENTS, 1920-22. 



TESTS OF TRINIDAD SEEDLINGS AND OF NEWLY 

 INTRODUCED AND OTHER VARIETIES. 



By Joseph de Verteuil, f.i.c, f.c.s.. Agricultural Chemist, and 



L. A. Brunton, Assistant Superintendent, St. Augustine 



Experiment Station. 



This report is divided into two parts : — 



(1) Raising and testing of new Trmidad seedlmgs. 



(2) Testing of varieties grown in plots. 



Raising and Testing of New Trinidad Seedlings. 



The work started in 1917 of raising new sugar-cane seedlings 

 has been continued on the lines indicated in the report for 1917-19 Q) 



TRINIDAD SEEDLINGS RAISED IN 1921. 



During the flowering season of 1921, the canes arrowed late and 

 very irregularly. Of the known good parents, only seed from H.? 

 germinated freely and half of the seedlings planted out were raised 

 from this variety. Other good parents from which a few seedlmgs 

 were raised, are B. 6835, M.P. 55 and Bourbon. Fertile seed of the 

 following varieties was obtained from Union Hall Estate : — D. 625, 

 B. 6308, B. 6450, Ba. 6032, B.H. 10 (12) and "Mc Culloch " 

 seedling. 



Altogether over 15,000 seedlings were raised during 1921 ; of 

 these 4,565 were potted and 3,626 of the most vigorous planted out in 

 the field between March 1 and April 12, 1922. A very good start 

 was made by the seedlings planted out early in March as the weather 

 was very favourable, but from March 15 to May 17 a very dry spell 

 was experienced at the Experiment Station, only 0*64 inches of ram 

 having been registered during that period, aad a large proportion of 

 the smaller plants dried up. 



(\)~Bull. Dept. Agr., Trinidad and Tobago. XVIII, 136 1919. 



