Seasonal Variation of the Canopy Structure Parameters and Its Correlation with Yield-Related Traits in Sugarcane

Table 4

Seasonal changes of transmission coefficient for solar beam radiation penetration in sugarcane varieties.

Varieties	Seedling	Tillering	Early elongation	Rapid elongation	Late elongation	Mean
FN94-0403	0.574±0.28^abcd	0.415±0.21^abcde	0.277±0.16^f	0.228±0.11^bcd	0.216±0.13^a	0.342±0.23^cd
FN94-0744	0.616±0.32^ab	0.445±0.21^abcd	0.354±0.19^cde	0.217±0.10^cd	0.201±0.13^abc	0.367±0.25^abcd
FN95-1726	0.627±0.30^a	0.448±0.20^abcd	0.410±0.23^abc	0.268±0.15^abc	0.169±0.10^abcd	0.384±0.26^a
FN96-0907	0.551±0.31^bcd	0.443±0.21^abcd	0.351±0.20^cde	0.257±0.13^abc	0.193±0.12^abcd	0.359±0.24^abcd
FN98-10100	0.545±0.27^bcd	0.469±0.25^a	0.291±0.16^ef	0.228±0.10^bcd	0.141±0.09^cd	0.335±0.24^d
GT94-116	0.567±0.29^abcd	0.409±0.21^abcde	0.325±0.17^def	0.223±0.15^bcd	0.169±0.10^abcd	0.339±0.24^d
GT95-118	0.535±0.29^cd	0.418±0.20^abcde	0.460±0.28^a	0.275±0.13^abc	0.127±0.08^d	0.363±0.25^abcd
GT96-211	0.511±0.25^d	0.416±0.19^abcde	0.374±0.21^bcd	0.238±0.10^abcd	0.167±0.09^abcd	0.341±0.22^cd
GT96-44	0.587±0.27^abc	0.393±0.19^cde	0.322±0.19^def	0.225±0.09^bcd	0.153±0.08^abcd	0.336±0.23^d
GT97-18	0.635±0.31^a	0.388±0.17^cde	0.381±0.23^bcd	0.270±0.12^abc	0.193±0.13^abcd	0.373±0.25^abc
MT70-611	0.563±0.30^abcd	0.466±0.22^ab	0.316±0.15^def	0.173±0.07^d	0.205±0.14^abc	0.345±0.24^bcd
ROC10	0.603±0.30^abc	0.419±0.19^abcde	0.425±0.25^ab	0.299±0.15^a	0.158±0.09^abcd	0.381±0.25^a
YT92-1287	0.625±0.30^a	0.349±0.18^e	0.371±0.20^bcd	0.247±0.11^abc	0.173±0.10^abcd	0.353±0.24^abcd
YT96-107	0.602±0.30^abc	0.386±0.18^de	0.415±0.23^abc	0.239±0.13^abcd	0.143±0.07^bcd	0.357±0.25^abcd
YT96-794	0.545±0.29^bcd	0.458±0.21^abc	0.409±0.23^abc	0.291±0.13^ab	0.215±0.12^ab	0.384±0.23^a
YT96-835	0.599±0.28^abc	0.423±0.24^abcd	0.419±0.22^abc	0.276±0.14^abc	0.157±0.09^abcd	0.375±0.25^ab
YT96-86	0.577±0.28^abcd	0.397±0.20^bcde	0.383±0.20^bcd	0.265±0.12^abc	0.155±0.09^abcd	0.356±0.23^abcd
Mean	0.580±0.28^a	0.420±0.20^b	0.370±0.21^c	0.248±0.12^d	0.173±0.10^e
TR1	0.790^a	0.587^a	0.569^a	0.333^a	0.264^a	0.508±0.23^a
TR2	0.796^a	0.555^a	0.518^b	0.321^ab	0.246^a	0.487±0.22^b
TR3	0.716^b	0.497^b	0.435^c	0.295^b	0.207^b	0.430±0.19^c
TR4	0.486^c	0.376^c	0.288^d	0.235^c	0.132^c	0.303±0.13^d
TR5	0.114^d	0.086^d	0.038^e	0.058^d	0.014^d	0.062±0.04^e

Notes: (1) TR₁, TR₂, TR₃, TR₄, and TR₅ represent the transmission coefficients for solar beam radiation penetration at the elevation angles of 9°, 27°, 45°, 63°, and 81°, respectively. (2) The lowercase letters denote significant differences at the level of 0.05.