Studies on the biotypes of Cynodon dactylon (L.) Pers. I. Botanical investigations

Code (CO)	MSI99P0947
Author (AU)	Rochecouste, E.
Title - English (ET)	Studies on the biotypes of Cynodon dactylon (L.) Pers. I. Botanical investigations
Document Type(DT)	Periodical article
Date of publication (DP)	1962
Series (SE)	Weed Res.
Source (SO)	2, 1-23
Notes (NO)	Also published as Occ. Pap. Maurit. Sug. Ind. Res. Inst. 10
Language of text (LT)	En
Abstract (AB)	Studies on clones of Cynodon dactylon (L.) Pers. have revealed the existence of four biotypes of this species. The sole use of morphological characters to classify them was found unsatisfactory and other definite diagnostic characters have been introduced comprising hair group characteristics and leaf and stolon epidermal structures. Cytological studies showed that the biotypes differ in their chromosome number; tetraploid and triploid races have been distinguished. Phasic growth investigations have pointed out that the biotypes have a similar growth behaviour but that the tetraploids are more vigorous plants that the triploids. Studies on the seasonal variation in available carbohydrates in rhizomes and roots have established that the seasonal trend of this reserve substance in these organs is related to rhizome growth.
Descriptors - English (DE)	CYNODON DACTYLON SUGARCANE WEEDS WEED CONTROL
Descriptors - Geographic (DG)	MAURITIUS
Sort Key 1(K1)	Sugarcane: Weeds, weed control and management
Date record entered (DA)	1992-05-19
Language of analysis (LA)	En
Affiliation (AF)	Mauritius Sugar Industry Research Institute
Location (LO)	COWA
Processing status (PS)	CAT
MSIRI Staff (MS)	COWA