STUDIES IN INDIAN saGAROANE SEEDLINGS 



!)afi beeji carefully studied (<;/. PI. VII aud the text). The first indication of 

 the ^'ec't of salinity is seer, in the yellowing of the leaves. An interesting 

 fact wa.s noted in a batch of Sareiha seedlings tnuispianted direct from the 

 pans into the ground, when three nionths old. A preliiiiinary separation was 

 made, at six months, between dark green seedlings and such as had light 

 green or yellowish green leaves, but the final examination was delayed for h 

 \veek, after which some of ihe dark green seedlings were noted to have become 

 yellow. There was heavy raiii during the week. The cause of this was ai 

 once understood, avsd njay be evXplained by the curious eftect produced by 

 heavy rain shortly before the Agricultural Coiifereuce rnet at Coimbatore in 

 1913. The field of carte varieties was healthy and dark green, when a couple 

 of iuche:< of rain fell, and tlic Vih^^le fiold liu nCi! \-ellowish. After some study, 

 Uie following explanati< has been sub.stantiated by 



firrther observations. The KijghsJy ^ahne iaml, during iriigation in the trenches 

 had accumulated a layer of brown^ powdery earth just above the point to 



•malysis, this powdery earth showed die presejice ol as much a-s 11% of salts, 

 lh*^ti*ti0fldofift }a|y|e.r;:iff*rc!i^m. t>tewde(r?fv^dHit'.;je^.cth;mapRi^at(Scltt)r(lift:iio^ 



th«^ f!<?«C'i:;|!Fe^4is\i^< i^^t;i^HVooPii.»^: Vvfii^itW^ MntfeAtfv|i^4iWHi;.;wiitjreAtJiiii;.cai^ 



first ,jp]*i?.^§^,^^;.^t^|a^,..|;^^|i^^;ajd,^,^^^^^ 



the KP^r^t,,^f.^9aj;^^,^?^^Vp«^^W{^;19^V?^ 1'!!^' ('""i- -rowtli el the 



thiek canes i-s seen at th^' ^iiie. The ceistr^t! portioa wuk unpianted. 



Colorat;- i siheail; ;hat due ro disease^ is a wi^ll 



marked distfi.gu;; ■iijig character in jtiuii;.; ;,eedlings, although it becomes 

 diiiicuit later on. Tlu^ -heaths may be pure green, although this is compara- 

 lively rare. Th^ luiliy tinged wit)-, light purple, pinlc or a vinous 



• ■(•lour. Sometinie.% they are strongly bluish purple oi- even a clear 



pir:k, and a number of ckiNses have been ii;>!;!.rated according to variations in 

 th(> colour of the leaf J-Oiu^aths, which is rarely constant in any batch of seed- 

 li);.t;.s. Tlie colour of the very small shoot.'S, although depending pjimarily 

 or! iho colour of the leaf sheaths, appears to be of a somewhat diiierent 

 t-huracier. Tb ^' ■ ■' . ' ly^yfi purple or sometimes 



almost black. 



The colour oi ^;. . . , ...,.,,. ;.,.^ •.,-.■.■■. ...>,;,.„,.,.. j... ...^v ut colour 



on each side at the base of the lamina where it joins the «hf;(th) is t'aHily .seen 

 in young seedlim ful separati-: lour 



varies frpuj very darK cuocoiuic lo purple, reddish and i.auv.n to wax coloured, 



