Canonical Correlation Analysis for Determination of Relationship between Morphological and Physiological Pollinated Characteristics in Five Varieties of Phalaenopsis
محورهای موضوعی : مجله گیاهان زینتی
Fatemeh Bidarnamani
1
(Ph.D student in University of Zanjan, Zanjan, Iran)
Seyed Najmmaddin Mortazavi
2
(Associate Professor, Faculty of Agriculture, University of Zanjan, Zanjan, Iran)
Maryam Rahimi
3
(Assistant Professor, Faculty of Agriculture, University of Zabol, Zabol, Iran)
کلید واژه: Seed, Pollination, Orchid, Capsule, Nottingham,
چکیده مقاله :
Phalaenopsis is an important genus of orchids that is grown for economical production of cut flower and potted plants. The objective of this study is the evaluation of correlation between morphological and physiological traits of self and cross-pollination of 5 varieties of Phalaenopsis orchid. Some morphological traits were measured: Capsule length (CL), capsule volume (CV), weight of seeds in capsule (WSC), full weight of capsule (FWC) and empty weight of capsule (EWC) and physiological traits: Time to first pollination symptom (TPS), time to capsule swelling (TCS) and capsule ripening (CR). The results showed that correlation (canonical r) was 0.91 in first pair canonical variables; second and third pair canonical variables had correlation 0.68 and 0.30, respectively. The first canonical variable in physiological traits revealed 66.1% variation of physiological variables. Special values were 0.820, 1.388 and 4.850 for Wilks' Lambda, Pillai's Trace and Roy's Greatest Root, respectively. Canonical correlation was significant for physiological and morphological characteristics in all statistical tests. The first canonical variables in physiological characteristics had positive correlation with TCS and TPS, so it was resulted that if TCS was fewer, TPS and CR characteristics were fewer. In pollinated varieties, the lowest TCS belonged to Nottingham× Nottingham and Bucharest × Nottingham; and the most CR belonged to Dubrovnik× Dubrovnik and Memphis× Dubrovnik of pollination states; Therefore, it can be concluded that white and yellow female parent require fewer and more days for capsule swelling respectively.
فالانوپسیس یکی از جنسهای مهم ارکیده است که برای تولید اقتصادی بهعنوان گل بریده و گلدانی پرورش داده میشود. هدف از این پژوهش بررسی رابطه همبستگی بین صفات مورفولوژیک و فیزیولوژیک در شرایط خود و دگرگردهافشانی 5 رقم ارکیده فالانوپسیس است. برخی صفات مورفولوژیک (طول کپسول، حجم کپسول، وزن بذور در هر کپسول، وزن پر کپسول و وزن خالی کپسول) و صفات فیزیولوژیک (تعداد روز تا اولین علامت تلقیح، تعداد روز تا اولین علامت متورم شدن و تعداد روز تا رسیدن کپسول) برای ارزیابی همبستگی کانونی بین آنها اندازهگیری شد. نتایج نشان داد همبستگی در اولین جفت متغیر کانونی 91/0 بود، همبستگی دومین و سومین جفت متغیر به ترتیب 68/0 و 30/0 بود. اولین متغیر کانونی در صفات فیزیولوژیک 1/66 درصد از تنوع متغیرهای فیزیولوژیک را نشان داد. مقادیر ویژه برای ارقام ’رویز گریتست روت‘، ’پیلاس تریس‘ و ’ویلکس لامبادا‘ بهترتیب820/0، 388/1 و 850/4 بوده است. همبستگی کانونی در تمام آزمونهای آماری برای صفات فیزیولوژیک و مورفولوژیک معنیدار بود. اولین متغیر کانونی در صفات فیزیولوژیک همبستگی مثبت با صفات تعداد روز تا اولین علامت متورم شدن و تعداد روز تا اولین علامت تلقیح داشت، بنابراین هرچه تعداد روز تا اولین علامت متورم شدن کمتر باشد، تعداد روز تا اولین علامت تلقیح و رسیدن نیز کمتر خواهد بود. در ارقام گردهافشانی شده کمترین صفت تعداد روز تا اولین علامت متورم شدن مربوط به حالات گردهافشانی ’ناتینگهام × ناتینگهام‘ و ’بُکارست× ناتینگهام‘ بوده؛ بیشترین صفت تعداد روز تا رسیدن کپسول مربوط به حالات گردهافشانی ’دابروونیک × دابروونیک‘ و ’ممفیس × دابروونیک‘ بود. بنابراین میتوان نتیجه گرفت که والدین مادری سفید و زرد بهترتیب نیاز به کمترین و بیشترین تعداد روز تا متورم شدن کپسول داشتند.
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