On the Breeding of Bivoltine Breeds of the Silkworm, Bombyx mori L. (Lepidoptera: Bombycidae), Tolerant to High Temperature and High Humidity Conditions of the Tropics

Table 7

Generation wise mean performance for reeling of HH12 at two different temperatures.

	$40\pm 1^{°}$C and $85\pm 5$% RH						$25\pm 1^{°}$C and $65\pm 5$% RH
Generation	Reelability %	Filament length (m)	Renditta	Raw silk %	Filament size (d)	Neatness (p)	Reelability %	Filament length (m)	Renditta	Raw silk %	Filament size (d)	Neatness (p)
F1	81.00 (64.17)	794	6.71	14.93 (22.72)	2.39	85.33 (37.49)	85.67 (67.76)	986	5.83	17.16 (24.47)	2.87	92.33 (73.93)
F2	80.67 (63.92)	763	6.53	15.33 (23.05)	2.45	86.33 (68.31)	84.67 (66.95)	982	5.69	17.58 (24.79)	2.63	92.00 (72.59)
F3	82.00 (64.91)	792	6.28	15.94 (23.53)	2.54	88.67 (70.34)	85.67 (67.76)	1077	5.70	17.5 (24.75)	2.88	92.33 (73.93)
F4	81.00 (64.16)	852	6.82	14.68 (22.52)	2.53	90.00 (71.61)	83.33 (65.91)	1013	5.70	17.55 (24.77)	3.01	91.67 (73.26)
F5	80.67 (63.92)	871	6.59	15.18 (22.93)	2.43	89.33 (70.95)	84.00 (66.42)	963	5.66	17.65 (24.84)	2.85	90.67 (72.23)
F6	—	—	—	—	—	—	86.33 (68.31)	981	5.64	17.73 (24.90)	2.82	91.33 (72.89)
F7	80.67 (63.92)	965	6.40	15.64 (23.30)	2.69	90.33 (71.89)	86.00 (68.04)	1057	5.57	17.94 (25.06)	2.84	90.67 (72.23)
F8	—	—	—	—	—	—	86.33 (68.31)	1037	5.53	18.08 (25.16)	2.81	91.00 (72.56)
F9	82.00 (64.91)	878	6.64	15.08 (22.84)	2.37	90.00 (71.57)	85.33 (37.49)	1027	5.57	17.95 (25.07)	2.90	92.33 (73.93)
F10	—	—	—	—	—	—	86.33 (68.31)	1024	5.62	17.79 (24.95)	2.88	92.00 (73.59)
F11	80.67 (63.92)	976	6.57	15.27 (23.00)	2.42	90.33 (71.89)	86.33 (68.31)	1023	5.63	17.76 (24.92)	2.93	92.33 (73.93)
F12	—	—	—	—	—	—	86.67 (68.59)	1065	5.59	17.91 (25.03)	2.95	91.00 (72.60)
Mean	81.08	894	6.57	15.26	2.48	88.79	85.56	1020	5.65	17.72	2.86	91.64
$F$-test	ns	***	ns	ns	***	ns	***	*	ns	ns	***	ns
CD at 5%	—	29.20	—	—	0.11	—	1.01	66.06	—	—	0.08	—
CV%	1.58	5.33	4.19	4.20	4.69	2.17	1.32	4.69	2.12	2.12	3.42	1.17

${}^{*},\mathrm{\hspace{0.17em}\hspace{0.17em}}{}^{**},\mathrm{\hspace{0.17em}\hspace{0.17em}}{}^{***}\text{Denote}$ significant difference at 5%, 1% and 0.1% level, respectively. ns: Denote non significant. Values in parenthesis are angular transformed.